標籤:http://www.cnblogs.com/chen1388/archive/2010/07/06/1771919.htmldecode函數:decode(aa, 1, ‘xs‘, 2, ‘ps‘, ‘ms‘)相當於 (case aa when 1 then ‘xs‘when 2 then ‘ps‘ else ‘ms‘ end)http://www.cnblogs.com/chen1388/archive/2010/07/06/1771930
一.Alert log 說明 在Oracle 11.2.0.2 的資料庫中alert log發現大量如下log: Fatal NI connect error 12537, connectingto: (LOCAL=NO) VERSION INFORMATION: TNS for HPUX: Version 11.2.0.2.0 - Production Oracle Bequeath NT Protocol Adapter for HPUX: Version 11.2
Oracle中查詢某個表的總欄位數,要用SQL語句,或者在PL/SQL裡面複製代碼 代碼如下:select count(column_name) from user_tab_columns where table_name='T_B_AUDITOR'能夠查出來指定的那張表的欄位數。下面是通過大致查看:select tname,count(*) from col group by tname;複製代碼 代碼如下:64 T_A_BOOKSTAGEINFO 465
ORA-29861:domain index is marked LOADING/FAILED/UNUSABLECause:An attempt has been made to access a domain index that is being built or is marked failed by an unsuccessful DDL or is marked unusable by a DDL operation.Action:Wait if the specified
很多朋友在Java開發中,使用Oracle資料庫的時候,經常會碰到有ORA-01000: maximum open cursors exceeded.的錯誤。 實際上,這個錯誤的原因,主要還是代碼問題引起的。 ora-01000: maximum open cursors exceeded. 表示已經達到一個進程開啟的最大遊標數。