I am converting some code from MSSQL to MySQL. In one place I need to
have a conditional query depending on if a table exists or not. There
are different versions of this application and the table only exists in
some of them. Here is how it was done in MSSQL:
IF OBJECT_ID('cfgbiz') IS NOT NULL
Ryan,
I am converting some code from MSSQL to MySQL. In one place I need to
have a conditional query depending on if a table exists or not. There
are different versions of this application and the table only exists in
some of them. Here is how it was done in MSSQL:
If 'SHOW COLUMNS FROM
If 'SHOW COLUMNS FROM tablename' returns error 1146 (42S02), the
table doesn't exist.
This causes my application (ColdFusion) to throw an exception.
If I have to, I could resort to doing another query in my application
(SHOW TABLES) and seeing if my table was returned in that list. But I
was
Ryan Stille wrote:
If I have to, I could resort to doing another query in my application
(SHOW TABLES) and seeing if my table was returned in that list. But I
was hoping for a more elegant way to do it, within the single query.
Maybe you could use
SHOW TABLES LIKE 'your_table';
--
Keith
On Thursday 06 October 2005 10:57 am, Ryan Stille wrote:
I am converting some code from MSSQL to MySQL. In one place I need to
have a conditional query depending on if a table exists or not. There
are different versions of this application and the table only exists in
some of them. Here is
Maybe you could use
SHOW TABLES LIKE 'your_table';
That's a great idea, I just tried it in several ways, like:
IF EXISTS (SHOW TABLES LIKE 'cfgbiz') THEN
SELECT siacnotifyto FROM cfgbiz
ELSE
SELECT '' as siacnotifyto
END IF;
-and-
select IF((SHOW TABLES LIKE
