notas:bases_de_datos:oracle
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Oracle
Notas de Oracle
List all users/schema
SET PAGESIZE 50 SELECT DISTINCT USERNAME FROM DBA_USERS;
List ONLY your tables
SET PAGESIZE 80 COL TABLE__NAME FORMAT a30; COL TABLE_TYPE FORMAT a30; SELECT * FROM CAT;
List the Oracle Tablespaces and free space
SELECT * FROM v$TABLESPACE;
List the free space for all Oracle Tablespaces within a Database
SELECT * FROM DBD_FREE_SPACE WHERE TABLESPACE_NAME = 'IATOR';
List the space ALREADY USED for a specific Oracle Tablespace
SELECT * FROM DBA_SEGMENTS WHERE TABLESPACE_NAME = 'myTABLESPACE';
List extents for segments
SELECT TABLESPACE_NAME, COUNT(*), MAX(blocks), SUM(blocks) FROM dba_free_space GROUP BY TABLESPACE_name;
See all the tables you have access to:
SET PAGESIZE 90 COLUMN "OBJECT NAME" format a26 COLUMN "OBJECT TYPE" format a20 SELECT object_name "OBJECT NAME", object_type "OBJECT TYPE" FROM user_objects WHERE object_type = 'TABLE';
See your TABLESPACE
SELECT TABLESPACE_NAME FROM ALL_TABLES WHERE TABLE_NAME = '<your_table>'
Consulta para calcular el espacio total, el ocupado y el espacio libre de un TABLESPACE :
SET pagesize 0 SET numf '9999999.99' SELECT NVL(b.free,0.0),a.total,100 - trunc(NVL(b.free,0.0)/a.total * 1000) / 10 prc FROM ( SELECT tablespace_name,SUM(bytes)/1024/1024 total FROM dba_data_files GROUP BY tablespace_name) A LEFT OUTER JOIN ( SELECT tablespace_name,SUM(bytes)/1024/1024 free FROM dba_free_space GROUP BY tablespace_name) B ON a.tablespace_name=b.tablespace_name WHERE a.tablespace_name='NOMBRE_TABLESPACE'
notas/bases_de_datos/oracle.1415899511.txt.gz · Última modificación: 2014/11/13 17:25 por cayu