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QUERY DATAGUARD AND STANDBY STATUS

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Blocking session on RAC database

Blocking session on RAC database Blocking session of the databases Generate the report for Blocking session The SQL will provide Blocking sessions with SID, node information SELECT DISTINCT S1.USERNAME || '@' || S1.MACHINE || ' ( INST=' || S1.INST_ID || ' SID=' || S1.SID || ' ) IS BLOCKING ' || S2.USERNAME || '@' || S2.MACHINE || ' ( INST=' || S1.INST_ID || ' SID=' || S2.SID || ' ) ' AS BLOCKING_STATUS FROM GV$LOCK L1, GV$SESSION S1, GV$LOCK L2, GV$SESSION S2 WHERE S1.SID=L1.SID AND S2.SID=L2.SID AND S1.INST_ID=L1.INST_ID AND S2.INST_ID=L2.INST_ID AND L1.BLOCK > 0 AND L2.REQUEST > 0 AND L1.ID1 = L2.ID1 AND L1.ID2 = L2.ID2; Blockers information select s1.username || '@' || s1.machine  || ' ( SID=' || s1.sid || ' ) is blocking '  || s2.username || '@' || s2.machine || ' ( SID=' || s2.sid || ' ) ' AS blocking_status from gv$lock l1, gv$session s...
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Finding object size in Oracle database

Ref: http://www.runningoracle.com/product_info.php?cPath=2_44&products_id=153 Finding object size in Oracle database is very important and common. Is it very useful to know the exact size occupied by the object at the tablespace. The object size in the following scripts is in Mbytes. The scripts have been formatted to work very easily with TOAD SQL Editor. For example you can filter with tablespace_name, or owner, or size (for example more than 1GByte)  SELECT owner, segment_name, segment_type, partition_name, ROUND(bytes/(1024*1024),2) SIZE_MB, tablespace_name  FROM DBA_SEGMENTS  WHERE SEGMENT_TYPE IN ('TABLE', 'TABLE PARTITION', 'TABLE SUBPARTITION',  'INDEX', 'INDEX PARTITION', 'INDEX SUBPARTITION', 'TEMPORARY')  --AND TABLESPACE_NAME LIKE 'COSTE%'  --AND SEGMENT_NAME LIKE 'P2010201%'  --AND partition_name LIKE 'P20100201%' --AND segment_type = 'TABLE' --AND OWNER = 'TARG...
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