Question

I’ve got two mySQL servers – offline is version 5.5.25, online is version 5.0.95. I am attempting to run a UNION SELECT to join two result sets together. Both queries extract the same data from the same tables using the same joins – the only difference to each is the where query. Basic syntax is:

(SELECT QUERY A) 
UNION 
(SELECT QUERY B) 
ORDER BY date_created DESC, subscription_rate_id ASC

If I run this query offline, I get this error:

Error Number: 1064

You have an error in your SQL syntax; check the manual that
corresponds to your MySQL server version for the right syntax to use
near ‘INNER JOIN webmaster d ON d.dupe_master_id =
webmaster.webmaster_id IN’ at line 16

If I run the queries separately then both of them work. If I run the whole query ONLINE, it works. This only occurs in my OFFLINE mySQL which is running the newer mySQL version of the two. I believe the error relates to query B – but the same INNER JOIN is in query A.

The query is horrendously long and not easily shortened / broken down which is why I haven’t pasted it here. I will find a way to provide it if absolutely neccessary.

Any help appreciated.

Answer 1

Remove the braces around

FROM (`webmaster`)

to

FROM `webmaster`

See SQL Fiddle for different versions and error message.