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Razorbx13's avatar
Razorbx13
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5 years ago
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Database Locks

Hi all, I have seen other posts here but am having an issue that does not appear to be explained in these posts.  So when I import new data is a lock occurring on the source database by PowerBI?  I a...
  • v-luwang-msft's avatar
    5 years ago

    Hi Razorbx13 ,

    I test it ,when I import data.

    And I use the following to query if the table is locking in the sqlserver.

    select   request_session_id   spid,OBJECT_NAME(resource_associated_entity_id) tableName   
    from   sys.dm_tran_locks where resource_type='OBJECT'

    Retrun me blank.

    So in my opinion, when exporting, there is no lock, you can use the above query statement to query the lock process when you import slowly.Generally, locking a table only occurs when there are additions, deletions, and changes to the table.

    View locked tables:
    
    select   request_session_id   spid,OBJECT_NAME(resource_associated_entity_id) tableName   
    from   sys.dm_tran_locks where resource_type='OBJECT'
    
    spid   lock  Process
    tableName   Locked Table Name
    
    Unlocked:
    
    declare @spid  int 
    Set @spid  = 57  --Lock table process
    declare @sql varchar(1000)
    set @sql='kill '+cast(@spid  as varchar)
    exec(@sql)

    Does Select query Lock the table

     

     

    Did I answer your question? Mark my post as a solution!


    Best Regards

    Lucien