知识大全 DBA 常用Scripts（第一部分）

Posted 2022-04-11 知

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　　以下是我在一些网站上一点点节选出来的！我还会继续整理！先来一部分！大家觉得好我会在贴！　　网站太多了请到各网站的索引都有！　　Oracle DBA 常用 Script 　　 Description: This script will display the active user 　　and the rollback segment being used in the database 　　Code: 　　column rr heading RB Segment format a 　　column us heading Username format a 　　column os heading OS User format a 　　column te heading Terminal format a 　　　　SELECT r name rr 　　nvl(s username no transaction ) us 　　s osuser os 　　s terminal te 　　FROM 　　v$lock l 　　v$session s 　　v$rollname r 　　WHERE 　　l sid = s sid(+) AND 　　trunc(l id / ) = r usn AND 　　l type = TX AND 　　l lmode = 　　ORDER BY r name 　　/ 　　 Description: When you connect to sqlplus you see the the following sql prompt SQL> 　　By using this sql in the glogin sql you will see a prompt similar to the following: 　　SCOTT@DB > 　　Code: 　　　　The following code works on Oracle i ( ) 　　You have to insert the following line of code in glogin sql which is usually found in 　　$ORACLE_HOME/sqlplus/admin 　　　　set termout off 　　set echo off 　　define X=NotConnected 　　define Y=DBNAME 　　　　Column Usr New_Value X 　　Column DBName New_Value Y 　　Select SYS_CONTEXT( USERENV SESSION_USER ) Usr From Dual; 　　　　 The following does not work in but works in or above 　　Select SYS_CONTEXT( USERENV DB_NAME ) DBNAME From Dual; 　　　　 If you are using use this 　　Select Global_Name DBNAME from Global_Name; 　　　　set termout on 　　set sqlprompt &X@&Y> 　　　　Please note that this method will work only when you make a new sql plus session because when you make a new sql plus session then only glogin sql is executed 　　 Description: I got sick and tired of not having biise functions for numbers in Oracle so I went ahead and wrote my own 　　Code: 　　　　CREATE OR REPLACE PACKAGE biise IS 　　FUNCTION hexconverter (pi_number IN NUMBER) 　　RETURN CHAR; 　　　　FUNCTION hexconverter (pi_hexstr IN CHAR) 　　RETURN NUMBER; 　　　　FUNCTION bitand (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER; 　　　　FUNCTION bitor (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER; 　　　　FUNCTION bitxor (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER; 　　END biise; 　　/ 　　　　CREATE OR REPLACE PACKAGE BODY biise 　　IS 　　FUNCTION numtohexchar (pi_number IN NUMBER) 　　RETURN CHAR 　　IS 　　v_hextoreturn CHAR ( ); 　　BEGIN 　　IF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := A ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := B ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := C ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := D ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := E ; 　　ELSIF pi_number = THEN 　　v_hextoreturn := F ; 　　ELSE 　　raise_application_error ( Invalid value TRUE); 　　END IF; 　　　　RETURN v_hextoreturn; 　　END numtohexchar; 　　　　FUNCTION hexchartonum (pi_hexchar IN CHAR) 　　RETURN NUMBER 　　IS 　　v_numtoreturn NUMBER ( ); 　　BEGIN 　　IF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = A THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = B THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = C THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = D THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = E THEN 　　v_numtoreturn := ; 　　ELSIF pi_hexchar = F THEN 　　v_numtoreturn := ; 　　ELSE 　　raise_application_error ( Invalid value TRUE); 　　END IF; 　　　　RETURN v_numtoreturn; 　　END hexchartonum; 　　　　FUNCTION hexconverter (pi_number IN NUMBER) 　　RETURN CHAR 　　IS 　　i NUMBER; 　　v_digit NUMBER ( ); 　　v_hexstr VARCHAR ( ); 　　BEGIN 　　v_hexstr := ; 　　FOR i IN REVERSE 　　LOOP 　　v_digit := MOD (TRUNC (pi_number / POWER ( i)) ); 　　v_hexstr := v_hexstr || numtohexchar (v_digit); 　　END LOOP; 　　　　RETURN v_hexstr; 　　END hexconverter; 　　　　FUNCTION hexconverter (pi_hexstr IN CHAR) 　　RETURN NUMBER 　　IS 　　i NUMBER; 　　v_digit NUMBER ( ); 　　v_numtoreturn NUMBER; 　　v_hexstr CHAR ( ); 　　BEGIN 　　v_hexstr := LPAD (pi_hexstr ); 　　v_numtoreturn := ; 　　　　FOR i IN 　　LOOP 　　V_digit := hexchartonum (SUBSTR (v_hexstr i )); 　　v_numtoreturn := v_numtoreturn + v_digit * POWER ( i); 　　END LOOP; 　　　　RETURN v_numtoreturn; 　　END hexconverter; 　　　　FUNCTION bitand (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER 　　IS 　　v_hex CHAR ( ); 　　v_hex CHAR ( ); 　　v_raw RAW ( ); 　　v_raw RAW ( ); 　　v_rawresult RAW ( ); 　　v_hexresult VARCHAR ( ); 　　v_numresult NUMBER; 　　BEGIN 　　v_hex := hexconverter (pi_num ); 　　v_hex := hexconverter (pi_num ); 　　v_raw := HEXTORAW (v_hex ); 　　v_raw := HEXTORAW (v_hex ); 　　v_rawresult := UTL_RAW bit_and (v_raw v_raw ); 　　v_hexresult := RAWTOHEX (v_rawresult); 　　v_numresult := hexconverter (v_hexresult); 　　RETURN v_numresult; 　　END bitand; 　　　　FUNCTION bitor (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER 　　IS 　　v_hex CHAR ( ); 　　v_hex CHAR ( ); 　　v_raw RAW ( ); 　　v_raw RAW ( ); 　　v_rawresult RAW ( ); 　　v_hexresult VARCHAR ( ); 　　v_numresult NUMBER; 　　BEGIN 　　v_hex := hexconverter (pi_num ); 　　v_hex := hexconverter (pi_num ); 　　v_raw := HEXTORAW (v_hex ); 　　v_raw := HEXTORAW (v_hex ); 　　v_rawresult := UTL_RAW bit_or (v_raw v_raw ); 　　v_hexresult := RAWTOHEX (v_rawresult); 　　v_numresult := hexconverter (v_hexresult); 　　RETURN v_numresult; 　　END bitor; 　　　　FUNCTION bitxor (pi_num IN NUMBER pi_num IN NUMBER) 　　RETURN NUMBER 　　IS 　　v_hex CHAR ( ); 　　v_hex CHAR ( ); 　　v_raw RAW ( ); 　　v_raw RAW ( ); 　　v_rawresult RAW ( ); 　　v_hexresult VARCH cha138/Article/program/Oracle/201311/16529