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Select * FROM all tables? MySQL

I've got a database I'm working with where there's an ever expanding number of tables - associated by a specific row (let's call it "blah").

Instead of doing joins - is there syntax for me to basically say...

"SELECT * FROM all tables
WHERE blah = 'whatever'

?
0
erzoolander
Asked:
erzoolander
2 Solutions
 
Mike EghtebasDatabase and Application DeveloperCommented:
assuming blah is a column name and string, use:

SELECT blah FROM Table1
WHERE blah = 'whatever'

will work.

If there another table with field blah, then use:

SELECT blah FROM Table1 Union
SELECT blah FROM Table2
WHERE blah = 'whatever'

and so on.

There is a way to query system tables to get the names and the [blah]s exist in the database and then design a proc to search for the information you need.

Mike
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Bitaseme MboeDeveloperCommented:
This was done in SQL Server but...
SELECT * FROM sys.tables ...

Open in new window

should do the trick for you. You may have to modify the syntax to fit MY SQL.
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Ray PaseurCommented:
I believe you can do something like this.  It would be easy to test.  You may have to provide aliases for the column names to eliminate ambiguity.  This is not a query you would want to run in a production environment!

SELECT * FROM table1, table2, table3...
0
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