USE [TakeOut]
GO
/****** Object: StoredProcedure [dbo].[ShopList_GetList_PagedCount] Script Date: 06/19/2010 15:55:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[ShopList_GetList_PagedCount]
(
@HasActivity bit,
@HasCoupon bit,
@HasPicture bit,
@ShopName nvarchar(100)
)
as
declare @temwhere varchar(100)
if(@HasActivity=1)
begin
set @temwhere = ' and HasActivity=' + CONVERT(varchar(1),@HasActivity)
end
if(@HasCoupon=1)
begin
set @temwhere = @temwhere + ' and HasCoupon=' +CONVERT(varchar(1),@HasCoupon)
end
if(@HasPicture=1)
begin
set @temwhere = @temwhere + ' and HasPicture=' + CONVERT(varchar(1),@HasPicture)
end
DECLARE @TempID int
SELECT @TempID = count(*) from ShopList where ShopName like '%' + RTRIM(@shopName) + '%' + @temwhere
IF @TempID is null
RETURN 0
ELSE
RETURN @TempID
GO
/****** Object: StoredProcedure [dbo].[ShopList_GetList_PagedCount] Script Date: 06/19/2010 15:55:20 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER procedure [dbo].[ShopList_GetList_PagedCount]
(
@HasActivity bit,
@HasCoupon bit,
@HasPicture bit,
@ShopName nvarchar(100)
)
as
declare @temwhere varchar(100)
if(@HasActivity=1)
begin
set @temwhere = ' and HasActivity=' + CONVERT(varchar(1),@HasActivity)
end
if(@HasCoupon=1)
begin
set @temwhere = @temwhere + ' and HasCoupon=' +CONVERT(varchar(1),@HasCoupon)
end
if(@HasPicture=1)
begin
set @temwhere = @temwhere + ' and HasPicture=' + CONVERT(varchar(1),@HasPicture)
end
DECLARE @TempID int
SELECT @TempID = count(*) from ShopList where ShopName like '%' + RTRIM(@shopName) + '%' + @temwhere
IF @TempID is null
RETURN 0
ELSE
RETURN @TempID
SELECT @TempID = count(*) from ShopList where ShopName like '%' + RTRIM(@shopName) + '%' + @temwhere
IF @TempID is null
RETURN 0
ELSE
RETURN @TempID
改成可执行的exec('')这种的
DECLARE @TempID int
set @sql='SELECT @TempID = count(*) from ShopList where ShopName like ''% + RTRIM('+@shopName+') + %''' + @temwhere
exec sp_executesql @sql,N'@TempID int output',@TempID output
IF @TempID is null
RETURN 0
ELSE
RETURN @TempID
--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
(
@HasActivity BIT,
@HasCoupon BIT,
@HasPicture BIT,
@ShopName NVARCHAR(100),
@TempID INT OUT
)
AS
DECLARE @temwhere NVARCHAR(100),@s NVARCHAR(MAX)
SET @temwhere=' WHERE 1=1 '
IF (@HasActivity=1)
BEGIN
SET @temwhere = ' and HasActivity='+CONVERT(VARCHAR(1), @HasActivity)
END
IF (@HasCoupon=1)
BEGIN
SET @temwhere = @temwhere+' and HasCoupon='+CONVERT(VARCHAR(1), @HasCoupon)
END
IF (@HasPicture=1)
BEGIN
SET @temwhere = @temwhere+' and HasPicture='+CONVERT(VARCHAR(1), @HasPicture)
END
SET @s = '
SELECT @TempID = COUNT(*)
FROM ShopList
WHERE ShopName LIKE ''%'+RTRIM(@shopName)+'%'''+@temwhere
EXEC sp_executesql @s,N'@TempID INT OUT',@TempID OUT
GO--调用:
DECLARE @TempID INT
EXEC [dbo].[ShopList_GetList_PagedCount] 1,1,1,'ShopName',@TempID OUT
SELECT @TempID
ALTER PROCEDURE [dbo].[ShopList_GetList_PagedCount]
(
@HasActivity BIT,
@HasCoupon BIT,
@HasPicture BIT,
@ShopName NVARCHAR(100),
@TempID INT OUT
)
AS
DECLARE @temwhere NVARCHAR(100),@s NVARCHAR(MAX)
IF (@HasActivity=1)
BEGIN
SET @temwhere = ' and HasActivity='+CONVERT(VARCHAR(1), @HasActivity)
END
IF (@HasCoupon=1)
BEGIN
SET @temwhere = @temwhere+' and HasCoupon='+CONVERT(VARCHAR(1), @HasCoupon)
END
IF (@HasPicture=1)
BEGIN
SET @temwhere = @temwhere+' and HasPicture='+CONVERT(VARCHAR(1), @HasPicture)
END
SET @s = '
SELECT @TempID = COUNT(*)
FROM ShopList
WHERE ShopName LIKE ''%'+RTRIM(@shopName)+'%'''+@temwhere
EXEC sp_executesql @s,N'@TempID INT OUT',@TempID OUT
GO--调用:
DECLARE @TempID INT
EXEC [dbo].[ShopList_GetList_PagedCount] 1,1,1,'ShopName',@TempID OUT
SELECT @TempID