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1.
--½«ºº×Öת»»ÎªÆ´ÒôÊ××Öĸ
CREATE function GetAllPY(@str nvarchar(4000))
returns nvarchar(4000)
--WITH ENCRYPTION
as
begin
declare @intLen int
declare @strRet nvarchar(4000)
declare @temp nvarchar(100)
set @intLen = len(@str)
set @strRet = ''
while @intLen > 0
begin
set @temp = ''
select @temp = case
when substring(@str,@intLen,1) >= '帀' then 'Z'
when substring(@str,@intLen,1) >= 'Ѿ' then 'Y'
when substring(@str,@intLen,1) >= 'Ϧ' then 'X'
when substring(@str,@intLen,1) >= '屲' then 'W'
when substring(@str,@intLen,1) >= 'Ëû' then 'T'
when substring(@str,@intLen,1) >= 'Øí' then 'S'
when substring(@str,@intLen,1) >= '呥' then 'R'
when substring(@str,@intLen,1) >= 'Æß' then 'Q'
when substring(@str,@intLen,1) >= '妑' then 'P'
when substring(@str,@intLen,1) >= 'àÞ' then 'O'
when substring(@str,@intLen,1) >= '拏' then 'N'
when substring(@str,@intLen,1) >= '嘸' then 'M'
when substring(@str,@intLen,1) >= 'À¬' then 'L'
when substring(@str,@intLen,1) >= 'ßÇ' then 'K'
when substring(@str,@intLen,1) >= 'Ø¢' then 'J'
when substring(@str,@intLen,1) >= 'îþ' then 'H'
when substring(@str,@intLen,1) >= 'ê
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Create proc RegisterUser
(
@usrName varchar(30)
,@usrPasswd varchar(30)
,@age int
,@PhoneNum varchar(20)
,@Address varchar(50)
)
as
begin
--ÏÔʾ¶¨Òå²¢¿ªÊ¼Ò»¸öÊÂÎñ
begin tran
insert into user
(
userName
,userPasswd
)
values
(
@usrName
,@usrPassw ......
xtype ´ú±íÀàÐÍ
C = CHECK Ô¼Êø
D = ĬÈÏÖµ»ò DEFAULT Ô¼Êø
F = FOREIGN KEY Ô¼Êø
L = ÈÕÖ¾
FN = ±êÁ¿º¯Êý
IF = ÄÚǶ±íº¯Êý
P = ´æ´¢¹ý³Ì
PK = PRIMARY KEY Ô¼Êø£¨ÀàÐÍÊÇ K£©
RF = ¸´ÖÆÉ¸Ñ¡´æ´¢¹ý³Ì
S = ϵͳ±í
TF = ±íº¯Êý
TR = ´¥· ......
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select id from t where num is null
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select id ......
Ms sql 2000
drivername=com.microsoft.jdbc.sqlserver.SQLServerDriver
url=jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=books
username=sa
password=sa
MySQL
drivername=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost/books
username=root
password=root
Oracle
drivername=orac ......
selectÓï¾äǰ¼Ó£º
declare @d datetime
set @d=getdate()
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select [Óï¾äÖ´Ðл¨·Ñʱ¼ä(ºÁÃë)]=datediff(ms,@d,getdate())
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