CREATE PROCEDURE pl_chnl_num
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '+@BeginDate+' AND '+@EndDate+') AND (Card_ID = '+@Card_ID+') AND (Busi_ID = '+@Busi_ID+')'
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '+@BeginDate+' AND '+@EndDate+') AND (Busi_ID = '+@Busi_ID+')'
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO----------------------------------------------------------------------------------------
结果:
服务器: 消息 241,级别 16,状态 1,过程 pl_chnl_num,行 21
从字符串转换为 datetime 时发生语法错误。
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '+@BeginDate+' AND '+@EndDate+') AND (Card_ID = '+@Card_ID+') AND (Busi_ID = '+@Busi_ID+')'
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '+@BeginDate+' AND '+@EndDate+') AND (Busi_ID = '+@Busi_ID+')'
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO----------------------------------------------------------------------------------------
结果:
服务器: 消息 241,级别 16,状态 1,过程 pl_chnl_num,行 21
从字符串转换为 datetime 时发生语法错误。
CREATE PROCEDURE pl_chnl_num
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '''+@BeginDate+''' AND '''+@EndDate+''') AND (Card_ID = '+ cast(@Card_ID as varchar(100))+') AND (Busi_ID = '+ cast(@Busi_ID as varchar(100))+')'
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '''+@BeginDate+''' AND '''+@EndDate+''') AND (Busi_ID = '+ cast(@Busi_ID as varchar(100))+')'
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO
CREATE PROCEDURE pl_chnl_num
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '''+@BeginDate+''' AND '''+@EndDate+''') AND (Card_ID = '+@Card_ID+') AND (Busi_ID = '+@Busi_ID+')'
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '''+@BeginDate+''' AND '''+@EndDate+''') AND (Busi_ID = '+@Busi_ID+')'
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO
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
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '''+Convert(Varchar(10),@BeginDate,120)+' AND '+Convert(Varchar(10),@EndDate,120)+') AND (Card_ID = '+Rtrim(@Card_ID)+') AND (Busi_ID = '+Rtrim(@Busi_ID)+')' --這裡
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '+Convert(Varchar(10),@BeginDate,120)+' AND '+Convert(Varchar(10),@EndDate,120)+') AND (Busi_ID = '+Rtrim(@Busi_ID)+')' --這裡
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO
CREATE PROCEDURE pl_chnl_num
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '''+Convert(Varchar(10),@BeginDate,120)+''' AND '''+Convert(Varchar(10),@EndDate,120)+''') AND (Card_ID = '+Rtrim(@Card_ID)+') AND (Busi_ID = '+Rtrim(@Busi_ID)+')' --這裡
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '''+Convert(Varchar(10),@BeginDate,120)+''' AND '''+Convert(Varchar(10),@EndDate,120)+''') AND (Busi_ID = '+Rtrim(@Busi_ID)+')' --這裡
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO
(2)日期需要用单引号。
(3)日期型需要先转换为字符型,用cast()或convert()。
(4)数字型需要先转换为字符型。
CREATE PROCEDURE pl_chnl_num
@TableName varchar(30),
@TableName2 varchar(30),
@BeginDate datetime,
@EndDate datetime,
@Busi_ID int,
@NOCard bit = 0,
@Card_ID int = 0
AS
declare @Reg_ID varchar(30),@sql_str varchar(200)
create table #temp(chnl_num int)
create table #tempReg(Reg_ID varchar(30))IF ( @NOCard=1 )
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+@TableName+'
WHERE (Reg_Date BETWEEN '''+convert(varchar(20),@BeginDate,120)+''' AND '''+convert(varchar(20),@EndDate,120)+''') AND (Card_ID = '+ cast(@Card_ID as varchar(100))+') AND (Busi_ID = '+ cast(@Busi_ID as varchar(100))+')'
END
ELSE
BEGIN
set @sql_str = 'insert into #tempReg(Reg_ID) SELECT Reg_ID FROM '+ @TableName +'
WHERE (Reg_Date BETWEEN '''+convert(varchar(20),@BeginDate,120)+''' AND '''+convert(varchar(20),@EndDate,120)+''') AND (Busi_ID = '+ cast(@Busi_ID as varchar(100))+')'
ENDEXEC(@sql_str)
SELECT * from #tempReg
GO