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sqlserver 表达式函数测试

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28810 2018-12-21 19:46:03 +08:00
parent 759d507cef
commit 7a61aea544
3 changed files with 27 additions and 27 deletions
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2
Docs/expression.md
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@ -71,7 +71,7 @@
| a.ToString() | date_format(a, '%Y-%m-%d %H:%i:%s.%f') | convert(varchar, a, 121) | - | 转换字符串 | | a.ToString() | date_format(a, '%Y-%m-%d %H:%i:%s.%f') | convert(varchar, a, 121) | - | 转换字符串 |
### 时间对象 ### 时间对象
| 表达式 | MySql | SqlServer | PostgreSQL | 功能说明 | | 表达式 | MySql(微秒) | SqlServer(秒) | PostgreSQL | 功能说明 |
| - | - | - | - | - | | - | - | - | - | - |
| TimeSpan.Zero | 0 | 0 | - | 0微秒 | | TimeSpan.Zero | 0 | 0 | - | 0微秒 |
| TimeSpan.MaxValue | 922337203685477580 | 922337203685477580 | - | 最大微秒时间 | | TimeSpan.MaxValue | 922337203685477580 | 922337203685477580 | - | 最大微秒时间 |

4
FreeSql/SqlServer/SqlServerAdo/SqlServerAdo.cs
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@ -37,9 +37,9 @@ namespace FreeSql.SqlServer {
else if (param is DateTime?) else if (param is DateTime?)
return string.Concat("'", (param as DateTime?).Value.ToString("yyyy-MM-dd HH:mm:ss.fff"), "'"); return string.Concat("'", (param as DateTime?).Value.ToString("yyyy-MM-dd HH:mm:ss.fff"), "'");
else if (param is TimeSpan) else if (param is TimeSpan)
return ((TimeSpan)param).Ticks / 10; return ((TimeSpan)param).TotalSeconds;
else if (param is TimeSpan?) else if (param is TimeSpan?)
return (param as TimeSpan?).Value.Ticks / 10; return (param as TimeSpan?).Value.TotalSeconds;
else if (param is IEnumerable) { else if (param is IEnumerable) {
var sb = new StringBuilder(); var sb = new StringBuilder();
var ie = param as IEnumerable; var ie = param as IEnumerable;

48
FreeSql/SqlServer/SqlServerExpression.cs
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@ -37,7 +37,7 @@ namespace FreeSql.SqlServer {
var left = ExpressionLambdaToSql(exp.Expression, _tables, _selectColumnMap, tbtype, isQuoteName); var left = ExpressionLambdaToSql(exp.Expression, _tables, _selectColumnMap, tbtype, isQuoteName);
switch (exp.Member.Name) { switch (exp.Member.Name) {
case "Date": return $"convert(char(10),{left},120)"; case "Date": return $"convert(char(10),{left},120)";
case "TimeOfDay": return $"(datediff(millisecond, '1970-1-1 ' + convert(varchar, {left}, 14), {left}) * 1000 + 62135596800000000)"; case "TimeOfDay": return $"datediff(second, '1970-1-1 ' + convert(varchar, {left}, 14), {left})";
case "DayOfWeek": return $"(datepart(weekday, {left}) - 1)"; case "DayOfWeek": return $"(datepart(weekday, {left}) - 1)";
case "Day": return $"datepart(day, {left})"; case "Day": return $"datepart(day, {left})";
case "DayOfYear": return $"datepart(dayofyear, {left})"; case "DayOfYear": return $"datepart(dayofyear, {left})";
@ -47,7 +47,7 @@ namespace FreeSql.SqlServer {
case "Minute": return $"datepart(minute, {left})"; case "Minute": return $"datepart(minute, {left})";
case "Second": return $"datepart(second, {left})"; case "Second": return $"datepart(second, {left})";
case "Millisecond": return $"datepart(millisecond, {left})"; case "Millisecond": return $"datepart(millisecond, {left})";
case "Ticks": return $"(datediff(millisecond, '1970-1-1', {left}) * 10000 + 621355968000000000)"; case "Ticks": return $"datediff(second, '1970-1-1', {left})";
} }
return null; return null;
} }
@ -62,17 +62,17 @@ namespace FreeSql.SqlServer {
} }
var left = ExpressionLambdaToSql(exp.Expression, _tables, _selectColumnMap, tbtype, isQuoteName); var left = ExpressionLambdaToSql(exp.Expression, _tables, _selectColumnMap, tbtype, isQuoteName);
switch (exp.Member.Name) { switch (exp.Member.Name) {
case "Days": return $"(({left}) div {(long)1000000 * 60 * 60 * 24})"; case "Days": return $"floor(({left}) / {60 * 60 * 24})";
case "Hours": return $"(({left}) div {(long)1000000 * 60 * 60} mod 24)"; case "Hours": return $"floor(({left}) / {60 * 60} % 24)";
case "Milliseconds": return $"(({left}) div 1000 mod 1000)"; case "Milliseconds": return $"(cast({left} as bigint) * 1000)";
case "Minutes": return $"(({left}) div {(long)1000000 * 60} mod 60)"; case "Minutes": return $"floor(({left}) / 60 % 60)";
case "Seconds": return $"(({left}) div 1000000 mod 60)"; case "Seconds": return $"(({left}) % 60)";
case "Ticks": return $"(({left}) * 10)"; case "Ticks": return $"(cast({left} as bigint) * 10000000)";
case "TotalDays": return $"(({left}) / {(long)1000000 * 60 * 60 * 24})"; case "TotalDays": return $"(({left}) / {60 * 60 * 24})";
case "TotalHours": return $"(({left}) / {(long)1000000 * 60 * 60})"; case "TotalHours": return $"(({left}) / {60 * 60})";
case "TotalMilliseconds": return $"(({left}) / 1000)"; case "TotalMilliseconds": return $"(cast({left} as bigint) * 1000)";
case "TotalMinutes": return $"(({left}) / {(long)1000000 * 60})"; case "TotalMinutes": return $"(({left}) / 60)";
case "TotalSeconds": return $"(({left}) / 1000000)"; case "TotalSeconds": return $"({left})";
} }
return null; return null;
} }
@ -162,20 +162,20 @@ namespace FreeSql.SqlServer {
var left = ExpressionLambdaToSql(exp.Object, _tables, _selectColumnMap, tbtype, isQuoteName); var left = ExpressionLambdaToSql(exp.Object, _tables, _selectColumnMap, tbtype, isQuoteName);
var args1 = exp.Arguments.Count == 0 ? null : ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName); var args1 = exp.Arguments.Count == 0 ? null : ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName);
switch (exp.Method.Name) { switch (exp.Method.Name) {
case "Add": return $"dateadd(millisecond, {args1} / 1000, {left})"; case "Add": return $"dateadd(second, {args1}, {left})";
case "AddDays": return $"dateadd(day, {args1}, {left})"; case "AddDays": return $"dateadd(day, {args1}, {left})";
case "AddHours": return $"dateadd(hour, {args1}, {left})"; case "AddHours": return $"dateadd(hour, {args1}, {left})";
case "AddMilliseconds": return $"dateadd(millisecond, {args1}, {left})"; case "AddMilliseconds": return $"dateadd(second, {args1} / 1000, {left})";
case "AddMinutes": return $"dateadd(minute, {args1}, {left})"; case "AddMinutes": return $"dateadd(minute, {args1}, {left})";
case "AddMonths": return $"dateadd(month, {args1}, {left})"; case "AddMonths": return $"dateadd(month, {args1}, {left})";
case "AddSeconds": return $"dateadd(second, {args1}, {left})"; case "AddSeconds": return $"dateadd(second, {args1}, {left})";
case "AddTicks": return $"dateadd(millisecond, {args1} / 10000, {left})"; case "AddTicks": return $"dateadd(second, {args1} / 10000000, {left})";
case "AddYears": return $"dateadd(year, {args1}, {left})"; case "AddYears": return $"dateadd(year, {args1}, {left})";
case "Subtract": case "Subtract":
if (exp.Arguments[0].Type.FullName == "System.DateTime" || exp.Arguments[0].Type.GenericTypeArguments.FirstOrDefault()?.FullName == "System.DateTime") if (exp.Arguments[0].Type.FullName == "System.DateTime" || exp.Arguments[0].Type.GenericTypeArguments.FirstOrDefault()?.FullName == "System.DateTime")
return $"(datediff(millisecond, {args1}, {left}) * 1000)"; return $"datediff(second, {args1}, {left})";
if (exp.Arguments[0].Type.FullName == "System.TimeSpan" || exp.Arguments[0].Type.GenericTypeArguments.FirstOrDefault()?.FullName == "System.TimeSpan") if (exp.Arguments[0].Type.FullName == "System.TimeSpan" || exp.Arguments[0].Type.GenericTypeArguments.FirstOrDefault()?.FullName == "System.TimeSpan")
return $"dateadd(millisecond, {args1} / -1000, {left})"; return $"dateadd(second, {args1} * -1, {left})";
break; break;
case "Equals": return $"({left} = {ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)})"; case "Equals": return $"({left} = {ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)})";
case "CompareTo": return $"(({left}) - ({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)}))"; case "CompareTo": return $"(({left}) - ({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)}))";
@ -188,12 +188,12 @@ namespace FreeSql.SqlServer {
switch (exp.Method.Name) { switch (exp.Method.Name) {
case "Compare": return $"(({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)}) - ({ExpressionLambdaToSql(exp.Arguments[1], _tables, _selectColumnMap, tbtype, isQuoteName)}))"; case "Compare": return $"(({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)}) - ({ExpressionLambdaToSql(exp.Arguments[1], _tables, _selectColumnMap, tbtype, isQuoteName)}))";
case "Equals": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} = {ExpressionLambdaToSql(exp.Arguments[1], _tables, _selectColumnMap, tbtype, isQuoteName)})"; case "Equals": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} = {ExpressionLambdaToSql(exp.Arguments[1], _tables, _selectColumnMap, tbtype, isQuoteName)})";
case "FromDays": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * {(long)1000000 * 60 * 60 * 24})"; case "FromDays": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * {60 * 60 * 24})";
case "FromHours": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * {(long)1000000 * 60 * 60})"; case "FromHours": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * {60 * 60})";
case "FromMilliseconds": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * 1000)"; case "FromMilliseconds": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} / 1000)";
case "FromMinutes": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * {(long)1000000 * 60})"; case "FromMinutes": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * 60)";
case "FromSeconds": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} * 1000000)"; case "FromSeconds": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)})";
case "FromTicks": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} / 10)"; case "FromTicks": return $"({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} / 10000000)";
case "Parse": return $"cast({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} as bigint)"; case "Parse": return $"cast({ExpressionLambdaToSql(exp.Arguments[0], _tables, _selectColumnMap, tbtype, isQuoteName)} as bigint)";
case "ParseExact": case "ParseExact":
case "TryParse": case "TryParse":