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1)SQL ServerÁ´½Ó·þÎñÆ÷ Linked Server·½Ê½£¨SQLServer×÷ΪԴ·þÎñÆ÷£©£º
http://www.cnblogs.com/riccc/archive/2009/07/23/sql-server-linked-server.html
2)Oracle¸ß¼¶¸´ÖÆ£¨oracleÊý¾Ý¿âÖ®¼ä¸´ÖÆ£©£º
http://www.chinaunix.net/bbsjh/8/54.html
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3)Oracle͸Ã÷Íø¹Ø£¨oracleºÍ²»Í¬Êý¾Ý¿âµÄÁ¬½Ó£©£º
http://www.diybl.com/course/7_databases/oracle/oraclexl/20090304/158004.html
http://wuwenbin.javaeye.com/blog/275973
http://doc.linuxpk.com/79497.html


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Oracle תÒå×Ö·û

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create table t_escape(s varchar2(50));
--show define -- define "&" (hex 26)
--show escape -- escape off
set define off
set escape on
insert into t_escape values('string&text');
insert into t_escape values('string\&text');
insert into t_escape values('st ......

Oracle Latch¼°latchì¶Ü

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Oracle RdbmsÊ©ÓÃÁ˸÷ÖÖ²»Í¬ÀàÐ͵ÄËø¶¨»úÖÆ£¬latchµÈÓÚ´ËÖеÄÒ»ÖÖ£¬ÕýÎĽ«¼¯ÖÐÒý¼ûlatch(ãÅ)µÄ¸ÅÄ¶®µÃlatchµÄ¶ÒÏÖ²½Ö貢˵Ã÷»½ÆðlatchĦ²ÁµÄÔµ¹Ê¡£
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LatchÊÇÓÃÀ´±£»¤SGAÇøÖй²ÏíÊý¾Ý½á¹¹µÄÒ»ÖÖ´®Ðл¯Ëø¶¨»úÖÆ¡£LatchµÄ¶ÒÏÖÊÇÓë²Ù×÷ϵͳÏà¸ÉµÄ£¬ÓÈÉõºÍÒ»¸ö¹ý³ÌÊDz»ÊÇØ½ÐèµÈºòÒ»¸ölatch¡¢¼±ÐèµÈº ......

Oracle ²éѯ¡¢¸üлù±¾²Ù×÷

oracle ĬÈϸôÀëµÈ¼¶ÊÇ£º¶ÁÒÑÌá½»¡£
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select * from books for update;
µ±Ç°Óû§¸üÐÂÖ®ºó£¬ÁíÍâÓû§¿ÉÒÔ¸ü¸Ä¡£
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select empno,ename,emp.deptno A,dept.deptno B,dname from emp ......

ORACLE to_charº¯ÊýÏê½â

 The following are number examples for the to_char function.
to_char(1210.73, '9999.9')
would return '1210.7'
to_char(1210.73, '9,999.99')
would return '1,210.73'
to_char(1210.73, '$9,999.00')
would return '$1,210.73'
to_char(21, '000099')
would return '000021'
The following is a list ......

oracle ´æ´¢¹ý³ÌµÄ»ù±¾Óï·¨

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CREATE OR REPLACE PROCEDURE ´æ´¢¹ý³ÌÃû×Ö
(
    ²ÎÊý1 IN NUMBER,
    ²ÎÊý2 IN NUMBER
) IS
±äÁ¿1 INTEGER :=0;
±äÁ¿2 DATE;
BEGIN
END ´æ´¢¹ý³ÌÃû×Ö
2.SELECT INTO STATEMENT
  ½«select²éѯµÄ½á¹û´æÈëµ½±äÁ¿ÖУ¬¿ÉÒÔͬʱ½«¶à¸öÁд洢¶à¸ö±äÁ¿ÖУ¬±ØÐëÓÐÒ»Ì ......
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