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Posted: **15 Nov 2014, 15:34**

I have 2 tables with same column names in my database which are supposed to provide content in 2 languages.
This is how I query for one table (this query is executed correctly):

Code: Select all

$sql = "SELECT * FROM tab_en WHERE time > $from";

However, when I try to do it for 2 tables:

Code: Select all

$sql = "SELECT * FROM tab_en, tab_es WHERE time > $from";

I am getting the error. What am doing wrong?

Posted: **15 Nov 2014, 15:44**

The mysql is confused when you select columns with same name. The solution is to use Alias ( AS ).

Code: Select all

$sql = "SELECT en.col1 AS c1en, en.col2 AS c2en, es.col1 AS c1es, es.col2 AS c2es FROM tab_en AS en, tab_es AS es WHERE time > $from";

- The same technique can be applied when you use JOIN with tables that have columns with same names.

Code: Select all

$sql = "SELECT en.col1 AS c1en, en.col2 AS c2en, es.col1 AS c1es, es.col2 AS c2es FROM tab_en AS en
LEFT JOIN tab_es AS es ON en.id = es.id
WHERE en.time > $from";

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How do I SELECT same column name from multiple tables

How do I SELECT same column name from multiple tables

How do I SELECT same column name from multiple tables