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Showing posts from August, 2013

Oracle pagination query example

    select         *      from         ( select             row_.*,             rownum rownum_          from             (  YOUR SELECT STATEMENT WITH WHERE,GROUP,ORDER,AGGREGATES,ETC  ) row_ )          where             rownum_ <= ?              and rownum_ > ?

Important Oracle queries

SELECT s.inst_id,        s.sid,        s.serial#,        p.spid,        s.username,        s.program FROM   gv$session s        JOIN gv$process p ON p.addr = s.paddr AND p.inst_id = s.inst_id WHERE  s.type != 'BACKGROUND'; ALTER SYSTEM KILL SESSION '8,11'; SELECT O.OBJECT_NAME, S.SID, S.SERIAL#, P.SPID, S.PROGRAM,S.USERNAME, S.MACHINE,S.PORT , S.LOGON_TIME,SQ.SQL_FULLTEXT FROM V$LOCKED_OBJECT L, DBA_OBJECTS O, V$SESSION S, V$PROCESS P, V$SQL SQ WHERE L.OBJECT_ID = O.OBJECT_ID AND L.SESSION_ID = S.SID AND S.PADDR = P.ADDR AND S.SQL_ADDRESS = SQ.ADDRESS;   SET AUTOTRACE ON;   SET TIMING ON;   SELECT PLAN_TABLE_OUTPUT FROM TABLE(DBMS_XPLAN.DISPLAY());     explain plan FOR ...          alter user e2etracking identified by e2etracking account unlock;

Using ComboPooledDataSource in Spring context

destroy-method="close"> jdbc.Driver=oracle.jdbc.OracleDriver jdbc.url=jdbc:oracle:thin:@serverhost:1521:XE jdbc.username=xxxxx jdbc.password=xxxxxx #jdbc.url=jdbc:oracle:thin:@serverhost:1521/SERVICE_NAME jdbc.initialSize=2 jdbc.maxActive=5 jdbc.maxIdle=2 jdbc.minIdle=1 jdbc.validationQuery=select 1 from dual jdbc.removeAbandoned=true

Oracle Group by a String column by string concatenation of its values

CREATE OR REPLACE VIEW SOWCUSTOMERPROJECTVIEW AS   SELECT OPPRTNTY.CUST_ACNT_NBR,     OPPRTNTY.OPPRTNTY_ID,     OPPRTNTY.EXT_OPPRTNTY_ID,     OPPRTNTY.OPPRTNTY_NM,     OPPRTNTY.OPPRTNTY_DSC,     LISTAGG(PROJECT.PROJECT_NM, ', ') WITHIN GROUP (   ORDER BY PROJECT.PROJECT_NM) AS SUB_PRODUCT,     LISTAGG(BATCH_CLASS.BATCH_CLASS_NM, ', ') WITHIN GROUP (   ORDER BY BATCH_CLASS.BATCH_CLASS_NM) AS SUB_PRODUCT2,     --PROJECT.PROJECT_NM,     --BATCH_CLASS.BATCH_CLASS_NM,     COUNT(PROJECT.PROJECT_ID) AS cnt   FROM OPPRTNTY   INNER JOIN PROJECT   ON OPPRTNTY.OPPRTNTY_ID = PROJECT.OPPRTNTY_ID   INNER JOIN BATCH_CLASS   ON BATCH_CLASS.BATCH_CLASS_ID = PROJECT.BATCH_CLASS_ID   GROUP BY OPPRTNTY.CUST_ACNT_NBR,     OPPRTNTY.OPPRTNTY_ID,     OPPRTNTY.EX...