Re: How can I drop a column from a table?
From: Henri M.B. van den Bulk <hvdbulk_at_lgc.com>
Date: 1996/07/31
Message-ID: <31FF639C.4487_at_lgc.com>#1/1
Date: 1996/07/31
Message-ID: <31FF639C.4487_at_lgc.com>#1/1
Jarmo Tuominen wrote:
>
> What is the best way to drop a column from the table? Is there any command for this?
>
> Jarmo Tuominen
There is not realy a command that will drop a column. The best thing to do is to create a copy of the table then drop the original one and rename the copy.
CREATE TABLE tmp_table AS SELECT columns (without the one you want to drop) FROM original_table; DROP original table RENAME tmp_table TO original_table
Remember that if you have triggers on you original table, that you have to recreate them.
Hope this helps.
-- Henri M.B. van den Bulk http://tulsix.utulsa.edu/~hvdbulk/ Landmark Graphics Corp., Drilling & Well Services Product GroupReceived on Wed Jul 31 1996 - 00:00:00 CEST