1.按姓氏笔画排序:
Select * From TableName Order By CustomerName Collate Chinese_PRC_Stroke_ci_as
2.数据库加密:
select encrypt('原始密码')
select pwdencrypt('原始密码')
select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同 encrypt('原始密码')
select pwdencrypt('原始密码')
select pwdcompare('原始密码','加密后密码') = 1--相同；否则不相同
example:
insert into city values(1,pwdencrypt('testcity'))
select pwdcompare('testcity',pwdencrypt('Ttcity'),0)=0
3.取回表中字段:
declare @list varchar(1000),@sql nvarchar(1000)
select @list=@list+','+b.name from sysobjects a,syscolumns b where a.id=b.id and
a.name='表A'
set @sql='select '+right(@list,len(@list)-1)+' from 表A'
exec (@sql)
4.查看硬盘分区:
EXEC master..xp_fixeddrives
5.比较A,B表是否相等:
if (select checksum_agg(binary_checksum(*)) from A)
=
(select checksum_agg(bi
