WebBecause even if you delete all the rows of the table, the High Water Mark is not decreased - it is never decreased, to allow for maximum concurrency (Oracle is dead serious about maximizing concurrency i.e. performance and scalability; it's the main reason behind its success in Enterprise applications). WebIn this version of an Oracle table high-water mark script, you pass the table_name as an argument to the code: set linesize 300 set serveroutput on set verify off declare cursor cu_tables is select a.owner, a.table_name from all_tables a where a.table_name = decode (upper ('&&table_name'),'all',a.table_name,upper ('&&table_name'))
DBA_HIGH_WATER_MARK_STATISTICS - Oracle Help …
WebMar 29, 2012 · High Water Mark (HWM) for a table in an Oracle Database is the line between blocks that have been used and ones that have never been. Truncating a table resets the … WebAnswer: The high water mark (HWM) for an Oracle table is a construct that shows the table at its greatest size. Just as a lake has a high-water mark after a draught, an Oracle table … csr broadcom bluetooth
ALTER TABLE ... SHRINK SPACE Command - ORACLE-BASE
WebIn what way "Oracle High Water Mark " affects the Performance in Oracle? Check detailed explanation on "how to Resolve High Water Mark in Oracle" !!.Offers ... WebApr 2, 2008 · Shrinking High Water Mark I have noticed that the HWM will only go down if the table is truncated. If I do the following will it lower the HWM:CREATE TABLE temp AS SELECT * FROM table_name;TRUNCATE table_name;INSERT INTO table_name SELECT * FROM temp;COMMIT;This has been successful at times in lowering t WebNov 19, 2007 · Hi there, There is something called High HWM and also low HWM.Can someone please explain to me what are they? Thanks and regards, Aman.... csr breaker eaton