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關于sql server中的表函數?

關于sql server中的表函數?

嗶嗶one 2018-12-13 19:11:59
關于sql server中的表函數
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1 回答

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慕神8447489

TA貢獻1780條經驗 獲得超1個贊

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1

有問題HI我

這個問題用標致函數比較難,1樓調用標致函數的方法也是錯誤的,正確的方法應該是:
SELECT * FROM DBO.CaculateDailyTM()

我用游標實現 ,比較好理解:

create table tb1(zm char(8),sd datetime,ed datetime)
GO
insert into tb1 values('s1','1980-1-1','1980-2-1')
insert into tb1 values('s2','1992-2-1','1993-3-1')
GO
--建立測試數據

declare zm_cursor cursor fast_forward for select zm from tb1
declare @t1 datetime,@t2 datetime,@zm char(8)
declare @tb table(zm char(8),d datetime)
open zm_cursor
fetch next from zm_cursor into @zm
while @@fetch_status=0
begin
select @t1=sd,@t2=ed from tb1 where zm=@zm
while @t1<=@t2
begin
insert into @tb values(@zm,@t1)
set @t1=dateadd(day,1,@t1)
end
fetch next from zm_cursor into @zm
end
select * from @tb
close zm_cursor
deallocate zm_cursor

GO

DROP TABLE TB1



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