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Showing posts with label ClearingCache. Show all posts
Showing posts with label ClearingCache. Show all posts

Wednesday, 20 July 2011

How to clear data from cache memory

How to clear data from cache memory

data cache

as of 15.0.3 - dbcc cachedataremove(dbid | dbname, objid | objname, partitionid | partitionname, indid | indexname)
you need sa_role for that as well

pre-15.0.2 ESD6 - try sp_unbindcache_all 'default data cache'
for example to clear "default data cache".  For named data caches, you should do this, followed by a sp_bindcache again for each object bound to a named cache
statement cache

set statement_cache off    -- session level
<your sql statements here>
or
sp_configure 'statement cache size',0  -- server level
procedure cache

In 12.5.4 ESD5 and 15.0.2 :   dbcc proc_cache (free_unused)

pre 12.5.4 ESD5:    dbcc proc_cacherm(type, dbname, objname)

where: type is V,P,T,R,D,C,F, or S (must be uppercase) corresponds to View, Proc, Trigger, Rule, Default, Cursor, SQLJ Function, SQL function.

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Most useful Sybase URLs to understand ASE 15 Performance issues