declare @sql varchar(8000)
declare @sid varchar(8000)
set @sid='''14F3C393-BAB3-4335-B167-9DB58D2B6473'''
SET @SQL='SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('+@sID+')'
--SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('14F3C393-BAB3-4335-B167-9DB58D2B6473')
EXEC(@SQL)
print (@SQL)
DECLARE Apply_Cursor CURSOR FOR
SELECT * FROM #TEMP_TABLE
select * from #TEMP_TABLE
OPEN Apply_Cursor
CLOSE Apply_Cursor
DEALLOCATE Apply_Cursor
drop table #TEMP_TABLE
这个会报错
对象名 '#TEMP_TABLE' 无效。*******************************
declare @sql varchar(8000)
declare @sid varchar(8000)
set @sid='''14F3C393-BAB3-4335-B167-9DB58D2B6473'''
--SET @SQL='SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('+@sID+')'
SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('14F3C393-BAB3-4335-B167-9DB58D2B6473')
--EXEC(@SQL)
print (@SQL)
DECLARE Apply_Cursor CURSOR FOR
SELECT * FROM #TEMP_TABLE
select * from #TEMP_TABLE
OPEN Apply_Cursor
CLOSE Apply_Cursor
DEALLOCATE Apply_Cursor
drop table #TEMP_TABLE
这个就正确
唯一的区别就是我第一个是用EXEC来执行的SQL语句
declare @sid varchar(8000)
set @sid='''14F3C393-BAB3-4335-B167-9DB58D2B6473'''
SET @SQL='SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('+@sID+')'
--SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('14F3C393-BAB3-4335-B167-9DB58D2B6473')
EXEC(@SQL)
print (@SQL)
DECLARE Apply_Cursor CURSOR FOR
SELECT * FROM #TEMP_TABLE
select * from #TEMP_TABLE
OPEN Apply_Cursor
CLOSE Apply_Cursor
DEALLOCATE Apply_Cursor
drop table #TEMP_TABLE
这个会报错
对象名 '#TEMP_TABLE' 无效。*******************************
declare @sql varchar(8000)
declare @sid varchar(8000)
set @sid='''14F3C393-BAB3-4335-B167-9DB58D2B6473'''
--SET @SQL='SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('+@sID+')'
SELECT ASC_CD,DT,MATERIAL_ID,STOCK_FLAG,QTY,MODIFY_DESC,LSTOREHOUSE,LCABINET,LCOL,LFLOOR INTO #TEMP_TABLE FROM STOCK_IN_APPLY WHERE STOCK_IN_APPLY_ID IN ('14F3C393-BAB3-4335-B167-9DB58D2B6473')
--EXEC(@SQL)
print (@SQL)
DECLARE Apply_Cursor CURSOR FOR
SELECT * FROM #TEMP_TABLE
select * from #TEMP_TABLE
OPEN Apply_Cursor
CLOSE Apply_Cursor
DEALLOCATE Apply_Cursor
drop table #TEMP_TABLE
这个就正确
唯一的区别就是我第一个是用EXEC来执行的SQL语句
Exec('select * from tableName')
Exec sp_executesql N'select * from tableName' -- 请注意字符串前一定要加N 2:字段名,表名,数据库名之类作为变量时,必须用动态SQL eg:
declare @fname varchar(20)
set @fname = 'FiledName'
Select @fname from tableName -- 错误,不会提示错误,但结果为固定值FiledName,并非所要。
Exec('select ' + @fname + ' from tableName') -- 请注意 加号前后的 单引号的边上加空格 当然将字符串改成变量的形式也可
declare @fname varchar(20)
set @fname = 'FiledName' --设置字段名 declare @s varchar(1000)
set @s = 'select ' + @fname + ' from tableName'
Exec(@s) -- 成功
exec sp_executesql @s -- 此句会报错 declare @s Nvarchar(1000) -- 注意此处改为nvarchar(1000)
set @s = 'select ' + @fname + ' from tableName'
Exec(@s) -- 成功
exec sp_executesql @s -- 此句正确 3. 输出参数
declare @num int,
@sqls nvarchar(4000)
set @sqls='select count(*) from tableName'
exec(@sqls)
--如何将exec执行结果放入变量中? declare @num int,
@sqls nvarchar(4000)
set @sqls='select @a=count(*) from tableName '
exec sp_executesql @sqls,N'@a int output',@num output
select @num