SQL存储过程生成流水号
2008-05-18 11:53
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首先在数据库中创建一个存放流水号的表
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE TABLE [dbo].[NumSeq] (
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[Cate] [varchar] (2) NOT NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[DateNo] [varchar] (4) NOT NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[Seq] [int] NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[CrTime] [datetime] NOT NULL
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
上面的代码中,Cate 字段为流水号的头,可以在下面的存储过程中用参数的方式传入,我的定义是2个字符,这个可以根据具体需要更改
DateNo 字段为获取日期信息
Seq 字段为流水号,但最终生成的流水号是这三个字段的相加
2,创建存储过程
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE PROC dpPMT_SGetMaintainSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
@MaintainCate VARCHAR(2)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
AS
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
--***********************累加编号*************************************************
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
DECLARE @MaintainNo VARCHAR(12)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
IF NOT EXISTS(SELECT
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
*
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
FROM
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DATEDIFF(DAY,CrTime,GETDATE())=0)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
BEGIN
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
INSERT INTO
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq(Cate,DateNo,Seq)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
values(@MaintainCate,RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE())),0)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
END
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
ELSE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
BEGIN
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
UPDATE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SET
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Seq=Seq+1
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DateNo=RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE()))
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
END
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
--************************组合编号***************************************************************
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SELECT
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
@MaintainNo=Cate+DateNo+REPLICATE('0',6-LEN(Seq))+CONVERT(VARCHAR(6),Seq)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
FROM
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DateNo=RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE()))
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SELECT @MaintainNo
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
这个存储过程最终输出的结果如:AA071031000001 前面两位是传入的参数,中间四位是年份的后两位和月,最后的六位为6位数字的流水号。您也可以修改上面的存储过程来生成符合您要求的流水号
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE TABLE [dbo].[NumSeq] (
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[Cate] [varchar] (2) NOT NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[DateNo] [varchar] (4) NOT NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[Seq] [int] NULL ,
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
[CrTime] [datetime] NOT NULL
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
上面的代码中,Cate 字段为流水号的头,可以在下面的存储过程中用参数的方式传入,我的定义是2个字符,这个可以根据具体需要更改
DateNo 字段为获取日期信息
Seq 字段为流水号,但最终生成的流水号是这三个字段的相加
2,创建存储过程
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
CREATE PROC dpPMT_SGetMaintainSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
@MaintainCate VARCHAR(2)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
AS
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
--***********************累加编号*************************************************
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
DECLARE @MaintainNo VARCHAR(12)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
IF NOT EXISTS(SELECT
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
*
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
FROM
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DATEDIFF(DAY,CrTime,GETDATE())=0)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
BEGIN
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
INSERT INTO
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq(Cate,DateNo,Seq)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
values(@MaintainCate,RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE())),0)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
END
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
ELSE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
BEGIN
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
UPDATE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SET
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Seq=Seq+1
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DateNo=RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE()))
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
END
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
--************************组合编号***************************************************************
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SELECT
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
@MaintainNo=Cate+DateNo+REPLICATE('0',6-LEN(Seq))+CONVERT(VARCHAR(6),Seq)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
FROM
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
NumSeq
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
WHERE
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
Cate=@MaintainCate AND DateNo=RIGHT(CONVERT(VARCHAR(4),YEAR(GETDATE())),2)+REPLICATE('0',2-LEN(MONTH(GETDATE())))+CONVERT(VARCHAR(2),MONTH(GETDATE()))
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
SELECT @MaintainNo
![](http://www.cnblogs.com/Images/OutliningIndicators/None.gif)
这个存储过程最终输出的结果如:AA071031000001 前面两位是传入的参数,中间四位是年份的后两位和月,最后的六位为6位数字的流水号。您也可以修改上面的存储过程来生成符合您要求的流水号
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