Category: Oracle

Problem Description: ~~~~~~~~~~~~~~~~~~~~ Database link passwords are stored as plaintext. A database link is a mechanism used to provide a method of transparently accessing one server from another. When creating a database link, a user name and password of the account on the remote server can be specified. Creating the database link without credentials works…

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set lines 120 pages 200 col line format 9999 col position format 999 col text format a80 select line, position, text from dba_errors where owner= upper(‘&owner_name’) and name = upper(‘&obj_name’) order by SEQUENCE;

Oracle 10g for Solaris 10 I got error message “Checking operating system version: must be 5.8 or 5.9. Actual 5.10 Failed

There is a standard way of trapping any SQL or database errors in Pro*C.This is done using EXEC SQL WHENEVER SQLERROR DO ; just ensure that the above statement goes before any sql statements whenever an error is encountered , the control goes to the function function_name in the body of the function_name , just…

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1. EXEC SQL COMMIT WORK RELEASE; (When you want to commit transactions and disconnect;similar to EXIT in SQL*PLUS) 2. EXEC SQL ROLLBACK WORK RELEASE; (When you want to rollback transactions and disconnect;similar to QUIT in SQL*PLUS)

select * from v$session_longops where sid=100;

exec dbms_output.enable(10000); set lines 130 pages 1000 set serveroutput on size 1000000 declare cursor c1 is select substr(name,1,61) complete_filename, bytes/(1024) KB, substr(name, instr(name, ‘/’, -1)+1) only_filename from v$datafile order by file#; threshold_kb number(10) := 94000000 ; size_counter number := 0; mountpoint_counter number := 1; mountpoint_prefix varchar2(10) := ‘/800t’; common_mountpoint_prefix varchar2(15) := ‘/oradata/800T/’; target_filename varchar2(61); begin…

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ALTER SEQUENCE CS.SESSION_ACTIVE_SEQ_ID CACHE 2000; exec sys.DBMS_SHARED_POOL.KEEP(‘CS.SESSION_ACTIVE_SEQ_ID ‘, ‘Q’) =>> To pin the sequence using the DMBS_SHARED_POOL.KEEP procedure (IF NEEDED) Potential drawbacks Setting a cache size larger then 0 can result in the loss of sequence values if the system is shutdown abruptly. When the system fails, the values that were preserved in memory are…

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