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c# ²Ù×÷mssqlÊý¾Ý¿â º¬Óдø²ÎÊýsqlÓï¾äÔËÐÐ

<?xml version="1.0" encoding="utf-8"?>
<configuration>
 <appSettings>
  <add key="Default" value="Default" />
 </appSettings>
 <connectionStrings>
  <add name="Default" connectionString="Data Source=192.168.1.197;User ID ......

MsSql ²é¿´ÐÅÏ¢ºÃÓï¾ä

set statistics profile on
set statistics io on
set statistics time on
select top 1 * from et_order order by pkid desc
½á¹ûÈçÏ£º
SQL Server ·ÖÎöºÍ±àÒëʱ¼ä:
   CPU ʱ¼ä = 0 ºÁÃ룬ռÓÃʱ¼ä = 1 ºÁÃë¡£
SQL Server Ö´ÐÐʱ¼ä:
   CPU ʱ¼ä = 0 ºÁÃ룬ռÓÃʱ¼ä = 1 ºÁÃë¡£
SQL Se ......

mssql sysobjects type˵Ã÷

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 = ´¥· ......

MsSQL,MySQL,Oracle,Êý¾Ý¿âÁ¬½Ó×Ö¶Î

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 ......

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declare @d datetime
set @d=getdate()
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select [Óï¾äÖ´Ðл¨·Ñʱ¼ä(ºÁÃë)]=datediff(ms,@d,getdate())
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