只能输入男或女 (sex char(2) 默认值为男 如果可以
=======
N'女')))
insert t select '男'
--error
insert t select '女'
--error
insert t select '不男不女'
--success
select * from t
drop tabl.... [阅读全文]
多谢各位 我在写了以下的语句:
SET TRANSACTION ISOLATION LEVEL READ UNCOMMITTED
select * from TABLE
begin transaction
save transaction sp0
begin transaction
update TABLE set COLUMN= '4'
save transaction sp1
begin .... [阅读全文]
(case when 1.0*SUM(CASE WHEN 计分 <=9 THEN 1 ELSE 0 END)/SUM(CASE WHEN 0 <计分 THEN 1 ELSE 0 END) >=0.9 then '绿区'
when 1.0*SUM(CASE WHEN 计分 <=9 THEN 1 ELSE 0 END)/SUM(CASE WHEN 0 <计分 THEN 1 ELSE 0 END) between 0.79 and.... [阅读全文]
--
Code highlighting produced by Actipro CodeHighlighter (freeware)
http://www.CodeHighlighter.com/
-->
select ship_cor_code '上海'
'天津' union all
select '3' '北京' union all
select '2' vessel_chnvarchar(10))
insert into.... [阅读全文]