ORACLE Text 文本檢索:(先要建立CONTEXT或CTXCAT索引,然後如下)(還可以在from前加,SCORE(10)來觀察檢索到的項目的得分)1.單詞的精確匹配檢索select cbid,title(列名) from emergency(表名) where contains(title,'關於')>0; 是從title中檢索含詞“關於”的cbid和title欄位。2.多個單詞精確匹配select cbid,title form emergency where
oracle的substr函數的用法 取得字串中指定起始位置和長度的字串 substr( string, start_position, [ length ] ) 如: substr('This is a test', 6, 2) would return 'is' substr('This is a test', 6) would return 'is a test' substr('TechOnTheNet', -3, 3) would r
這個預存程序不是我寫的,但是很好使,特別適合剛匯入對象看到滿螢幕的叉。CREATE OR REPLACE PROCEDURE "USER"."RECOMPILE_SCHEMA" IS v_type user_objects.object_type%TYPE; v_name user_objects.object_name%TYPE; v_stat user_objects.status%TYPE; CURSOR c_obj IS SELECT base
最近在一個過程用到一個數組,來儲存一個系列數值。 Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->1 declare type ln_mon_plan_value_varray is varray(20) of NUMBER(20,5);2 ln_mon_plan_value ln_mon_plan_value_varray;3
Oracle遊標的使用下面的例子完整說明遊標的聲明,開啟,提取關閉操作以及遊標參數的傳遞方法. DeclareDeptRec dept%ROWTYPE;dept_name dept.dname@TYPE;dept_loc dept.loc%TYPE;Cursor c1 IsSelect dname,loc from dept where deptno<=30;Cursor c2(dept_no number Default 10) is select dname,loc from d
Oracle中,如果跨兩個表進行更新,Sql語句寫成這樣Update Table a set a.ID=Table2.ID where a.Name = Table2.Name Oracle 不會通過。查了資料,Sql語句需要這樣寫才行Update Table a set a.ID=(select b.ID from Table2 b where b.Name = a.Name ) where exist (select 1 from Table2