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Asked: 2026-06-05T16:24:34+00:00

I am summer intern new to T-SQL and I have to run an sql

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I am summer intern new to T-SQL and I have to run an sql select statement on various databases. What I would like to do is use ‘if exists’ to keep an error from occuring because some of the databases on the list to have this statement executed on no longer exist. However, I cannot figure out how to apply it to my statement. Any help would be greatly appreciated. Below is the statment me and another intern wrote:

select distinct mg.MatterName, mg.ClientNumber, mg.MatterNumber,grp.groupName as SecurityGroup
from (select distinct mat.matterName, mat.clientNumber, mat.matterNumber, usr.GroupID
    from <db_name>.dbo.matter mat
    inner join <db_name>.dbo.usrAccount usr
    on usr.NTlogin=mat.matterCreateBy) as mg
          inner join <db_name>.dbo.usrGroup grp
          on mg.groupID=grp.groupID
order by matterName

the < db_name> is where the passed in parameter that is the name of the database, would go.

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1 Answer

  1. Editorial Team

    You could use sp_MSforeachdb to enumerate all of the databases on the instance.

    This would be similar to:

    exec sp_MSforeachdb 'select distinct mg.MatterName, mg.ClientNumber, mg.MatterNumber,grp.groupName as SecurityGroup from (select distinct mat.matterName, mat.clientNumber, mat.matterNumber, usr.GroupID     from ?.dbo.matter mat     inner join ?.dbo.usrAccount usr     on usr.NTlogin=mat.matterCreateBy) as mg           inner join ?.dbo.usrGroup grp           on mg.groupID=grp.groupID order by matterName'

    Alternatively, you could use dynamic sql to manufacture a script:

    select 'use ' + name + ';' + char(13) + 'select distinct mg.MatterName, mg.ClientNumber, mg.MatterNumber,grp.groupName as SecurityGroup' +CHAR(13) + 'from (select distinct mat.matterName, mat.clientNumber, mat.matterNumber, usr.GroupID' + char(13) + 'from dbo.matter mat' + char(13) + 'inner join dbo.usrAccount usr on usr.NTlogin=mat.matterCreateBy) as mg' + char(13) + 'inner join dbo.usrGroup grp on mg.groupID=grp.groupID' + CHAR(13) + 'order by matterName;'
from master.sys.databases where database_id>4

    If you redirect your output to “Results to Text” in SSMS then run the script, you will see a script written that you can then put into a query editor to execute.

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