Oracle Data Dictionary description

Gradually record the creation, content, and meaning of Oracle Data Dictionary tables.

It is a process of learning by yourself. You can use it as a record for reference.

View_Name	Meanings	Come from
GV $ ENQUEUE_LOCK	This view displays all locks owned by enqueue state objects.	SELECT /*+ ORDERED USE_NL(L), USE_NL(S),USE_NL(R) +*/ s.inst_id, l.addr, l.ksqlkadr, s.ksusenum, r.ksqrsidt, r.ksqrsid1, r.k sqrsid2, l.ksqlkmod, l.ksqlkreq, l.ksqlkctim, l.ksqlklblk FROM x$ksqeq l, x$ksuse s, x$ksqrs r WHERE l.ksqlkses = s.addr AND BITAND (l.kssobflg, 1) != 0 AND (l.ksqlkmod != 0 OR l.ksqlkreq != 0) AND l.ksqlkres = r.addr
GV $ PARAMETER	Displays information about the initialization parameters.	SELECT x.inst_id, x.indx + 1, ksppinm, ksppity, ksppstvl, ksppstdf, DECODE (BITAND (ksppiflg / 256, 1), 1, 'TRUE', 'FALSE'), DECODE (BITAND (ksppiflg / 65536, 3), 1, 'IMMEDIATE', 2, 'DEFERRED', 3, 'IMMEDIATE', 'FALSE' ), DECODE (BITAND (ksppstvf, 7), 1, 'MODIFIED', 4, 'SYSTEM_MOD', 'FALSE'), DECODE (BITAND (ksppstvf, 2), 2, 'TRUE', 'FALSE'), ksppdesc, ksppstcmnt FROM x$ksppi x, x$ksppcv y WHERE (x.indx = y.indx) AND ((TRANSLATE (ksppinm, '_', '#') NOT LIKE '#%') OR (ksppstdf = 'FALSE') )
GV $ RESOURCE_LIMIT	Global resource use for some of the system resources	SELECT inst_id, ksurlmnm, ksurlmcv, ksurlmmv, LPAD (DECODE (BITAND (ksurlmfg, 1), 0, TO_CHAR (ksurlmia), 'UNLIMITED' ), 10 ), LPAD (DECODE (BITAND (ksurlmfg, 2), 0, TO_CHAR (ksurlmlv), 'UNLIMITED' ), 10 ) FROM x$ksurlmt
GV $ SEGSTAT	Displays information about segment-level statistics	select inst_id, fts_tsn, fts_objn, fts_objd, fts_statnam, fts_statid, fts_stavalfrom x$ksolsftswhere fts_inte = 0

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