Beefy Boxes and Bandwidth Generously Provided by pair Networks
Pathologically Eclectic Rubbish Lister
 
PerlMonks  

Answer: How do I get "table.column" format from a select/join?

( #739361=categorized answer: print w/ replies, xml ) Need Help??

Q&A > database programming > How do I get "table.column" format from a select/join? contributed by derobert

Do not use SELECT *. Not only are you probably pulling far more data than you need (which may or may not matter, depending on how big that data is) but as you've noticed, duplicate field names are problematic and make your code fragile (what happens when the DBA adds another column?). Instead, select exactly the columns you need, and under the names you want:
SELECT p.gene_id AS parent_gene_id, c.gene_id AS child_gene_id, c.name AS child_name FROM parent p LEFT JOIN child c ON ( p.gene_id = c.gene_id ) /* etc. */

Comment on Answer: How do I get "table.column" format from a select/join?
Select or Download Code
Log In?
Username:
Password:

What's my password?
Create A New User
Chatterbox?
and the web crawler heard nothing...

How do I use this? | Other CB clients
Other Users?
Others browsing the Monastery: (18)
As of 2014-08-27 17:14 GMT
Sections?
Information?
Find Nodes?
Leftovers?
    Voting Booth?

    The best computer themed movie is:











    Results (247 votes), past polls