自定义函数只能第一次插入数据

[tanyuqiong]

CREATE VIEW v_GetDate
as
select dt=Convert(Char(6),getdate(),12)


Create function f_nextBH()
RETURNS char(14)
AS
BEGIN
dECLARE @dt char(6)
select @dt=dt from v_GetDate
return (
select 'TS'+@dt+right(1000001+ISNULL(RIGHT(MAX(TSPKID),6),0),6)
FROM Clientts with(xlock,paglock)
where tspkid like @dt+'%'
)
end

create table clientts
(
tspkid char(14) primary key defult dbo.f_NextBH(),
COL INT
)

插入数据后,tspkid结果为
TS060909000001
第二此插入就报错呀
Server: Msg 2627, Level 14, State 1, Line 1
Violation of PRIMARY KEY constraint 'PK__clientts__50C5FA01'. Cannot insert duplicate key in object 'clientts'.
The statement has been terminated.

[zicxc]

去掉
with(xlock,paglock)

[hellowork]

把
select 'TS'+@dt+right(1000001+ISNULL(RIGHT(MAX(TSPKID),6),0),6)
中的
ISNULL(RIGHT(MAX(TSPKID),6),0)
改为:
ISNULL(RIGHT(MAX(TSPKID),6),0) + 1

[tanyuqiong]

去掉
with(xlock,paglock)
报同样的错误呀....

[tanyuqiong]

To: hellowork(一两清风) 还是报错呀
修改后的如下:
Create function f_nextBH()
RETURNS char(14)
AS
BEGIN
dECLARE @dt char(6)
select @dt=dt from v_GetDate
return (
select 'TS'+@dt+right(1000001+ISNULL(RIGHT(MAX(TSPKID),6),0)+1,6)

FROM Clientts with(xlock,paglock)
where tspkid like @dt+'%'
)
end

[hellowork]

把select 'TS'+@dt+right(1000001+ISNULL(RIGHT(MAX(TSPKID),6),0)+1,6)
改为:
select 'TS'+@dt+right(1000001+RIGHT(isnull(MAX(TSPKID),0) + 1,6),6)
如果希望生成的ID以1开始,请把1000001改为1000000.

[dream_xyz]

那本邹建的书里也有这个实例啊，参考一下
CREATE VIEW v_GetDate
AS
SELECT dt=CONVERT(CHAR(6),GETDATE(),12)
GO

--得到新编号的函数
CREATE FUNCTION f_NextBH()
RETURNS char(12)
AS
BEGIN
DECLARE @dt CHAR(6)
SELECT @dt=dt FROM v_GetDate
RETURN(
SELECT @dt+RIGHT(1000001+ISNULL(RIGHT(MAX(BH),6),0),6)
FROM tb WITH(XLOCK,PAGLOCK)
WHERE BH like @dt+'%')
END
GO

--在表中应用函数
CREATE TABLE tb(
BH char(12) PRIMARY KEY DEFAULT dbo.f_NextBH(),
col int)

--插入资料
INSERT tb(col) VALUES(1)
INSERT tb(col) VALUES(2)
INSERT tb(col) VALUES(3)
DELETE tb WHERE col=3
INSERT tb(col) VALUES(4)
INSERT tb(BH,col) VALUES(dbo.f_NextBH(),14)

--显示结果
SELECT * FROM tb
/*--结果
BH col
------------------- -----------
050405000001 1
050405000002 2
050405000003 4
050405000004 14
--*/

[free_pop2k]

把你写入数据的语句写出来。好像你是写入相同的值。

[十一月猪]

RETURN(
SELECT @dt+RIGHT(1000001+ISNULL(RIGHT(MAX(BH),6),0),6)
FROM tb WITH(XLOCK,PAGLOCK)
WHERE BH like @dt+'%')

修改为:


RETURN(
SELECT @dt+RIGHT(1000001+ISNULL(RIGHT(MAX(BH),6),0),6)
FROM tb WITH(XLOCK,PAGLOCK)
WHERE BH like '%'+ @dt+'%')