Forum Replies Created

Viewing 15 posts - 7,036 through 7,050 (of 49,552 total)

  • RE: Drive Spaces - Database size

    Depends how often you want to add space to your drives.

    There's no need to have free space on the drive, as long as there's free space in the database files.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Profiler Permission?

    ALTER TRACE

    And tell them to never use the Profiler GUI against a production server.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Database Performance Improves After Database Restore

    Too much of a hardware difference to say anything useful.

    Execution plans of fast and slow?

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Isolation level read commited snapshot

    TheBI (12/11/2014)


    Too many deadlocks and timeouts?

    ???

    and read commited snapshot is supposet to eliminate it

    There's no isolation level that will eliminate timeouts. Timeouts are a result of queries running longer than...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: how to identiyfy memory requirement to run the query

    Megha P (12/10/2014)


    Whenever ,i run query it shows in suspended states for a while in activity monitor,then in running states afterwards again in suspended states..and so on.so i thought ...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Isolation level read commited snapshot

    With read committed snapshot on, any request for read committed actually gets read committed snapshot. It's not a separate isolation level, it's read committed done with row versions.

    Anything requesting serialisable...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Alter Active/passive two nodes to Active/Active cluster

    Active-active never meant that both nodes were serving the same databases. That's never been how SQL clustering works. Active-active, before it went out of favour, used to mean two nodes...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: deciphering deadlock resource list

    No, you're breaking it up wrong (because the indentation's been lost)

    Resource 1:

    pagelock fileid=1 pageid=539 dbid=5 objectname=databaseA_Live.dbo.TIMESHEET_HEADER id=lock30fdc4c00 mode=SIX associatedObjectId=72057602758672384

    owner-list

    owner id=process190617708 mode=SIX

    waiter-list

    waiter id=process4c87288 mode=S requestType=wait

    Resource 2 (which is actually the exact...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Isolation level read commited snapshot

    If the isolation level is enabled then you get the TempDB hit even if sessions are requesting other isolation levels. It's not necessarily going to be heavily used, depends on...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Tempdb Log file location - SQL Server would not create it

    OS error 5 is access denied.

    If it's a share check the permissions on the share and the folder. Make sure that there isn't an existing file of the matching...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: deciphering deadlock resource list

    This may be of use

    https://www.simple-talk.com/sql/performance/sql-server-deadlocks-by-example/

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: how to identiyfy memory requirement to run the query

    Megha P (12/10/2014)


    I found only CompileMemory Tag in Xml plan.Also don't found <MemoryFractions> tag.

    Is there anything that will be generated for memory grant in xml execution plan ?

    Could be the...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: Global Temp Table

    Jason-299789 (12/10/2014)


    GilaMonster (12/10/2014)


    Probably the limit of the number of objects in a database. That's 2.3 billion, give or take.

    Memory is NOT the limit as temp tables are not memory-only.

    Over and...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: how to identiyfy memory requirement to run the query

    Not a perfmon counter. A property of the final operator in the query plan.

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass
  • RE: VARBINARY(MAX) to XML

    Assuming that the contents are already valid XML, then

    ALTER TABLE <table name> ALTER COLUMN <column name> XML

    should do it.

    If the contents aren't valid XML, you'll have to fix...

    Gail Shaw
    Microsoft Certified Master: SQL Server, MVP, M.Sc (Comp Sci)
    SQL In The Wild: Discussions on DB performance with occasional diversions into recoverability

    We walk in the dark places no others will enter
    We stand on the bridge and no one may pass

Viewing 15 posts - 7,036 through 7,050 (of 49,552 total)