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;show tablespace oracle
Select t.tablespace_name "Tablespace", t.status "Status",
ROUND(MAX(d.bytes)/1024/1024,2) "MB Size",
ROUND((MAX(d.bytes)/1024/1024) -
(SUM(decode(f.bytes, NULL,0, f.bytes))/1024/1024),2) "MB Used",
ROUND(SUM(decode(f.bytes, NULL,0, f.bytes))/1024/1024,2) "MB Free",
t.pct_increase "% increase",
SUBSTR(d.file_name,1,80) "File"
FROM DBA_FREE_SPACE f, DBA_DATA_FILES d, DBA_TABLESPACES t
WHERE t.tablespace_name = d.tablespace_name AND
f.tablespace_name(+) = d.tablespace_name
AND f.file_id(+) = d.file_id GROUP BY t.tablespace_name,
d.file_name, t.pct_increase, t.status ORDER BY 1,3 DESCCopyright © 2021 Codeinu
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