create proc test(
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
)AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='+@StateValue+',ChkDateTime='+'@ChkDateTime'+' Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)语法没问题啊
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
)AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='+@StateValue+',ChkDateTime='+'@ChkDateTime'+' Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)语法没问题啊
有语法错误!提示日期转换错误!
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='''+@StateValue+''',ChkDateTime='''+convert(varchar(30),@ChkDateTime,120)+''' Where id in ('+@InfoIDs+')'
exec(@sql)
...
@StateValue nvarchar(10),
@ChkDateTime datetimeAS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='+@StateValue+',ChkDateTime='''+@ChkDateTime+'''
Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)问题的原因就是'+'@ChkDateTime'而应该是ChkDateTime='''+@ChkDateTime+'''
@StateValue nvarchar(10),
@ChkDateTime datetimeAS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='+@StateValue+',ChkDateTime='''+@ChkDateTime+'''
Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)就是转换的问题ChkDateTime='''+@ChkDateTime+'''
@StateValue nvarchar(10),
@ChkDateTime datetimeAS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='''+@StateValue+''',ChkDateTime='''+convert(char(10),@ChkDateTime,120)+''' Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
)AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='+@StateValue+',ChkDateTime='''+@ChkDateTime+''' Where id in ('+@InfoIDs+')'
/* SET NOCOUNT ON */
exec(@sql)--Ft,应该加引号
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='''+@StateValue+''',ChkDateTime='''+convert(varchar(30),@ChkDateTime,120)+''' Where id in ('+@InfoIDs+')'
exec(@sql)
@InfoIDs nvarchar(500),
@StateValue nvarchar(10),
@ChkDateTime datetime
AS
declare @sql nvarchar(4000)
set @sql='update SiteRecords set RecordsChk='''+@StateValue+''',ChkDateTime='''+convert(varchar(30),@ChkDateTime,120)+''' Where id in ('+@InfoIDs+')'
exec(@sql)
1 :普通SQL语句可以用Exec执行 eg: Select * from tableName
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