show all tables in oracle
SELECT * FROM USER_TABLES; -- Tables from connected schema
SELECT * FROM ALL_TABLES; -- Tables available to connected schema
SELECT * FROM ALL_TABLES WHERE OWNER = 'SCHEMA_NAME';
SELECT * FROM ALL_TABLES WHERE TABLE_NAME = 'TABLE_NAME';
SELECT * FROM DBA_TABLES; -- All database Tablesoracle list tablespaces
SELECT DISTINCT TABLESPACE_NAME FROM DBA_EXTENTS ORDER BY TABLESPACE_NAME;
SELECT TABLESPACE_NAME,
sum(BYTES / 1024 / 1024) AS MB
FROM DBA_DATA_FILES GROUP BY TABLESPACE_NAME;oracle tablespace tables list
SELECT e.OWNER, e.SEGMENT_NAME, e.TABLESPACE_NAME, sum(e.bytes) / 1048576 AS Megs
FROM dba_extents e
WHERE
e.OWNER = 'MY_USER' AND
e.TABLESPACE_NAME = 'MY_TABLESPACE'
GROUP BY e.OWNER, e.SEGMENT_NAME, e.TABLESPACE_NAME
ORDER BY e.TABLESPACE_NAME, e.SEGMENT_NAME;Copyright © 2021 Codeinu
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