发布时间：2013-12-26 11:04:28
隔行变色CSS代码：点击(此处)折叠或打开 body{ margin:0 auto; text-align:center} table{margin:0 auto; width:410px} table{ border:1px solid #000} .........【阅读全文】
发布时间：2013-12-10 11:42:18
Autotrace Setting ResultSET AUTOTRACE OFFNo AUTOTRACE report is generated. This is the default.SET AUTOTRACE ON EXPLAINThe AUTOTRACE report s.........【阅读全文】
发布时间：2013-12-04 18:01:32
The difference between utlchain.sql and utlchn1.sql is the column head_rowid data type:::::::::::::::utlchain.sql::::::::::::::create table CHAINED_ROWS ( owner_name varchar2(30), table_n.........【阅读全文】
发布时间：2013-11-25 15:34:03
select level, max('col_name') from my_tablewhere level = '&n'connect by prior ('col_name') > 'col_name')group by level;-- Example :---- Given a table called emp with the following columns:-- id number.........【阅读全文】
发布时间：2013-10-15 16:46:43
解释一: 屏蔽某些编译时的警告信息 在强制类型转换的时候编译器会给出警告 加上 程序代码 .........【阅读全文】
