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OracleÓëMySQLÖГ¿É´®Ðл¯”µÄ¶Ô±È²âÊÔ
Thomas Kyte ÔÚ“Oracle 9i&10g±à³ÌÒÕÊõ”Ò»ÊéÖÐΪÁË˵Ã÷ÊÂÎñµÄ¸ôÀë¼¶±ð£¬ÌṩÁËһЩÀý×Ó¡£ÕâÀïÎÒÃÇÀ´¿´¿´“¿É´®Ðл¯”¼¶±ðϵıíÏÖ¡£
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idle> connect scott/tiger
Connected.
scott@FOO> select * from v$version;
BANNER
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Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
PL/SQL Release 11.2.0.1.0 - Production
CORE 11.2.0.1.0 Production
TNS for Linux: Version 11.2.0.1.0 - Production
NLSRTL Version 11.2.0.1.0 - Production
scott@FOO> create table a(x int);
Table created.
scott@FOO> create table b(x int);
Table created.
ÐÞ¸ÄÊÂÎñµÄ¸ôÀë¼¶±ðΪ“¿É´®Ðл¯”
ʱ¿Ì »á»°1 »á»°2
t1 scott@FOO> alter session set isolation_level = serializable;
Session altered.
t2 scott@FOO> alter session set isolation_level = serializable;
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PL/SQL-FOR UPDATE Óë FOR UPDATE OFµÄÇø±ð
url:http://hi.baidu.com/1413/blog/item/a521251f7e5993c4a686696b.html
Êý¾Ý¿â oracle for update of ºÍ for updateÇø±ð
select * from TTable1 for update Ëø¶¨±íµÄËùÓÐÐУ¬Ö»ÄܶÁ²»ÄÜд
2 select * from TTable1 wher ......
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mysql> grant ȨÏÞ1,ȨÏÞ2,¡È¨ÏÞn on Êý¾Ý¿âÃû³Æ.±íÃû³Æ to Óû§Ãû@Óû§µØÖ· identified by ¡®Á¬½Ó¿ÚÁ; ȨÏÞ1,ȨÏÞ2,¡È¨ÏÞn´ú±íselect,insert,update,delete,create,drop,index,alter,grant,references,reload,shutdown,process,fileµÈ14¸öȨÏÞ¡£µ±È¨ÏÞ1,ȨÏÞ2,¡È¨ÏÞn±»all privileges»òÕßall´úÌæ£¬±íʾ¸³ÓèÓû§È«²¿ ......