alter function dbo.IDTrue--验证十八位身份证是否正确
(
@ID varchar(18)
)
returns bit
as
begin
--验证格式是否正确
declare @RES bit
declare @W table (rn int,val int)
insert into @W(rn,val)
select 1,7
union select 2,9
union select 3,10
union select 4,5
union select 5,8
union select 6,4
union select 7,2
union select 8,1
union select 9,6
union select 10,3
union select 11,7
union select 12,9
union select 13,10
union select 14,5
union select 15,8
union select 16,4
union select 17,2
union select 18,1
declare @A table (rwn int ,val varchar(1))
insert into @A(rwn,val)
select 0,'1'
insert into @A(rwn,val)
select 1,'0'
insert into @A(rwn,val)
select 2,'X'
insert into @A(rwn,val)
select 3,'9'
insert into @A(rwn,val)
select 4,'8'
insert into @A(rwn,val)
select 5,'7'
insert into @A(rwn,val)
select 6,'6'
insert into @A(rwn,val)
select 7,'5'
insert into @A(rwn,val)
select 8,'4'
insert into @A(rwn,val)
select 9,'3'
insert into @A(rwn,val)
select 10,'2'
declare @i int
declare @j int
declare @S int
if len(@ID)=18
begin
select @S=0,@i=1
declare @IDI int
declare @WI int
declare @PII varchar(1)
while @i<=17
begin
select @PII=substring(@ID,@i,1)
if @PII like '[0-9]'
begin
select @IDI=convert(int,@PII)
select @WI=val from @W where rn=@i
select @j=@IDI*@WI
select @S=@S+@j
select @i=@i+1
end
else
begin
select @RES=0
return @RES
end
end
select @S=@S % 11
select @IDI=convert(int,substring(@ID,18,1))
declare @pi varchar(1)
select @pi=val from @A where rwn =@S
if @pi=@IDI
select @RES=1
else
select @RES=0
end
else
begin
select @RES=0
end
return @RES
end
go
declare @pc bit
select @pc=dbo.IDTrue('420324198101031224')
select @pc
go
alter function SFZ15To18--十五位升十八
(
@sfz varchar(15)
)
returns varchar(18)
as
begin
declare @W table (rn int,val int)
insert into @W(rn,val)
select 1,7
union select 2,9
union select 3,10
union select 4,5
union select 5,8
union select 6,4
union select 7,2
union select 8,1
union select 9,6
union select 10,3
union select 11,7
union select 12,9
union select 13,10
union select 14,5
union select 15,8
union select 16,4
union select 17,2
union select 18,1
declare @A table (rwn int ,val varchar(1))
insert into @A(rwn,val)
select 0,'1'
insert into @A(rwn,val)
select 1,'0'
insert into @A(rwn,val)
select 2,'X'
insert into @A(rwn,val)
select 3,'9'
insert into @A(rwn,val)
select 4,'8'
insert into @A(rwn,val)
select 5,'7'
insert into @A(rwn,val)
select 6,'6'
insert into @A(rwn,val)
select 7,'5'
insert into @A(rwn,val)
select 8,'4'
insert into @A(rwn,val)
select 9,'3'
insert into @A(rwn,val)
select 10,'2'
declare @NEWID varchar(18)
select @NEWID=substring(@sfz,1,6)+'19'+substring(@sfz,7,9)
declare @i int
declare @j int
declare @S int
select @S=0,@i=1
declare @IDI int
declare @WI int
declare @PII varchar(1)
while @i<=17
begin
select @PII=substring(@NEWID,@i,1)
if @PII like '[0-9]'
begin
select @IDI=convert(int,@PII)
select @WI=val from @W where rn=@i
select @j=@IDI*@WI
select @S=@S+@j
select @i=@i+1
end
else
begin
return ''
end
end
select @S=@S % 11
declare @pi varchar(1)
select @pi=val from @A where rwn =@S
select @NEWID=@NEWID+@pi
return @NEWID
end
go
select dbo.SFZ15To18('420324810103153')
go
--日期是否正确
alter function ChkYMD(
@y int,
@m tinyint,
@d tinyint,
@cy int
)
returns bit
as
begin
declare @res bit
select @res=1
if @y<1900 or @y>@cy
begin
select @res=0
return @res
end
if @m=1 or @m=3 or @m=5 or @m=7 or @m=8 or @m=10 or @m=12
begin
if (@d<1) or (@d>31)
begin
select @res=0
return @res
end
end
if @m=2
begin
if ((@y%4)=0) and ((@y % 100)<>0) or ( (@y % 400)=0 )
begin--闰年
if (@d<1) or (@d>29)
begin
select @res=0
return @res
end
end else
begin
if (@d<1) or (@d>28)
begin
select @res=0
return @res
end
end
end
if @m=4 or @m=6 or @m=9 or @m=11
begin
if (@d<1) or (@d>30)
begin
select @res=0
return @res
end
end
return @res
end
go
select dbo.chkymd(1981,1,3,Year(getdate()))
go
/*
y：年，m：月，d：日。在参数都只传入相应的整数
返回值：0 星期一
1 星期2
2 星期3
3 星期4
4 星期5
5 星期6
6 星期7
*/
alter function GetWeekDay(
@y int,
@m int,
@d int
)
returns tinyint
as
begin
declare @a tinyint
select @a=7
if @m=1 or @m=2
begin
select @m=@m+12
select @y=@y-1
end
select @a=(@d+2*@m+3*(@m+1)/5+@y+@y/4-@y/100+@y/400)%7;
return @a
end
go
select dbo.getweekday(2004,12,10) 
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