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        <title>functions</title>
        <link>https://www.adminschool.net/wiki/doku.php?id=dbms:oracle:devel:functions&amp;rev=1759498250&amp;do=diff</link>
        <description>Lovely Oracle Function Lists

NVL

	*  NVL은 NULL값을 다른 값으로 변경하는 함수
	*  모든 데이타 타입에 적용 가능
	*  전환되는 값의 데이타 타입을 일치시켜야 한다.

NVL2

	*  NVL2(적용컬럼명, NULL이 아닐때의 값, NULL일 때 값)</description>
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        <description>그냥 참조용.

SQL&gt; select department_id from employees;

DEPARTMENT_ID

----------
         90
         90
         90
         60
         60
         60
         50
         50
         50
         50
         50
         80
         80
         80</description>
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        <description>Materialized View

정의

	*  Materialized View(M-View) 는 말 그대로 View입니다.
	*  일반 View 논리적인 테이블이고, M-View는 물리적으로 존재하는 테이블(Data가 일정공간 차지)입니다.
	*  M-View는 결과를 뽑아내는 쿼리가 너무나 빈번히 사용될 경우, Query 실행시간의 수행속도 향상을 위하여,</description>
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        <title>oracledatefunction</title>
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        <description>오라클 날짜 함수

날짜 함수
 문형  사용 예       문형  결과  SYSDATE  SYSDATE  99/05/10  SYSTIMESTAMP  SYSTIMESTAMP  07/03/07 10:55:24.260425 +09:00  LAST_DAY(날짜값)  LAST_DAY(&#039;98/02/17&#039;)  98/02/28  NEXT_DAY(날짜값, 요일 문자)</description>
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        <title>oracleplsql</title>
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        <description>PL/SQL

	*  PL/SQL
	*  커서와 에러처리
	*  패키지와 트리거
	*  PL/SQL의 관리</description>
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        <title>rank</title>
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        <description>Oracle RANK() Function

	*  일반적으로 순위는 ODRDER BY DESC 를 통해 볼수가 있습니다. 
	*  하지만 똑같은 점수를 가진 사람이 존재하면 표현하기 어렵습니다. 
예를 들면.100, 90, 90, 80 이렇게 점수가 나오면, 순위를 1,2,2,4 이렇게 부여 해야 합니다</description>
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        <title>regexp</title>
        <link>https://www.adminschool.net/wiki/doku.php?id=dbms:oracle:devel:regexp&amp;rev=1759498250&amp;do=diff</link>
        <description>Oracle Regular Expression(정규표현식)

개념

	*   오라클 정규표현식의 정의 

실습

	*   REGEXP_SUBSTR 
	*   REGEXP_LIKE 
	*   REGEXP_REPLACE 
	*   이메일 제약조건 만들기</description>
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        <title>triggerenablesp</title>
        <link>https://www.adminschool.net/wiki/doku.php?id=dbms:oracle:devel:triggerenablesp&amp;rev=1759498250&amp;do=diff</link>
        <description>트리거 활성화 시키는 프로시져


-- *--------------------------------------------
-- * disable 된 트리거를 찾아서 다시 활성화 시키는 프로시져

CREATE OR REPLACE PROCEDURE          RH3_COLD.SUB_TRIG_ENABLE_P02 IS

V_TRIG_NAME    USER_TRIGGERS.TRIGGER_NAME%TYPE ;
V_TRIG_STATUS  USER_TRIGGERS.STATUS%TYPE    ;
CNT    NUMBER := 0 ;
TRIG_TOT_CNT   NUMBER ;   

CURSOR TRIG_CURSOR IS
   SELECT TRIGGER_NAME, STATUS FROM USER_TRIGGERS ;

BEGIN

-- DBMS_OUTPUT.ENABLE ;

-- 트리거의 갯수를 센다.
SELECT COUNT(*) INTO TRIG_TOT_CNT FROM USER_TRIGGERS ;…</description>
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