set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go
------------------------------------
--用途:查询记录信息
--项目名称:CodematicDemo
--说明:
--时间:2009-11-23 15:52:59
------------------------------------
ALTER PROCEDURE [dbo].[Proc_TRANSIT_GetList]
@ExchangeIdentity varchar(15),--网元名称
@TimeForStartOfCharge varchar(24),--开始时间
@TimeForStopOfCharge varchar(24),--结束时间
@UID INT,
@CM VARCHAR(100)
AS
DECLARE @SQLSTRING VARCHAR(MAX)
declare @sqlstr varchar(2000)
Declare @column varchar(24)SET @sqlstr = ''
DECLARE LCURSOR CURSOR FOR SELECT ColumnName FROM CDRConfig WHERE UserID = @UID and CallModule = @CM OPEN LCURSORFETCH NEXT FROM LCURSOR INTO @columnWHILE @@FETCH_STATUS = 0
BEGIN
IF @sqlstr = ''
SET @sqlstr = @column
ELSE
SET @sqlstr = @sqlstr+','+@columnFETCH NEXT FROM LCURSOR INTO @columnEND
DEALLOCATE LCURSOR
--PRINT @SQLSTR
SET @SQLSTRING = 'SELECT '
SET @SQLSTR = @SQLSTR+' FROM '+@CM
SET @sqlstr = @SQLSTR + 'WHERE substring(''ExchangeIdentity'',0,charindex(63,''ExchangeIdentity''))='@ExchangeIdentityand'(dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStartOfCharge'') between + '@TimeForStartOfCharge + and+ @TimeForStopOfCharge+ ')
and (dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStopOfCharge'') between '+ @TimeForStartOfCharge + and + @TimeForStopOfCharge')'
SET @SQLSTRING = @SQLSTRING+@sqlstrEXEC @SQLSTRING就想问下 SET @sqlstr = @SQLSTR + 'WHERE substring(''ExchangeIdentity'',0,charindex(63,''ExchangeIdentity''))='@ExchangeIdentityand'(dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStartOfCharge'') between + '@TimeForStartOfCharge + and+ @TimeForStopOfCharge+ ')
and (dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStopOfCharge'') between '+ @TimeForStartOfCharge + and + @TimeForStopOfCharge')'这段里面的 ‘’到底要怎么加...都快加疯~..求高人搭救
set QUOTED_IDENTIFIER ON
go
------------------------------------
--用途:查询记录信息
--项目名称:CodematicDemo
--说明:
--时间:2009-11-23 15:52:59
------------------------------------
ALTER PROCEDURE [dbo].[Proc_TRANSIT_GetList]
@ExchangeIdentity varchar(15),--网元名称
@TimeForStartOfCharge varchar(24),--开始时间
@TimeForStopOfCharge varchar(24),--结束时间
@UID INT,
@CM VARCHAR(100)
AS
DECLARE @SQLSTRING VARCHAR(MAX)
declare @sqlstr varchar(2000)
Declare @column varchar(24)SET @sqlstr = ''
DECLARE LCURSOR CURSOR FOR SELECT ColumnName FROM CDRConfig WHERE UserID = @UID and CallModule = @CM OPEN LCURSORFETCH NEXT FROM LCURSOR INTO @columnWHILE @@FETCH_STATUS = 0
BEGIN
IF @sqlstr = ''
SET @sqlstr = @column
ELSE
SET @sqlstr = @sqlstr+','+@columnFETCH NEXT FROM LCURSOR INTO @columnEND
DEALLOCATE LCURSOR
--PRINT @SQLSTR
SET @SQLSTRING = 'SELECT '
SET @SQLSTR = @SQLSTR+' FROM '+@CM
SET @sqlstr = @SQLSTR + 'WHERE substring(''ExchangeIdentity'',0,charindex(63,''ExchangeIdentity''))='@ExchangeIdentityand'(dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStartOfCharge'') between + '@TimeForStartOfCharge + and+ @TimeForStopOfCharge+ ')
and (dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStopOfCharge'') between '+ @TimeForStartOfCharge + and + @TimeForStopOfCharge')'
SET @SQLSTRING = @SQLSTRING+@sqlstrEXEC @SQLSTRING就想问下 SET @sqlstr = @SQLSTR + 'WHERE substring(''ExchangeIdentity'',0,charindex(63,''ExchangeIdentity''))='@ExchangeIdentityand'(dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStartOfCharge'') between + '@TimeForStartOfCharge + and+ @TimeForStopOfCharge+ ')
and (dbo.Fn_Portfolio(''DateForStartOfCharge'',''TimeForStopOfCharge'') between '+ @TimeForStartOfCharge + and + @TimeForStopOfCharge')'这段里面的 ‘’到底要怎么加...都快加疯~..求高人搭救
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SET @SQLSTRING = 'SELECT '
SET @SQLSTR = @SQLSTR+' FROM '+@CM
SET @sqlstr = @SQLSTR + 'WHERE substring(ExchangeIdentity,0,charindex(63,ExchangeIdentity))='@ExchangeIdentityand'(dbo.Fn_Portfolio(DateForStartOfCharge,TimeForStartOfCharge) between + '+@TimeForStartOfCharge + 'and'+ @TimeForStopOfCharge+ ')
and (dbo.Fn_Portfolio(DateForStartOfCharge,TimeForStopOfCharge) between '+ @TimeForStartOfCharge +' and '+ @TimeForStopOfCharge')'
SET @SQLSTRING = @SQLSTRING+@sqlstrEXEC (@SQLSTRING)
DateForStartOfCharge
如果是字段的話不要用引號
在执行前,可以print @sql ,来查看sql 语句的准确性
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 几个是几个相关实例:--1. 使用 EXEC 实现的动态参数存储过程
CREATE PROC p_test
@para1 varchar(10)=null,
@para2 varchar(10)=null,
@para3 varchar(10)=null,
@para4 varchar(10)=null
AS
SET NOCOUNT ON
DECLARE @sql varchar(8000)
SET @sql='SELECT * FROM tbname WHERE 1=1'
IF @para1 IS NOT NULL
SET @sql=@sql+' AND col1='''+@para1+''''
IF @para2 IS NOT NULL
SET @sql=@sql+' AND col2='''+@para2+''''
IF @para3 IS NOT NULL
SET @sql=@sql+' AND col3='''+@para3+''''
IF @para4 IS NOT NULL
SET @sql=@sql+' AND col4='''+@para4+''''
EXEC(@sql)
GO
/*======================================================*/--2. 使用 sp_executesql 实现的动态参数存储过程
CREATE PROC p_test
@para1 varchar(10)=null,
@para2 datetime=null,
@para3 varchar(10)=null,
@para4 int=null
AS
SET NOCOUNT ON
DECLARE @sql nvarchar(4000)
SET @sql='SELECT * FROM tbname WHERE 1=1'
+CASE WHEN @para1 IS NULL THEN '' ELSE ' AND col1=@para1' END
+CASE WHEN @para2 IS NULL THEN '' ELSE ' AND col2=@para2' END
+CASE WHEN @para3 IS NULL THEN '' ELSE ' AND col3=@para3' END
+CASE WHEN @para4 IS NULL THEN '' ELSE ' AND col4=@para4' END
EXEC sp_executesql @sql,N'
@para1 varchar(10)=null,
@para2 datetime=null,
@para3 varchar(10)=null,
@para4 int=null
',@para1,@para2,@para3,@para4
GO
/*======================================================*/--3. 不使用动态 Transact-SQL 语句实现的动态参数存储过程
CREATE PROC p_test
@para1 varchar(10)=null,
@para2 datetime=null,
@para3 varchar(10)=null,
@para4 int=null
AS
SET NOCOUNT ON
SELECT * FROM tbname
WHERE (@para1 IS NULL OR col1=@para1)
AND (@para2 IS NULL OR col2=@para2)
AND (@para3 IS NULL OR col3=@para3)
AND (@para4 IS NULL OR col4=@para4)
关键一点,如果是字符串,需要单独加4个单引号来转义。例如: ''''+'ABCD'+''''最终Print出来应该是'ABCD'。
用print 一句一句显示出来,看看到底哪一句不对,这个太多了,没有数据,乱。。
@para1 varchar(10)=null,
@para2 datetime=null,
@para3 varchar(10)=null,
@para4 int=null
AS
SET NOCOUNT ON
DECLARE @sql nvarchar(4000)
SET @sql='SELECT * FROM tbname WHERE 1=1'
+CASE WHEN @para1 IS NULL THEN '' ELSE ' AND col1=@para1' END
+CASE WHEN @para2 IS NULL THEN '' ELSE ' AND col2=@para2' END
+CASE WHEN @para3 IS NULL THEN '' ELSE ' AND col3=@para3' END
+CASE WHEN @para4 IS NULL THEN '' ELSE ' AND col4=@para4' END
EXEC sp_executesql @sql,N'
@para1 varchar(10)=null,
@para2 datetime=null,
@para3 varchar(10)=null,
@para4 int=null
',@para1,@para2,@para3,@para4
GO
[/SQL Code]