UPgrade 12CR1 to 12CR2

http://dbaclass.com/article/upgrade-database-from-12-1-0-2-to-12-2-0-1/

 

 

Trouver les objets invalides dans la base

https://blog.devart.com/find-invalid-objects-in-your-databases.html

Méthode de sauvegarde PostgreSQL - pgBackRest

https://pgstef.github.io/2018/01/04/introduction_to_pgbackrest.html

 

https://fr.slideshare.net/slardiere/pgbackrest-pgdayfr

 

http://laetitia-avrot.blogspot.com/2017/02/faire-une-sauvegarde-avec-pgbackrest.html

 

http://laetitia-avrot.blogspot.com/2017/02/restaurer-avec-pgbackrest.html

ARE

calcul de l'are

https://droit-finances.commentcamarche.com/faq/3561-allocation-chomage-2019-calcul-de-l-indemnite-are-2019

calcul du salaire journalier de référence

https://droit-finances.commentcamarche.com/contents/1532-chomage-calcul-du-salaire-journalier-de-reference

 

Vous avez créé une entreprise et bénéficiez de l'Allocation de Retour à l'Emploi (ARE)

 

(ARE) et création d'entreprise

 

Le maintien des allocations chômage en cas de création ou de reprise d’entreprise

 

Les aides financières proposées par Pôle emploi aux créateurs repreneurs d'entreprise

Identifier un fichier trace d'une session

-- -----------------------------------------------------------------------------------
-- File Name    : https://oracle-base.com/dba/monitoring/identify_trace_file.sql
-- Author       : Tim Hall
-- Description  : Displays the name of the trace file associated with the current session.
-- Requirements : Access to the V$ views.
-- Call Syntax  : @identify_trace_file
-- Last Modified: 17-AUG-2005
-- -----------------------------------------------------------------------------------
SET LINESIZE 100
COLUMN trace_file FORMAT A60

SELECT s.sid,
       s.serial#,
       pa.value || '/' || LOWER(SYS_CONTEXT('userenv','instance_name')) ||    
       '_ora_' || p.spid || '.trc' AS trace_file
FROM   v$session s,
       v$process p,
       v$parameter pa
WHERE  pa.name = 'user_dump_dest'
AND    s.paddr = p.addr
AND    s.audsid = SYS_CONTEXT('USERENV', 'SESSIONID');

Tracer une session Oracle

Avant la 10G :

 

Activer la trace :

SQL> EXEC DBMS_SYSTEM.set_sql_trace_in_session(sid=>123, serial#=>1234, sql_trace=>TRUE);

Désactiver la trace : 
SQL> EXEC DBMS_SYSTEM.set_sql_trace_in_session(sid=>123, serial#=>1234, sql_trace=>FALSE);

Après la 10G : 

Activer la trace : 

SQL> EXEC DBMS_MONITOR.session_trace_enable(session_id=>1234, serial_num=>1234);
SQL> EXEC DBMS_MONITOR.session_trace_enable(session_id =>1234, serial_num=>1234, waits=>TRUE, binds=>FALSE);

Désactiver la trace : 

SQL> EXEC DBMS_MONITOR.session_trace_disable(session_id=>1234, serial_num=>1234);

Activer/désactiver le dataguard

merci :

 

http://www.lami-dba.com/2018/03/desactiver-active-dataguard.html

Restaurer une base après avoir créé un point de restaure.

RMAN> shutdown immediate
RMAN> startup mount
RMAN> run
2> {
3> set until restore point <nomdupointderestaure>;
4> restore database;
5> recover database;
6> }
 
RMAN> alter database open resetlogs;
database opened
RMAN>

Dataguard - refresh a physical standby dataguard from primary avec RMAN

 

Steps to Refresh a Physical Standby Database with Changes Made to the Primary Database

 

source : https://docs.oracle.com/en/database/oracle/oracle-database/18/spmss/refresh-a-physical-standby-db.html#GUID-828A4953-3F7E-4975-ADA4-5469D6794BB0

 le site inclus les prérequis que l'on oublie souvent:

 

• Oracle Net connectivity is established between the physical standby database and the primary database.

  You can do this by adding an entry corresponding to the primary database in the tnsnames.ora file of the physical standby database.

• The password files on the primary database and the physical standby database are the same.

• The COMPATIBLE parameter in the initialization parameter file of the primary database and physical standby database is set to 12.0.

 

...

4 . (For Active Data Guard only) Perform the following steps to recover redo data and open the physical standby database in read-only mode:

ALTER DATABASE RECOVER MANAGED STANDBY DATABASE UNTIL CONSISTENT;

ALTER DATABASE OPEN READ ONLY;

...

 

Dataguard - start and stop a standby database on server startup

Source : https://www.orafaq.com/forum/t/122395/

 

to start a standby database :

 

#!/bin/bash
ORA_HOME="/opt/oracle/920"
ORA_OWNER="oracle"
SQLCMD="sqlplus '/as sysdba'"
LOGFILE="strt.log"
cat startup.sql | su - $ORA_OWNER  -c "$SQLCMD" > $LOGFILE

 

to shutdown a standby database :

#!/bin/bash
ORA_HOME="/opt/oracle/920"
ORA_OWNER="oracle"
SQLCMD="sqlplus '/as sysdba'"
LOGFILE="sht.log"
cat shutdown.sql | su - $ORA_OWNER  -c "$SQLCMD" > $LOGFILE

 

startup.sql :

startup nomount;
alter database mount standby database;
alter database recover managed standby database disconnect from session;

 

shutdown.sql:

alter database recover managed standby database cancel;
shutdown immediate;
exit