Ora2PG now supports oracle_fdw to increase the data migration speed
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[PostgreSQL] Voir les tables partitionnées
WITH RECURSIVE partition_info(relid, relname, relsize, relispartition, relkind)
AS (SELECT oid AS relid, relname, pg_relation_size(oid) AS relsize, relispartition, relkind
FROM pg_catalog.pg_class
WHERE relkind = 'p' AND relname = 'mof_ple_part' -- Pour une table donnee.
UNION ALL
SELECT c.oid AS relid, c.relname AS relname, pg_relation_size(c.oid) AS relsize,
c.relispartition AS relispartition, c.relkind AS relkind
FROM partition_info AS p, pg_catalog.pg_inherits AS i, pg_catalog.pg_class AS c
WHERE p.relid = i.inhparent AND c.oid = i.inhrelid AND c.relispartition)
SELECT * FROM partition_info;
select relnamespace::regnamespace::text schema_name, oid::regclass::text table_name from pg_class
where relkind = 'p' and oid in (select distinct inhparent from pg_inherits)
order by schema_name, table_name; -
[MSSQL] Disable/Enable FK
disable FK
DECLARE @sql NVARCHAR(MAX) = N'';
;WITH x AS
(
SELECT DISTINCT obj =
QUOTENAME(OBJECT_SCHEMA_NAME(parent_object_id)) + '.'
+ QUOTENAME(OBJECT_NAME(parent_object_id))
FROM sys.foreign_keys
)
SELECT @sql += N'ALTER TABLE ' + obj + ' NOCHECK CONSTRAINT ALL;
' FROM x;EXEC sp_executesql @sql;
enable FK
DECLARE @sql NVARCHAR(MAX) = N'';
;WITH x AS
(
SELECT DISTINCT obj =
QUOTENAME(OBJECT_SCHEMA_NAME(parent_object_id)) + '.'
+ QUOTENAME(OBJECT_NAME(parent_object_id))
FROM sys.foreign_keys
)
SELECT @sql += N'ALTER TABLE ' + obj + ' WITH CHECK CHECK CONSTRAINT ALL;
' FROM x;EXEC sp_executesql @sql;
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[ORACLE]Evaluer une base de données
Il peut être utile d'évaluer une base de données avant de penser à la migrer dans un autre SGBD.
On va alors s'intéresser aux types d'objets qu'elle contient pour valider ou invalider la migration dans tel ou tel SGBDR.
Exemple le plus probant : une migration d'une base oracle dans une base postgreSQL.
La requête suivante générique et passe partout pourra aider à faire l'évaluation.
select (select name from v$database) as database_name, owner,sum(bytes)/1024/1024 as "Number", 'Size in MB' as object_type
from dba_segments
where owner not in ('WMSYS','APPQOSSYS','DBSFWUSER','DBSNMP','AUDSYS','GSMADMIN_INTERNAL','ORACLE_OCM','OUTLN','PUBLIC','REMOTE_SCHEDULER_AGENT','XDB','SYS','SYSTEM')
group by owner
union
select (select name from v$database) as database_name,
col.owner as schema_name, count(distinct col.table_name),
'Lobs' as object_type
from dba_tab_columns col
inner join dba_tables t on col.owner = t.owner and col.table_name = t.table_name
where col.data_type in ('BLOB', 'CLOB', 'NCLOB', 'BFILE')
and col.owner not in ('OAUTHDBSCHEMA','AUDSYS','GSMADMIN_INTERNAL','ANONYMOUS','CTXSYS','DBSNMP','EXFSYS', 'LBACSYS', 'MDSYS', 'MGMT_VIEW','OLAPSYS','OWBSYS','ORDPLUGINS', 'ORDSYS','OUTLN', 'SI_INFORMTN_SCHEMA','SYS','SYSMAN','SYSTEM', 'TSMSYS','WK_TEST', 'WKPROXY','WMSYS','XDB','APEX_040000', 'APEX_PUBLIC_USER','DIP', 'WKSYS', 'FLOWS_30000','FLOWS_FILES','MDDATA', 'ORACLE_OCM', 'XS$NULL', 'SPATIAL_CSW_ADMIN_USR', 'SPATIAL_WFS_ADMIN_USR', 'PUBLIC')
group by col.owner
union
SELECT
(select name from v$database) as database_name,
TABLE_OWNER,count(distinct table_name) as partitionned_tables,'Partitions'
FROM dba_tab_partitions
WHERE TABLE_OWNER not in('WMSYS','SYS','SYSTEM','DBSFWUSER','DBSNMP','AUDSYS','GSMADMIN_INTERNAL','XDB','ORACLE_OCM')
group BY TABLE_OWNER
union
select (select name from v$database) as database_name,
owner,
count(distinct object_name),
'Packages' as object_type
from dba_objects where object_type='PACKAGE' and owner not in ('WMSYS','SYS','SYSTEM','DBSFWUSER','DBSNMP','AUDSYS','GSMADMIN_INTERNAL','XDB','ORACLE_OCM')
group by owner
union
select (select name from v$database) as database_name,
owner,
count(distinct object_name),
'Procedures' as object_type
from dba_objects where object_type='PROCEDURE'
and owner not in ('WMSYS','SYS','OUTLN','REMOTE_SCHEDULER_AGENT','SYSTEM','DBSFWUSER','DBSNMP','AUDSYS','GSMADMIN_INTERNAL','XDB','ORACLE_OCM')
group by owner
union
select (select name from v$database) as database_name,
owner,
count(distinct object_name) , 'Functions'
from dba_objects
where object_type='FUNCTION'
and owner not in ('WMSYS','SYS','OUTLN','REMOTE_SCHEDULER_AGENT','SYSTEM','DBSFWUSER','DBSNMP','AUDSYS','GSMADMIN_INTERNAL','XDB','ORACLE_OCM')
group by owner
union
select (select name from v$database) as database_name,
owner ,
count(distinct trigger_name),'Triggers' as object_type
from dba_triggers
where owner not in ('GSMADMIN_INTERNAL','ANONYMOUS','CTXSYS','DBSNMP','EXFSYS', 'LBACSYS',
'MDSYS', 'MGMT_VIEW','OLAPSYS','OWBSYS','ORDPLUGINS', 'ORDSYS','OUTLN',
'SI_INFORMTN_SCHEMA','SYS','SYSMAN','SYSTEM', 'TSMSYS','WK_TEST',
'WKPROXY','WMSYS','XDB','APEX_040000', 'APEX_PUBLIC_USER','DIP', 'WKSYS',
'FLOWS_30000','FLOWS_FILES','MDDATA', 'ORACLE_OCM', 'XS$NULL',
'SPATIAL_CSW_ADMIN_USR', 'SPATIAL_WFS_ADMIN_USR', 'PUBLIC')
group by owner
union
select (select name from v$database) as database_name,
owner,count(distinct table_name),'Global Temporary Tables'
from dba_tables
where owner not in ('GSMADMIN_INTERNAL','ANONYMOUS','CTXSYS','DBSNMP','EXFSYS', 'LBACSYS',
'MDSYS', 'MGMT_VIEW','OLAPSYS','OWBSYS','ORDPLUGINS', 'ORDSYS','OUTLN',
'SI_INFORMTN_SCHEMA','SYS','SYSMAN','SYSTEM', 'TSMSYS','WK_TEST',
'WKPROXY','WMSYS','XDB','APEX_040000', 'APEX_PUBLIC_USER','DIP', 'WKSYS',
'FLOWS_30000','FLOWS_FILES','MDDATA', 'ORACLE_OCM', 'XS$NULL',
'SPATIAL_CSW_ADMIN_USR', 'SPATIAL_WFS_ADMIN_USR', 'PUBLIC')
and TEMPORARY = 'Y'
group by owner
union
select (select name from v$database) as database_name, OWNER,count(distinct TABLE_NAME) ,'External Tables'
from dba_external_tables
where owner not in ('GSMADMIN_INTERNAL','ANONYMOUS','CTXSYS','DBSNMP','EXFSYS', 'LBACSYS',
'MDSYS', 'MGMT_VIEW','OLAPSYS','OWBSYS','ORDPLUGINS', 'ORDSYS','OUTLN',
'SI_INFORMTN_SCHEMA','SYS','SYSMAN','SYSTEM', 'TSMSYS','WK_TEST',
'WKPROXY','WMSYS','XDB','APEX_040000', 'APEX_PUBLIC_USER','DIP', 'WKSYS',
'FLOWS_30000','FLOWS_FILES','MDDATA', 'ORACLE_OCM', 'XS$NULL',
'SPATIAL_CSW_ADMIN_USR', 'SPATIAL_WFS_ADMIN_USR', 'PUBLIC')
group by owner
union
SELECT (select name from v$database) as database_name,schema,count(distinct namespace),'Context' as object_type
FROM dba_context
where schema not in ('GSMADMIN_INTERNAL','ANONYMOUS','CTXSYS','DBSNMP','EXFSYS', 'LBACSYS',
'MDSYS', 'MGMT_VIEW','OLAPSYS','OWBSYS','ORDPLUGINS', 'ORDSYS','OUTLN',
'SI_INFORMTN_SCHEMA','SYS','SYSMAN','SYSTEM', 'TSMSYS','WK_TEST',
'WKPROXY','WMSYS','XDB','APEX_040000', 'APEX_PUBLIC_USER','DIP', 'WKSYS',
'FLOWS_30000','FLOWS_FILES','MDDATA', 'ORACLE_OCM', 'XS$NULL',
'SPATIAL_CSW_ADMIN_USR', 'SPATIAL_WFS_ADMIN_USR', 'PUBLIC','OCOR_OWN')
group by schema; -
[PostgreSQL] Déploiement d'un cluster PATRONI
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[PostgreSQL] Voir les tablespaces
show default_tablespace ;
alter system set default_tablespace='tbs_msg_data' ;
select pg_reload_conf();
show default_tablespace
show temp_tablespaces ;
alter system set temp_tablespaces='temp' ;
select pg_reload_conf();
show temp_tablespaces -
[PostgreSQL]Kill une session
SELECT *, pg_terminate_backend(pid)
FROM pg_stat_activity
WHERE pid <> pg_backend_pid()
AND datname = '<dbname>';
# kill sessions
# trouver la sessions
select * from pg_stat_activity;
select pg_terminate_backend(pid)
from pg_stat_activity
where pid = 'PID'; -
[HVAULT] Roles creation for dMZR postgreSQL- version batch
Roles creation for dMZR postgreSQL- version batch
script pour la création d'une nouvelle base dans le cloud IBM avec les rôles dans Hashicorp Vault.
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[HVAULT] Roles creation for dMZR postgreSQL
Roles : own , app, devpg
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[Postgres] Migration of roles + DB (including data and privs)
Se connecter sur le serveur cible.
pg_dumpall --roles-only -h remotehost -U remoteuser | psql -h localhost -U localuser
pg_dump -C -h remotehost -U remoteuser dbname | psql -h localhost -U localuser