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500 lines
35 KiB
C#
500 lines
35 KiB
C#
using FreeSql.DataAnnotations;
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using FreeSql.DatabaseModel;
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using FreeSql.Internal;
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using FreeSql.Internal.Model;
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using Oracle.ManagedDataAccess.Client;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Data;
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using System.Linq;
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using System.Reflection;
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using System.Text;
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using System.Text.RegularExpressions;
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namespace FreeSql.Oracle
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{
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class OracleCodeFirst : Internal.CommonProvider.CodeFirstProvider
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{
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public OracleCodeFirst(IFreeSql orm, CommonUtils commonUtils, CommonExpression commonExpression) : base(orm, commonUtils, commonExpression) { }
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static object _dicCsToDbLock = new object();
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static Dictionary<string, CsToDb<OracleDbType>> _dicCsToDb = new Dictionary<string, CsToDb<OracleDbType>>() {
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{ typeof(bool).FullName, CsToDb.New(OracleDbType.Boolean, "number","number(1) NOT NULL", null, false, false) },{ typeof(bool?).FullName, CsToDb.New(OracleDbType.Boolean, "number","number(1) NULL", null, true, null) },
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{ typeof(sbyte).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(4) NOT NULL", false, false, 0) },{ typeof(sbyte?).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(4) NULL", false, true, null) },
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{ typeof(short).FullName, CsToDb.New(OracleDbType.Int16, "number","number(6) NOT NULL", false, false, 0) },{ typeof(short?).FullName, CsToDb.New(OracleDbType.Int16, "number", "number(6) NULL", false, true, null) },
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{ typeof(int).FullName, CsToDb.New(OracleDbType.Int32, "number", "number(11) NOT NULL", false, false, 0) },{ typeof(int?).FullName, CsToDb.New(OracleDbType.Int32, "number", "number(11) NULL", false, true, null) },
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{ typeof(long).FullName, CsToDb.New(OracleDbType.Int64, "number","number(21) NOT NULL", false, false, 0) },{ typeof(long?).FullName, CsToDb.New(OracleDbType.Int64, "number","number(21) NULL", false, true, null) },
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{ typeof(byte).FullName, CsToDb.New(OracleDbType.Byte, "number","number(3) NOT NULL", true, false, 0) },{ typeof(byte?).FullName, CsToDb.New(OracleDbType.Byte, "number","number(3) NULL", true, true, null) },
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{ typeof(ushort).FullName, CsToDb.New(OracleDbType.Decimal, "number","number(5) NOT NULL", true, false, 0) },{ typeof(ushort?).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(5) NULL", true, true, null) },
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{ typeof(uint).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(10) NOT NULL", true, false, 0) },{ typeof(uint?).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(10) NULL", true, true, null) },
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{ typeof(ulong).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(20) NOT NULL", true, false, 0) },{ typeof(ulong?).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(20) NULL", true, true, null) },
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{ typeof(double).FullName, CsToDb.New(OracleDbType.Double, "float", "float(126) NOT NULL", false, false, 0) },{ typeof(double?).FullName, CsToDb.New(OracleDbType.Double, "float", "float(126) NULL", false, true, null) },
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{ typeof(float).FullName, CsToDb.New(OracleDbType.Single, "float","float(63) NOT NULL", false, false, 0) },{ typeof(float?).FullName, CsToDb.New(OracleDbType.Single, "float","float(63) NULL", false, true, null) },
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{ typeof(decimal).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(10,2) NOT NULL", false, false, 0) },{ typeof(decimal?).FullName, CsToDb.New(OracleDbType.Decimal, "number", "number(10,2) NULL", false, true, null) },
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{ typeof(TimeSpan).FullName, CsToDb.New(OracleDbType.IntervalDS, "interval day to second","interval day(2) to second(6) NOT NULL", false, false, 0) },{ typeof(TimeSpan?).FullName, CsToDb.New(OracleDbType.IntervalDS, "interval day to second", "interval day(2) to second(6) NULL",false, true, null) },
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{ typeof(DateTime).FullName, CsToDb.New(OracleDbType.TimeStamp, "timestamp", "timestamp(6) NOT NULL", false, false, new DateTime(1970,1,1)) },{ typeof(DateTime?).FullName, CsToDb.New(OracleDbType.TimeStamp, "timestamp", "timestamp(6) NULL", false, true, null) },
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{ typeof(DateTimeOffset).FullName, CsToDb.New(OracleDbType.TimeStampLTZ, "timestamp with local time zone", "timestamp(6) with local time zone NOT NULL", false, false, new DateTime(1970,1,1)) },{ typeof(DateTimeOffset?).FullName, CsToDb.New(OracleDbType.TimeStampLTZ, "timestamp with local time zone", "timestamp(6) with local time zone NULL", false, true, null) },
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{ typeof(byte[]).FullName, CsToDb.New(OracleDbType.Blob, "blob", "blob NULL", false, null, new byte[0]) },
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{ typeof(string).FullName, CsToDb.New(OracleDbType.NVarchar2, "nvarchar2", "nvarchar2(255) NULL", false, null, "") },
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{ typeof(Guid).FullName, CsToDb.New(OracleDbType.Char, "char", "char(36 CHAR) NOT NULL", false, false, Guid.Empty) },{ typeof(Guid?).FullName, CsToDb.New(OracleDbType.Char, "char", "char(36 CHAR) NULL", false, true, null) },
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};
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public override DbInfoResult GetDbInfo(Type type)
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{
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if (_dicCsToDb.TryGetValue(type.FullName, out var trydc)) return new DbInfoResult((int)trydc.type, trydc.dbtype, trydc.dbtypeFull, trydc.isnullable, trydc.defaultValue);
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if (type.IsArray) return null;
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var enumType = type.IsEnum ? type : null;
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if (enumType == null && type.IsNullableType())
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{
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var genericTypes = type.GetGenericArguments();
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if (genericTypes.Length == 1 && genericTypes.First().IsEnum) enumType = genericTypes.First();
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}
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if (enumType != null)
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{
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var newItem = enumType.GetCustomAttributes(typeof(FlagsAttribute), false).Any() ?
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CsToDb.New(OracleDbType.Int32, "number", $"number(16){(type.IsEnum ? " NOT NULL" : "")}", false, type.IsEnum ? false : true, Enum.GetValues(enumType).GetValue(0)) :
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CsToDb.New(OracleDbType.Int64, "number", $"number(32){(type.IsEnum ? " NOT NULL" : "")}", false, type.IsEnum ? false : true, Enum.GetValues(enumType).GetValue(0));
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if (_dicCsToDb.ContainsKey(type.FullName) == false)
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{
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lock (_dicCsToDbLock)
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{
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if (_dicCsToDb.ContainsKey(type.FullName) == false)
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_dicCsToDb.Add(type.FullName, newItem);
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}
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}
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return new DbInfoResult((int)newItem.type, newItem.dbtype, newItem.dbtypeFull, newItem.isnullable, newItem.defaultValue);
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}
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return null;
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}
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protected override string GetComparisonDDLStatements(params TypeAndName[] objects)
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{
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var userId = (_orm.Ado.MasterPool as OracleConnectionPool)?.UserId;
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if (string.IsNullOrEmpty(userId))
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using (var conn = _orm.Ado.MasterPool.Get())
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{
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userId = OracleConnectionPool.GetUserId(conn.Value.ConnectionString);
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}
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var seqcols = new List<NaviteTuple<ColumnInfo, string[], bool>>(); //序列：列，表，自增
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var seqnameDel = new List<string>(); //要删除的序列+触发器
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var sb = new StringBuilder();
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var sbDeclare = new StringBuilder();
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foreach (var obj in objects)
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{
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if (sb.Length > 0) sb.Append("\r\n");
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var tb = _commonUtils.GetTableByEntity(obj.entityType);
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if (tb == null) throw new Exception($"类型 {obj.entityType.FullName} 不可迁移");
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if (tb.Columns.Any() == false) throw new Exception($"类型 {obj.entityType.FullName} 不可迁移，可迁移属性0个");
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var tbname = _commonUtils.SplitTableName(tb.DbName);
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if (tbname?.Length == 1) tbname = new[] { userId, tbname[0] };
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var tboldname = _commonUtils.SplitTableName(tb.DbOldName); //旧表名
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if (tboldname?.Length == 1) tboldname = new[] { userId, tboldname[0] };
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var primaryKeyName = (obj.entityType.GetCustomAttributes(typeof(OraclePrimaryKeyNameAttribute), false)?.FirstOrDefault() as OraclePrimaryKeyNameAttribute)?.Name;
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if (string.IsNullOrEmpty(obj.tableName) == false)
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{
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var tbtmpname = _commonUtils.SplitTableName(obj.tableName);
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if (tbtmpname?.Length == 1) tbtmpname = new[] { userId, tbtmpname[0] };
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if (tbname[0] != tbtmpname[0] || tbname[1] != tbtmpname[1])
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{
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tbname = tbtmpname;
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tboldname = null;
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primaryKeyName = null;
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}
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}
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//codefirst 不支持表名中带 .
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if (string.Compare(tbname[0], userId) != 0 && _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from sys.dba_users where username={0}", tbname[0])) == null) //创建数据库
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throw new NotImplementedException($"Oracle CodeFirst 不支持代码创建 tablespace 与 schemas {tbname[0]}");
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var sbalter = new StringBuilder();
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var istmpatler = false; //创建临时表，导入数据，删除旧表，修改
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if (_orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from all_tab_comments where owner={0} and table_name={1}", tbname)) == null)
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{ //表不存在
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if (tboldname != null)
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{
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if (_orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from all_tab_comments where owner={0} and table_name={1}", tboldname)) == null)
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//模式或表不存在
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tboldname = null;
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}
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if (tboldname == null)
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{
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//创建表
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var createTableName = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
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sb.Append("execute immediate 'CREATE TABLE ").Append(createTableName).Append(" ( ");
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType).Append(",");
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if (tbcol.Attribute.IsIdentity == true) seqcols.Add(NaviteTuple.Create(tbcol, tbname, true));
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}
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if (tb.Primarys.Any())
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{
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var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk1";
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sb.Append(" \r\n CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
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foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
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sb.Remove(sb.Length - 2, 2).Append("),");
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}
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sb.Remove(sb.Length - 1, 1);
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sb.Append("\r\n) \r\nLOGGING \r\nNOCOMPRESS \r\nNOCACHE\r\n';\r\n");
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//创建表的索引
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foreach (var uk in tb.Indexes)
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{
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sb.Append("execute immediate 'CREATE ");
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if (uk.IsUnique) sb.Append("UNIQUE ");
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sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(createTableName).Append("(");
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foreach (var tbcol in uk.Columns)
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{
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sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
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if (tbcol.IsDesc) sb.Append(" DESC");
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sb.Append(", ");
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}
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sb.Remove(sb.Length - 2, 2).Append(")';\r\n");
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}
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//备注
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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if (string.IsNullOrEmpty(tbcol.Comment) == false)
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sb.Append("execute immediate 'COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment).Replace("'", "''")).Append("';\r\n");
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}
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if (string.IsNullOrEmpty(tb.Comment) == false)
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sb.Append("execute immediate 'COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment).Replace("'", "''")).Append("';\r\n");
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continue;
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}
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//如果新表，旧表在一个模式下，直接修改表名
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if (string.Compare(tbname[0], tboldname[0], true) == 0)
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sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}")).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName($"{tbname[1]}")).Append("';\r\n");
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else
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{
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//如果新表，旧表不在一起，创建新表，导入数据，删除旧表
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istmpatler = true;
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}
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}
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else
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tboldname = null; //如果新表已经存在，不走改表名逻辑
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//对比字段，只可以修改类型、增加字段、有限的修改字段名；保证安全不删除字段
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var sql = _commonUtils.FormatSql($@"
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select
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a.column_name,
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a.data_type,
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a.data_length,
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a.data_precision,
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a.data_scale,
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a.char_used,
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case when a.nullable = 'N' then 0 else 1 end,
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nvl((select 1 from user_sequences where upper(sequence_name)=upper('{Utils.GetCsName((tboldname ?? tbname).Last())}_seq_'||a.column_name) and rownum < 2), 0),
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nvl((select 1 from user_triggers where upper(trigger_name)=upper('{Utils.GetCsName((tboldname ?? tbname).Last())}_seq_'||a.column_name||'TI') and rownum < 2), 0),
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b.comments
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from all_tab_columns a
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left join all_col_comments b on b.owner = a.owner and b.table_name = a.table_name and b.column_name = a.column_name
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where a.owner={{0}} and a.table_name={{1}}", tboldname ?? tbname);
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var ds = _orm.Ado.ExecuteArray(CommandType.Text, sql);
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var tbstruct = ds.ToDictionary(a => string.Concat(a[0]), a =>
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{
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var sqlType = GetOracleSqlTypeFullName(a);
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return new
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{
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column = string.Concat(a[0]),
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sqlType,
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is_nullable = string.Concat(a[6]) == "1",
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is_identity = string.Concat(a[7]) == "1" && string.Concat(a[8]) == "1",
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comment = string.Concat(a[9])
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};
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}, StringComparer.CurrentCultureIgnoreCase);
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if (istmpatler == false)
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{
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foreach (var tbcol in tb.ColumnsByPosition)
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{
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var dbtypeNoneNotNull = Regex.Replace(tbcol.Attribute.DbType, @"NOT\s+NULL", "NULL");
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if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
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string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
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{
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var isCommentChanged = tbstructcol.comment != (tbcol.Comment ?? "");
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if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false)
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{
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istmpatler = true;
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if (tbcol.Attribute.DbType.StartsWith("varchar", StringComparison.CurrentCultureIgnoreCase) && tbstructcol.sqlType.StartsWith("varchar2", StringComparison.CurrentCultureIgnoreCase)
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&& Regex.Match(tbcol.Attribute.DbType, @"\(\d+").Groups[0].Value == Regex.Match(tbstructcol.sqlType, @"\(\d+").Groups[0].Value)
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istmpatler = false;
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}
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//sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" MODIFY (").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" ").Append(dbtypeNoneNotNull).Append(")';\r\n");
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if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
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{
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if (tbcol.Attribute.IsNullable == false)
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sbalter.Append("execute immediate 'UPDATE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" SET ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" = ").Append(tbcol.DbDefaultValue.Replace("'", "''")).Append(" WHERE ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" IS NULL';\r\n");
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sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" MODIFY ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" ").Append(tbcol.Attribute.IsNullable == true ? "" : "NOT").Append(" NULL';\r\n");
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}
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if (string.Compare(tbstructcol.column, tbcol.Attribute.OldName, true) == 0)
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{
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if (tbstructcol.is_identity)
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seqnameDel.Add(Utils.GetCsName($"{tbname[1]}_seq_{tbstructcol.column}"));
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//修改列名
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sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" RENAME COLUMN ").Append(_commonUtils.QuoteSqlName(tbstructcol.column)).Append(" TO ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append("';\r\n");
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if (tbcol.Attribute.IsIdentity)
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seqcols.Add(NaviteTuple.Create(tbcol, tbname, tbcol.Attribute.IsIdentity == true));
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}
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else if (tbcol.Attribute.IsIdentity != tbstructcol.is_identity)
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seqcols.Add(NaviteTuple.Create(tbcol, tbname, tbcol.Attribute.IsIdentity == true));
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if (isCommentChanged)
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sbalter.Append("execute immediate 'COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment ?? "").Replace("'", "''")).Append("';\r\n");
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continue;
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}
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//添加列
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sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" ADD (").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(dbtypeNoneNotNull).Append(")';\r\n");
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if (tbcol.Attribute.IsNullable == false)
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{
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sbalter.Append("execute immediate 'UPDATE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" SET ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" = ").Append(tbcol.DbDefaultValue.Replace("'", "''")).Append("';\r\n");
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sbalter.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" MODIFY ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" NOT NULL';\r\n");
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}
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if (tbcol.Attribute.IsIdentity == true) seqcols.Add(NaviteTuple.Create(tbcol, tbname, tbcol.Attribute.IsIdentity == true));
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if (string.IsNullOrEmpty(tbcol.Comment) == false) sbalter.Append("execute immediate 'COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment ?? "").Replace("'", "''")).Append("';\r\n");
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}
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CreateOracleFunction(_orm);
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var dsuksql = _commonUtils.FormatSql(@"
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select
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nvl(freesql_long_2_varchar(a.index_name, c.table_name, c.column_position), c.column_name),
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a.index_name,
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case when c.descend = 'DESC' then 1 else 0 end,
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case when a.uniqueness = 'UNIQUE' then 1 else 0 end
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from all_indexes a,
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all_ind_columns c
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where a.index_name = c.index_name
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and a.table_owner = c.table_owner
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and a.table_name = c.table_name
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and a.owner in ({0}) and a.table_name in ({1})
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and not exists(select 1 from all_constraints where constraint_name = a.index_name and constraint_type = 'P')", tboldname ?? tbname);
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var dsuk = _orm.Ado.ExecuteArray(CommandType.Text, dsuksql).Select(a => new[] { string.Concat(a[0]).Trim('"'), string.Concat(a[1]), string.Concat(a[2]), string.Concat(a[3]) }).ToArray();
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foreach (var uk in tb.Indexes)
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{
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if (string.IsNullOrEmpty(uk.Name) || uk.Columns.Any() == false) continue;
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var dsukfind1 = dsuk.Where(a => string.Compare(a[1], uk.Name, true) == 0).ToArray();
|
||
if (dsukfind1.Any() == false || dsukfind1.Length != uk.Columns.Length || dsukfind1.Where(a => uk.Columns.Where(b => (a[3] == "1") == uk.IsUnique && string.Compare(b.Column.Attribute.Name, a[0], true) == 0 && (a[2] == "1") == b.IsDesc).Any()).Count() != uk.Columns.Length)
|
||
{
|
||
if (dsukfind1.Any()) sbalter.Append("execute immediate 'DROP INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append("';\r\n");
|
||
sbalter.Append("execute immediate 'CREATE ");
|
||
if (uk.IsUnique) sbalter.Append("UNIQUE ");
|
||
sbalter.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append("(");
|
||
foreach (var tbcol in uk.Columns)
|
||
{
|
||
sbalter.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||
if (tbcol.IsDesc) sbalter.Append(" DESC");
|
||
sbalter.Append(", ");
|
||
}
|
||
sbalter.Remove(sbalter.Length - 2, 2).Append(")';\r\n");
|
||
}
|
||
}
|
||
}
|
||
if (istmpatler == false)
|
||
{
|
||
var dbcomment = string.Concat(_orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select comments from all_tab_comments where owner = {0} and table_name = {1} and table_type = 'TABLE'", tbname[0], tbname[1])));
|
||
if (dbcomment != (tb.Comment ?? ""))
|
||
sb.Append("execute immediate 'COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment).Replace("'", "''")).Append("';\r\n");
|
||
|
||
sb.Append(sbalter);
|
||
continue;
|
||
}
|
||
var oldpk = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(@" select constraint_name from user_constraints where owner={0} and table_name={1} and constraint_type='P'", tbname))?.ToString();
|
||
if (string.IsNullOrEmpty(oldpk) == false)
|
||
sb.Append("execute immediate 'ALTER TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}")).Append(" DROP CONSTRAINT ").Append(oldpk).Append("';\r\n");
|
||
|
||
//创建临时表，数据导进临时表，然后删除原表，将临时表改名为原表名
|
||
var tablename = tboldname == null ? _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}") : _commonUtils.QuoteSqlName($"{tboldname[0]}.{tboldname[1]}");
|
||
var tmptablename = _commonUtils.QuoteSqlName($"{tbname[0]}.FTmp_{tbname[1]}");
|
||
//创建临时表
|
||
sb.Append("execute immediate 'CREATE TABLE ").Append(tmptablename).Append(" ( ");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
sb.Append(" \r\n ").Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(" ").Append(tbcol.Attribute.DbType).Append(",");
|
||
if (tbcol.Attribute.IsIdentity == true) seqcols.Add(NaviteTuple.Create(tbcol, tbname, true));
|
||
}
|
||
if (tb.Primarys.Any())
|
||
{
|
||
var pkname = primaryKeyName ?? $"{tbname[0]}_{tbname[1]}_pk2";
|
||
sb.Append(" \r\n CONSTRAINT ").Append(_commonUtils.QuoteSqlName(pkname)).Append(" PRIMARY KEY (");
|
||
foreach (var tbcol in tb.Primarys) sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||
sb.Remove(sb.Length - 2, 2).Append("),");
|
||
}
|
||
sb.Remove(sb.Length - 1, 1);
|
||
sb.Append("\r\n) LOGGING \r\nNOCOMPRESS \r\nNOCACHE\r\n';\r\n");
|
||
//备注
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
if (string.IsNullOrEmpty(tbcol.Comment) == false)
|
||
sb.Append("execute immediate 'COMMENT ON COLUMN ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.FTmp_{tbname[1]}.{tbcol.Attribute.Name}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tbcol.Comment).Replace("'", "''")).Append("';\r\n");
|
||
}
|
||
if (string.IsNullOrEmpty(tb.Comment) == false)
|
||
sb.Append("execute immediate 'COMMENT ON TABLE ").Append(_commonUtils.QuoteSqlName($"{tbname[0]}.FTmp_{tbname[1]}")).Append(" IS ").Append(_commonUtils.FormatSql("{0}", tb.Comment).Replace("'", "''")).Append("';\r\n");
|
||
|
||
sb.Append("execute immediate 'INSERT INTO ").Append(tmptablename).Append(" (");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Attribute.Name)).Append(", ");
|
||
sb.Remove(sb.Length - 2, 2).Append(")\r\nSELECT ");
|
||
foreach (var tbcol in tb.ColumnsByPosition)
|
||
{
|
||
var insertvalue = "NULL";
|
||
if (tbstruct.TryGetValue(tbcol.Attribute.Name, out var tbstructcol) ||
|
||
string.IsNullOrEmpty(tbcol.Attribute.OldName) == false && tbstruct.TryGetValue(tbcol.Attribute.OldName, out tbstructcol))
|
||
{
|
||
insertvalue = _commonUtils.QuoteSqlName(tbstructcol.column);
|
||
if (tbcol.Attribute.DbType.StartsWith(tbstructcol.sqlType, StringComparison.CurrentCultureIgnoreCase) == false)
|
||
{
|
||
var dbtypeNoneNotNull = Regex.Replace(tbcol.Attribute.DbType, @"(NOT\s+)?NULL", "");
|
||
insertvalue = $"cast({insertvalue} as {dbtypeNoneNotNull})";
|
||
}
|
||
if (tbcol.Attribute.IsNullable != tbstructcol.is_nullable)
|
||
insertvalue = $"nvl({insertvalue},{tbcol.DbDefaultValue})";
|
||
}
|
||
else if (tbcol.Attribute.IsNullable == false)
|
||
insertvalue = tbcol.DbDefaultValue;
|
||
sb.Append(insertvalue.Replace("'", "''")).Append(", ");
|
||
}
|
||
sb.Remove(sb.Length - 2, 2).Append(" FROM ").Append(tablename).Append("';\r\n");
|
||
sb.Append("execute immediate 'DROP TABLE ").Append(tablename).Append("';\r\n");
|
||
sb.Append("execute immediate 'ALTER TABLE ").Append(tmptablename).Append(" RENAME TO ").Append(_commonUtils.QuoteSqlName($"{tbname[1]}")).Append("';\r\n");
|
||
//创建表的索引
|
||
foreach (var uk in tb.Indexes)
|
||
{
|
||
sb.Append("execute immediate 'CREATE ");
|
||
if (uk.IsUnique) sb.Append("UNIQUE ");
|
||
sb.Append("INDEX ").Append(_commonUtils.QuoteSqlName(uk.Name)).Append(" ON ").Append(tablename).Append("(");
|
||
foreach (var tbcol in uk.Columns)
|
||
{
|
||
sb.Append(_commonUtils.QuoteSqlName(tbcol.Column.Attribute.Name));
|
||
if (tbcol.IsDesc) sb.Append(" DESC");
|
||
sb.Append(", ");
|
||
}
|
||
sb.Remove(sb.Length - 2, 2).Append(")';\r\n");
|
||
}
|
||
}
|
||
Dictionary<string, bool> dicDeclare = new Dictionary<string, bool>();
|
||
Action<string> dropSequence = seqname =>
|
||
{
|
||
if (dicDeclare.ContainsKey(seqname) == false)
|
||
{
|
||
sbDeclare.Append("\r\nIS").Append(seqname).Append(" NUMBER; \r\n");
|
||
dicDeclare.Add(seqname, true);
|
||
}
|
||
sb.Append("IS").Append(seqname).Append(" := 0; \r\n")
|
||
.Append(" select count(1) into IS").Append(seqname).Append(_commonUtils.FormatSql(" from user_sequences where sequence_name={0}; \r\n", seqname))
|
||
.Append("if IS").Append(seqname).Append(" > 0 then \r\n")
|
||
.Append(" execute immediate 'DROP SEQUENCE ").Append(_commonUtils.QuoteSqlName(seqname)).Append("';\r\n")
|
||
.Append("end if; \r\n");
|
||
};
|
||
Action<string> dropTrigger = tiggerName =>
|
||
{
|
||
if (dicDeclare.ContainsKey(tiggerName) == false)
|
||
{
|
||
sbDeclare.Append("\r\nIS").Append(tiggerName).Append(" NUMBER; \r\n");
|
||
dicDeclare.Add(tiggerName, true);
|
||
}
|
||
sb.Append("IS").Append(tiggerName).Append(" := 0; \r\n")
|
||
.Append(" select count(1) into IS").Append(tiggerName).Append(_commonUtils.FormatSql(" from user_triggers where trigger_name={0}; \r\n", tiggerName))
|
||
.Append("if IS").Append(tiggerName).Append(" > 0 then \r\n")
|
||
.Append(" execute immediate 'DROP TRIGGER ").Append(_commonUtils.QuoteSqlName(tiggerName)).Append("';\r\n")
|
||
.Append("end if; \r\n");
|
||
};
|
||
foreach (var seqname in seqnameDel)
|
||
{
|
||
dropSequence(seqname);
|
||
dropTrigger(seqname + "TI");
|
||
}
|
||
foreach (var seqcol in seqcols)
|
||
{
|
||
var tbname = seqcol.Item2;
|
||
var seqname = Utils.GetCsName($"{tbname[1]}_seq_{seqcol.Item1.Attribute.Name}").ToUpper();
|
||
var tiggerName = seqname + "TI";
|
||
var tbname2 = _commonUtils.QuoteSqlName($"{tbname[0]}.{tbname[1]}");
|
||
var colname2 = _commonUtils.QuoteSqlName(seqcol.Item1.Attribute.Name);
|
||
dropSequence(seqname);
|
||
if (seqcol.Item3)
|
||
{
|
||
var startWith = _orm.Ado.ExecuteScalar(CommandType.Text, _commonUtils.FormatSql(" select 1 from all_tab_columns where owner={0} and table_name={1} and column_name={2}", tbname[0], tbname[1], seqcol.Item1.Attribute.Name)) == null ? 1 :
|
||
_orm.Ado.ExecuteScalar(CommandType.Text, $" select nvl(max({colname2})+1,1) from {tbname2}");
|
||
sb.Append("execute immediate 'CREATE SEQUENCE ").Append(_commonUtils.QuoteSqlName(seqname)).Append(" start with ").Append(startWith).Append("';\r\n");
|
||
sb.Append("execute immediate 'CREATE OR REPLACE TRIGGER ").Append(_commonUtils.QuoteSqlName(tiggerName))
|
||
.Append(" \r\nbefore insert on ").Append(tbname2)
|
||
.Append(" \r\nfor each row \r\nbegin\r\nselect ").Append(_commonUtils.QuoteSqlName(seqname))
|
||
.Append(".nextval into :new.").Append(colname2).Append(" from dual;\r\nend;';\r\n");
|
||
}
|
||
else
|
||
dropTrigger(tiggerName);
|
||
}
|
||
if (sbDeclare.Length > 0) sbDeclare.Insert(0, "declare ");
|
||
return sb.Length == 0 ? null : sb.Insert(0, "BEGIN \r\n").Insert(0, sbDeclare.ToString()).Append("END;").ToString();
|
||
}
|
||
|
||
internal static string GetOracleSqlTypeFullName(object[] row)
|
||
{
|
||
var a = row;
|
||
var sqlType = string.Concat(a[1]).ToUpper();
|
||
var data_length = long.Parse(string.Concat(a[2]));
|
||
long.TryParse(string.Concat(a[3]), out var data_precision);
|
||
long.TryParse(string.Concat(a[4]), out var data_scale);
|
||
var char_used = string.Concat(a[5]);
|
||
if (Regex.IsMatch(sqlType, @"INTERVAL DAY\(\d+\) TO SECOND\(\d+\)", RegexOptions.IgnoreCase))
|
||
{
|
||
}
|
||
else if (Regex.IsMatch(sqlType, @"INTERVAL YEAR\(\d+\) TO MONTH", RegexOptions.IgnoreCase))
|
||
{
|
||
}
|
||
else if (sqlType.StartsWith("TIMESTAMP", StringComparison.CurrentCultureIgnoreCase))
|
||
{
|
||
}
|
||
else if (sqlType.StartsWith("BLOB"))
|
||
{
|
||
}
|
||
else if (sqlType.StartsWith("CLOB"))
|
||
{
|
||
}
|
||
else if (sqlType.StartsWith("NCLOB"))
|
||
{
|
||
}
|
||
else if (char_used.ToLower() == "c")
|
||
sqlType += sqlType.StartsWith("N") ? $"({data_length / 2})" : $"({data_length / 4} CHAR)";
|
||
else if (char_used.ToLower() == "b")
|
||
sqlType += $"({data_length} BYTE)";
|
||
else if (sqlType.ToLower() == "float")
|
||
sqlType += $"({data_precision})";
|
||
else if (data_precision > 0 && data_scale > 0)
|
||
sqlType += $"({data_precision},{data_scale})";
|
||
else if (data_precision > 0)
|
||
sqlType += $"({data_precision})";
|
||
else
|
||
sqlType += $"({data_length})";
|
||
return sqlType;
|
||
}
|
||
internal static void CreateOracleFunction(IFreeSql fsql)
|
||
{
|
||
fsql.Ado.ExecuteNonQuery(CommandType.Text, @"
|
||
CREATE OR REPLACE FUNCTION freesql_long_2_varchar (
|
||
p_index_name IN user_ind_expressions.index_name%TYPE,
|
||
p_table_name IN user_ind_expressions.table_name%TYPE,
|
||
p_COLUMN_POSITION IN user_ind_expressions.table_name%TYPE)
|
||
RETURN VARCHAR2
|
||
AS
|
||
l_COLUMN_EXPRESSION LONG;
|
||
BEGIN
|
||
SELECT COLUMN_EXPRESSION
|
||
INTO l_COLUMN_EXPRESSION
|
||
FROM user_ind_expressions
|
||
WHERE index_name = p_index_name
|
||
AND table_name = p_table_name
|
||
AND COLUMN_POSITION = p_COLUMN_POSITION;
|
||
|
||
RETURN SUBSTR (l_COLUMN_EXPRESSION, 1, 4000);
|
||
END;");
|
||
}
|
||
}
|
||
} |