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From: | Paul DuBois | Date: | May 10 2002 9:59pm |
Subject: | Re: quick sql question | ||
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At 17:54 -0400 5/10/02, Augey Mikus wrote: >what i meant is deleting duplicate occurences of records of a >certain field. ...sorry... Ah. One thing you can do is add a unique index on that field with ALTER IGNORE TABLE tbl_name ADD UNIQUE (col_name) or ALTER IGNORE TABLE tbl_name ADD PRIMARY KEY (col_name) and MySQL will clobber duplicate records as it builds the index. > > >Paul DuBois wrote: > >>At 17:16 -0400 5/10/02, Augey Mikus wrote: >> >>>what is the simplest way to delete duplicate occurences of a >>>specific field in mysql? >>> >>>thanks, >>> >>>augey >> >> >>Your question is a bit ambiguous. You could do this by using ALTER >>TABLE to remove the column itself from the table, for example, but >>I'm guessing maybe that's not what you mean.
Thread | ||
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• quick sql question | Augey Mikus | 10 May |
• Re: quick sql question | Paul DuBois | 10 May |
• Re: quick sql question | Augey Mikus | 10 May |
• Re: quick sql question | Paul DuBois | 10 May |
• Re: quick sql question | Augey Mikus | 10 May |
• Re: quick sql question | Paul DuBois | 10 May |
• Re: quick sql question | Augey Mikus | 11 May |
• Re: quick sql question | Augey Mikus | 11 May |
• Re: quick sql question | Paul DuBois | 11 May |
• Repair with key cache | sup-mysql | 11 May |
• Re: Repair with key cache | Benjamin Pflugmann | 11 May |
• Re: Repair with key cache | sup-mysql | 11 May |
• Re: Repair with key cache | Paul DuBois | 12 May |
• Re: Repair with key cache | sup-mysql | 12 May |
• Re: Repair with key cache | sup-mysql | 12 May |
• Re: Repair with key cache | Paul DuBois | 12 May |
• Re: Repair with key cache | sup-mysql | 12 May |
• Re: Repair with key cache | Jeremy Zawodny | 12 May |
• RE: Repair with key cache | Ramon Arias | 13 May |
• Re: Repair with key cache | Jeremy Zawodny | 13 May |
• Re: quick sql question | Augey Mikus | 11 May |