sql 存储过程批量删除数据
sql 存储过程批量删除数据<div class="postText">Create PROCEDURE Batch_Delete @TableName nvarchar(100), --表名 @FieldName nvarchar(100), --删除字段名 @DelCharIndexID nvarchar(1000)as DECLARE @PointerPrev int DECLARE @PointerCurr int DECLARE @TId NVARCHAR(50), @sql NVARCHAR(1000) Set @PointerPrev = 1 while (@PointerPrev < LEN(@DelCharIndexID)) Begin Set @PointerCurr = CharIndex(',',@DelCharIndexID,@PointerPrev) if(@PointerCurr>0) Begin SET @TId = cast(SUBSTRING(@DelCharIndexID, @PointerPrev, @PointerCurr - @PointerPrev) As NVARCHAR(50)) SET @sql = 'Delete From '+ @TableName +' Where '+ @FieldName + ' = '''+ @TID+'''' Exec(@Sql) Print('======='+@TId+'=======sql'+@Sql) SET @PointerPrev = @PointerCurr + 1 Print(@PointerPrev) End else Begin Print('break') Break End End --删除最后一个,因为最后一个后面没有逗号,所以在循环中跳出,需另外再删除 SET @TId = cast(SUBSTRING(@DelCharIndexID, @PointerPrev, LEN(@DelCharIndexID) - @PointerPrev + 1) As NVARCHAR(50)) SET @sql = 'Delete From '+ @TableName +' Where '+ @FieldName + ' = '''+ @TID+'''' Exec(@Sql) Print('======='+@TId+'=======sql'+@Sql) GO
页:
[1]