troubleshooting Question

SQL Select multiple tables

Avatar of Richard Korts
Richard KortsFlag for United States of America asked on
MySQL Server
6 Comments1 Solution406 ViewsLast Modified:
See attached; I have two tables with all the same columns EXCEPT one.

I'm trying to do this:

SELECT * from task, cl_task c where c.cid = 0 order by tgroup, category, subcategory, subsubcategory

I get:

#1052 - Column 'tgroup' in order clause is ambiguous

Of course tgroup is in both tables, as is category, subcategory, etc.

Do I have to use union or join or ??
Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 6 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 6 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros