https://community.appian.com/discussions/f/data/17627/is-it-possible-to-query-all-tables-in-1-sql-query-where-2-particular-columns-are-nullHello, I need to create a single SQL query which returns all the tables where the columns CREATED_By and UPDATED_BY are NULL. I was able to do it on individual table which returns the rows where value is NULL, but i want all Tables Names only in databaseen-USTelligent Community 12https://community.appian.com/thread/69484?ContentTypeID=1Fri, 20 Sep 2019 12:30:14 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:609eb0dd-5d0f-4e65-84ef-5487e4c109c0kunals0003<p>Hi Siva,</p> <p>As Robert mentioned, you can do this via a stored proc call by writing dynamic SQL and taking a parameter for &quot;TABLE_NAME&quot;. It will replace the actual select query&#39;s table name in run time by passing an input. If you want to do this for each table then a looping function can be utilized.</p> <p>Keep in mind the size of tables and the number of tables you&#39;re looping on though.</p><div style="clear:both;"></div>https://community.appian.com/thread/69443?ContentTypeID=1Wed, 18 Sep 2019 21:06:50 GMTd3a83456-d57b-489c-a84c-4e8267bb592a:9d85d175-bccd-40ed-8e34-e520d1506f56Robert Shankin<p>Hi Siva,&nbsp;<br /><br />Technically, you could probably do this with a stored procedure having output parameters, or a tabular function.&nbsp; This is going to be expensive to run.</p> <p>What&#39;s your use case?<br />Are you planning something to do routinely, or are you planning cleanup?<br />Do you really want every table in the db?</p><div style="clear:both;"></div>