Forum Replies Created

Viewing 15 posts - 13,201 through 13,215 (of 49,552 total)

  • RE: IS NULL in a Case Statement

    Case is not a control flow statement, it can't return portions of the query. It returns expressions (values)

    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 convince people for small changes

    sqlnaive (5/10/2013)


    It has been around an year or little more than that

    That you've been monitoring and recording the index usage stats, taking care to persist the results before server reboots...

    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: sql

    Spam. Reported.

    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 convince people for small changes

    sqlnaive (5/10/2013)


    I was checking in my database and found lots of unused indexes. I found it based on summing up the index seeks, index scans and index lookups and comparing...

    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: NOLOCK clarification please

    nick.welham (5/10/2013)


    I'm interested in when a second user would be able to see that data, or the same user in a later SPROC.

    The same user, immediately, always. A user...

    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: Does BACKUP use the transaction log?

    The backup doesn't write to the transaction log, but while there's a backup in progress space in the log can't be reused. If you're seeing autogrow events, it suggests that...

    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 find and kill Global Variables from tempdb

    I gave you more than enough to look in Books Online....

    sys.dm_db_task_space_usage and sys.dm_db_session_space_usage

    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: NOLOCK clarification please

    nick.welham (5/9/2013)


    1. We are not committing data via transactions or rolling it back. Just simple inserts/updates/deletes.

    If you have inserts, updates and deletes then you have transactions that can get rolled...

    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: What is a semicolon used for in SQL Server?

    Currently it's required at the end of a merge and the end of the statement prior to a CTE. REquirements may well increase in future as the T-SQL language gets...

    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: Weird interview question

    Sean Lange (5/9/2013)


    The difference between delete and truncate is that delete is a dml operation that is fully logged and truncate is DDL operation and is minimally logged. What that...

    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 debug query

    That would have been caused by exactly the same thing that caused the backups to fail, the database being in single-user mode and an existing connection to the database, hence...

    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 can I kill ad-hoc or long time running queries, safely?

    sql-lover (5/9/2013)


    Killing those ad-hoc queries after X minutes will release the IO pressure. So instead of hammering the SAN for 5+ minutes, if they are not done my 1 min...

    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 debug query

    JimS-Indy (5/9/2013)


    ...Even though CPAS could not back up, the error file does seem to show problems with indexes. How do I rebuild all the indexes?

    What error shows problems with...

    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 can I kill ad-hoc or long time running queries, safely?

    Correct, it's CPU and RAM, but how does killing a query that's done a lot of physical IO help? The IO's already done by the time you kill the query,...

    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 debug query

    Description: Executing the query "BACKUP DATABASE [CPAS] TO DISK = N'D:\Data\MSSQL...." failed with the following error: "Database 'CPAS' is already open and can only have one user at a...

    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 - 13,201 through 13,215 (of 49,552 total)