- 补充 fsql.InsertOrUpdate IfExistsDoNothing 数据存在时不做任何事(不更新) #330 #316;

This commit is contained in:
28810
2020-07-18 11:58:58 +08:00
parent f97e7c21eb
commit 8d11993e6c
44 changed files with 5585 additions and 73 deletions

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@ -35,6 +35,13 @@ namespace FreeSql
/// <returns></returns>
IInsertOrUpdate<T1> SetSource(IEnumerable<T1> source);
/// <summary>
/// 当记录存在时,什么都不做<para></para>
/// 换句话:只有记录不存在时才插入
/// </summary>
/// <returns></returns>
IInsertOrUpdate<T1> IfExistsDoNothing();
/// <summary>
/// 设置表名规则,可用于分库/分表参数1默认表名返回值新表名
/// </summary>

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@ -45,14 +45,17 @@ public interface IFreeSql : IDisposable
IInsert<T1> Insert<T1>(IEnumerable<T1> source) where T1 : class;
/// <summary>
/// 插入或更新数据<para></para>
/// MySql: on duplicate key update<para></para>
/// PostgreSQL: on conflict do update<para></para>
/// SqlServer: merge into<para></para>
/// Oracle: merge into<para></para>
/// 插入或更新数据,此功能依赖数据库特性(低版本可能不支持),参考如下:<para></para>
/// MySql 5.6+: on duplicate key update<para></para>
/// PostgreSQL 9.4+: on conflict do update<para></para>
/// SqlServer 2008+: merge into<para></para>
/// Oracle 11+: merge into<para></para>
/// Sqlite: replace into<para></para>
/// Dameng: merge into<para></para>
/// 注意:还可以使用 FreeSql.Repository 的 InsertOrUpdate 方法
/// 达梦: merge into<para></para>
/// 人大金仓on conflict do update<para></para>
/// 神通merge into<para></para>
/// MsAccess不支持<para></para>
/// 注意区别FreeSql.Repository 仓储也有 InsertOrUpdate 方法(不依赖数据库特性)
/// </summary>
/// <typeparam name="T1"></typeparam>
/// <returns></returns>