我在解析器里执行过。没问题也可以出来结果。但把它拷贝到sql2005建的一个维护计划拖了一个t-sql语句执行计划里一执行就
把里面所有的单引号变成双引号啦?怎么回事呀
例如:select sum(case when Type='A' then 1 else 0 end) from .........这样子 执行时
里面只要有单引号的全变成双引号。怎么回事。我在查询分析器里可以正常执行的语句。一把它拷贝进T-SQL运行时就报错。单引号变双号sum(case when Type=''A'' then 1 else 0 end) 这样啦。所以SQL语句报错,怎么回事?高人来解释一下怎么解决.我在维护历史中查看它的报错信息时看到的。
我把它搞成双引号拷贝进去,它再变成4引号。3引号再变成6引号。我都。
把该SQL赋值成字符串也不成。照样变双号
把里面所有的单引号变成双引号啦?怎么回事呀
例如:select sum(case when Type='A' then 1 else 0 end) from .........这样子 执行时
里面只要有单引号的全变成双引号。怎么回事。我在查询分析器里可以正常执行的语句。一把它拷贝进T-SQL运行时就报错。单引号变双号sum(case when Type=''A'' then 1 else 0 end) 这样啦。所以SQL语句报错,怎么回事?高人来解释一下怎么解决.我在维护历史中查看它的报错信息时看到的。
我把它搞成双引号拷贝进去,它再变成4引号。3引号再变成6引号。我都。
把该SQL赋值成字符串也不成。照样变双号
如果是动态SQL,参考下面的:动态sql语句基本语法
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
set @sqlselect = N'insert into admusic_dayandhourstatistics(Bannerid,ATFrom,Zoneid,VisiteDate,AdViewCount,AuditionCount,AdClickCount,RecordTypeID,PriceID)
select bannerid,at, zoneid,date,
acount = sum(case when Type=N'A' then 1 else 0 end),
bcount = sum(case when Type=N'B' then 1 else 0 end),
ccount = sum(case when Type=N'C' then 1 else 0 end),1,1
from (
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N' '+cast(datepart(hh,timestamp) as varchar)+N':00' as Date,N'A' as Type from admusic_adviews
where timestamp>convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-2 as varchar)+N':00'
and timestamp<convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-1 as varchar)+N':00'
union all
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N' '+cast(datepart(hh,timestamp) as varchar)+N':00' as Date,N'B' as Type from admusic_detail
where timestamp>convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-2 as varchar)+N':00'
and timestamp<convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-1 as varchar)+N':00'
union all
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N' '+cast(datepart(hh,timestamp) as varchar)+N':00' as Date,N'C' as Type from admusic_adclicks
where timestamp>convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-2 as varchar)+N':00'
and timestamp<convert(varchar(10),getdate(),120)+N' '+cast(datepart(hh,getdate())-1 as varchar)+N':00'
) testtable
group by zoneid,bannerid,at,date'
exec(@sqlselect)
你看上面这是我拷贝进去的。
declare @sqlselect varchar(3000)
set @sqlselect = N''insert into admusic_dayandhourstatistics(Bannerid,ATFrom,Zoneid,VisiteDate,AdViewCount,AuditionCount,AdClickCount,RecordTypeID,PriceID)
select bannerid,at, zoneid,date,
acount = sum(case when Type=N''A'' then 1 else 0 end),
bcount = sum(case when Type=N''B'' then 1 else 0 end),
ccount = sum(case when Type=N''C'' then 1 else 0 end),1,1
from (
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N'' ''+cast(datepart(hh,timestamp) as varchar)+N'':00'' as Date,N''A'' as Type from admusic_adviews
where timestamp>convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-2 as varchar)+N'':00''
and timestamp<convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-1 as varchar)+N'':00''
union all
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N'' ''+cast(datepart(hh,timestamp) as varchar)+N'':00'' as Date,N''B'' as Type from admusic_detail
where timestamp>convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-2 as varchar)+N'':00''
and timestamp<convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-1 as varchar)+N'':00''
union all
select zoneid,bannerid,at,CONVERT(varchar(8) ,dateadd(hour,-2,timestamp), 112 )+N'' ''+cast(datepart(hh,timestamp) as varchar)+N'':00'' as Date,N''C'' as Type from admusic_adclicks
where timestamp>convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-2 as varchar)+N'':00''
and timestamp<convert(varchar(10),getdate(),120)+N'' ''+cast(datepart(hh,getdate())-1 as varchar)+N'':00''
) testtable
group by zoneid,bannerid,at,date''
exec(@sqlselect)
这是错误日志里的