The easy way to get the ddl of an dbms scheduler job is : select dbms_metadata.get_ddl(‘PROCOBJ’,’JOB_NAME’,’JOB_OWNER’) from dual; set pagesize 299 set long 999 select dbms_metadata.get_ddl(‘PROCOBJ’,’DBACLASS_PURGE’,’DBAUSER’) from dual; DBMS_METADATA.GET_DDL(‘PROCOBJ’,’DBACLASS_PURGE’,’DBAUSER’) ——————————————————————————– BEGIN dbms_scheduler.create_job(‘”DBACLASS_PURGE”‘, job_type=>’STORED_PROCEDURE’, job_action=> ‘DBAUSER.DBA_CREATE_DBACIRCUIT_PATH’ , number_of_arguments=>0, start_date=>TO_TIMESTAMP_TZ(’06-JUN-2017 06.58.16.001208000 AM ASIA/BAHRAIN’,’DD -MON-RRRR HH.MI.SSXFF AM TZR’,’NLS_DATE_LANGUAGE=english’), repeat_interval=> ‘FREQ=HOURLY;INTERVAL=2;’ , end_date=>NULL, job_class=>'”DEFAULT_JOB_CLASS”‘, enabled=>FALSE, auto_drop=>FALSE,comments=> ‘DBACLASS_PURGE’ ); dbms_scheduler.enable(‘”DBACLASS_PURGE”‘); […]

We can change the snap_interval and retention period for the automatic awr snapshot collection, using modify_snapshot_settings function. The default settings for ‘interval’ and ‘retention’ are 60 minutes and 8 days . DEFAULT SETTING: select snap_interval, retention from dba_hist_wr_control; SNAP_INTERVAL RETENTION ————————————————————————— ————————————————————————— +00000 01:00:00.0 +00008 00:00:00.0 Modify the snapshot setting:( snap_interval 30 min and retention […]

Automatic Workload Repository (AWR) is a collection of database statistics owned by the SYS user. By default snapshot are generated once every 60min . But In case we wish to generate awr snapshot manually, then we can run the below script.  This is usually useful, when we need to generate an awr report for a non-standard window with smaller interval. Lets say, we want to generate a report […]

The Automatic Workload Repository (AWR) collects and maintains statistics of the database. We can generate awr report for a particular time frame in the past using the script awrrpt.sql ( located under $ORACLE_HOME/rdbms/admin) script – @$ORACLE_HOME/rdbms/admin/awrrpt.sql conn / as sysdba SQL> @$ORACLE_HOME/rdbms/admin/awrrpt.sql Specify the Report Type ~~~~~~~~~~~~~~~~~~~~~~~ AWR reports can be generated in the following […]

                                  If you flush the shared pool, all the statements in cursor will be flushed. So if you want a sql query to do hard parsing, then you can flush the particular sql statement from shared pool. STEPS: 1. […]

                   If you have the sql_id of the sql query , then you can get the bind values of the bind variables, from v$sql_bind_capture. Script: SELECT sql_id, b. LAST_CAPTURED, t.sql_text sql_text, b.HASH_VALUE, b.name bind_name, b.value_string bind_value FROM gv$sql t JOIN gv$sql_bind_capture b using (sql_id) WHERE b.value_string is […]

Follow below steps from moving lob segment from one tablespace to another. SQL> ;   1*  select table_name,COLUMN_NAME,SEGMENT_NAME,TABLESPACE_NAME from dba_lobs where OWNER=’DBACLASS’ SQL> / TABLE_NAME     COLUMN_NAME  SEGMENT_NAME                       TABLESPACE_NAME ————– ———— ———————————- —————————— FD_BREL_AUDIT PAYLOAD      SYS_LOB0000100201C00011$$          WEBMDATA   SQL> alter table DBACLASS.FD_BREL_AUDIT move lob (PAYLOAD) store as SYS_LOB0000100201C00011$$ ( tablespace USERS); Table altered.   SQL>  select […]

 While dropping a user in oracle database , you may face below error. ORA-01940 Problem: SQL> drop user SCOTT cascade 2 / drop user SCOTT cascade * ERROR at line 1: ORA-01940: cannot drop a user that is currently connected Solution: 1. Find the sessions running from this userid: SQL> SELECT SID,SERIAL#,STATUS from v$session where […]

  Follow below steps for changing the oracle database name using nid utility. We will change the database name from P2PRMD2 to P1D2ST. 1. Mount the database SQL> STARTUP MOUNT ORACLE instance started. Total System Global Area 8754618368 bytes Fixed Size 4646288 bytes Variable Size 3556776560 bytes Database Buffers 5033164800 bytes Redo Buffers 160030720 bytes […]

    If you want to find, when a table was last modified like insert,update ,delete, then use the dictionary table dba_tab_modifications. SCENARIO: 1. Insert into test data: SQL[SCOTT@TDB01]SQL>>]insert into TEST values (10); 1 row created. SQL[SCOTT@TDB01]SQL>>]commit; Commit complete. 2. Check dba_tab_modification: SQL[SYS@TCRMDB01]SQL>>]select INSERTS,UPDATES,DELETES,TRUNCATED,TIMESTAMP from dba_tab_modifications where TABLE_NAME=’TEST’ and TABLE_OWNER=’SCOTT’; no rows selected   As […]