Ò׽ؽØÍ¼Èí¼þ¡¢µ¥Îļþ¡¢Ãâ°²×°¡¢´¿ÂÌÉ«¡¢½ö160KB

sql_map_config.xml(SQL Map»·¾³Îļþ)

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN"
 "http://www.ibatis.com/dtd/sql-map-config-2.dtd">
<sqlMapConfig>
 <!-- ÅäÖúÍÓÅ»¯SQL Map½âÎöʵÀýµÄÉ趨 -->
 <settings cacheModelsEnabled="true" //SQL MapÔËÐÐʱʵÀýµÄ»º´æModelÊÇ·ñ¿ªÆô
     enhancementEnabled="true" //È«¾ÖÐÔµÄÆôÓûò½ûÓÃ×Ö½ÚÂëÔöÇ¿£¬ÒÔÓÅ»¯·ÃÎÊPOJO±äÁ¿ÊôÐԵŦÄÜ
        lazyLoadingEnabled="true" //³Ö¾Ã»¯Êý¾ÝÊÇ·ñÑÓ³Ù¼ÓÔØ
     maxRequests="32" //ͬʱִÐÐsqlÓï¾äµÄ×î´óÐÐÊý
     maxSessions="10" //ͬһʱ¼äÄڻµÄ×î´óSessionÊý¡£ËùνµÄSession¾ÍÊÇÒ»¸öÇëÇó»òÒ»¸öSQL MapÔËÐÐʱʵÀý×Ô¶¯»ñµÃµÄ»á»°
        maxTransactions="5" //ÖÆ¶¨ÁË×î´óÊÂÎñ´¦ÀíµÄÏß³ÌÊý
     useStatementNamespaces="true" />//ÖÆ¶¨ÁËÔÚSQL MapÓ³ÉäÎļþÖÐÊÇ·ñÓÃÈ«ÏÞ¶¨ÃûÀ´ÒýÓÃÓ³ÉäÉùÃ÷
 <!-- ÅäÖÃÁ¬½Ó -->
 <transactionManager type="JDBC" >
  <dataSource type="SIMPLE">
   <property name="JDBC.Driver" value="oracle.jdbc.OracleDriver"/>
   <property name="JDBC.ConnectionURL"
    value="jdbc:oracle:thin:@localhost:1521:orcl"/>
   <property name="JDBC.Username" value="system"/>
   <property name="JDBC.Password" value="abcd"/>
   <!-- ×î´óÁ¬½ÓÊý -->
   <property name="Pool.MaximumActiveConnections" value="10"/>
  </dataSource>
 </transactionManager>
 <!-- SQL MapÓ³ÉäÎļþµÄÈ¡µÃ… -->
 <sqlMap resource="fw_student_SqlMap.xml" />
</sqlMapConfig>


Ïà¹ØÎĵµ£º

SQL Server¡¢OracleºÍMySQLÖвé³öֵΪNULLµÄÌæ»»

SOURCE: CLICK HERE
±¾ÎĽ²ÊöSQL Server¡¢Oracle¡¢MySQL²é³öֵΪNULLµÄÌæ»»¡£
ÔÚSQL Server Oracle MySQLµ±Êý¾Ý¿âÖвé³öijֵΪNULLÔõô°ì?
1¡¢MSSQL: ISNULL()
Óï·¨
ISNULL ( check_expression , replacement_value )
²ÎÊý
check_expression
½«±»¼ì²éÊÇ·ñΪ NULLµÄ±í´ïʽ¡£check_expression ¿ÉÒÔÊÇÈκÎÀàÐ͵ġ£
re ......

SQL server2005ÖÐÎļþ±¸·ÝÓë»Ö¸´

±¸·Ý
BACKUP DATABASE mydb
TO DISK='c:\olddb.bak'
WITH INIT
--ΪÁ˲âÊÔ£¬°Ñ±¸·ÝºÃµÄÎļþ´ÓCÅÌÒÆ¶¯µ½D:\tempdb Îļþ¼Ð
--»¹Ô­
--1.ÓôËÓï¾äµÃµ½±¸·ÝÎļþµÄÂß¼­ÎļþÃû£º
RESTORE FILELISTONLY from DISK = N'd:\tempdb\olddb.bak' --±¸·ÝÎļþ´æ·Å·¾¶
--¿´LogicalName£¬Ò»°ã»áÓÐÁ½¸öÎļþ,È磺
--olddb &nbs ......

[SQL Server] ÈÕÖ¾¹ÜÀí(´ýÐø)

 --±¸·ÝÊÂÎñÈÕÖ¾ (×ÔÉÏÒ»´Î±¸·ÝÒÔÀ´£¬ÖÁµ±Ç°µÄÒÑÍê³ÉµÄÊÂÎñµÄÈÕÖ¾)
backup log MyDBName to disk='F:\dbbak\GamePoint\MyDBName_log_2010052709.bak';
 
--½Ø¶ÏÈÕÖ¾(½Ø¶Ïµôµ±Ç°µÄÒÑÍê³ÉµÄÊÂÎñµÄÈÕÖ¾), SQL Server 2005, 2008ûÓÐÕâ¸öÑ¡Ïî.
backup log MyDBName with no_Log;
 
--ÊÕËõÈÕÖ¾(ÖÁ1M,µ ......

SQLÂÒÂëµÄÎÊÌâ

ÔÚSQL   Server   Unicode×Ö·û´®³£Á¿ÐèҪǰ׺N  
   
  µ±ÔÚSQL  
SERVERÀï±ß´¦Àí×Ö·û´®³£Á¿µÄʱºòÄã±ØÐëÔÚ³£Á¿Ö®Ç°·ÅÒ»¸ö´óдµÄN,¾ÍÏñSQL  
SERVERÁ¬»úÎĵµ±êÌâΪ"²ÉÓÃUnicodeÊý¾Ý"Ëù˵Ã÷µÄÄÇÑù.Nǰ׺ÏóÕ÷×ÅÔÚSQL-92  
±ê×¼µÄ¹ú¼ÒÓïÑÔ,²¢ÇÒ±ØÐëÊÇ´óд×Öĸ.Èç¹ûÄãÔ ......

SQL Server ÈÕÆÚºÍʱ¼äº¯Êý


 
1¡¢³£ÓÃÈÕÆÚ·½·¨(ÏÂÃæµÄGetDate() = '2006-11-08 13:37:56.233')
(1)DATENAME ( datepart ,date )
   ·µ»Ø±íʾָ¶¨ÈÕÆÚµÄÖ¸¶¨ÈÕÆÚ²¿·ÖµÄ×Ö·û´®¡£DatepartÏê¼ûÏÂÃæµÄÁбí.
SELECT DateName(day,Getdate()) –·µ»Ø8
(2)DATEPART ( datepart , date )
    ·µ»Ø±íʾָ¶¨ÈÕÆÚµÄÖ¸ ......
© 2009 ej38.com All Rights Reserved. ¹ØÓÚE½¡ÍøÁªÏµÎÒÃÇ | Õ¾µãµØÍ¼ | ¸ÓICP±¸09004571ºÅ