Re: how to add to a set
Bob Hall writes:
>>What I want to do is something like this...a set variable in a table
>>has a current value of "a,b,c" and I want to add the value "d" to it
>>so the new value is now "a,b,c,d". The type is already defined as
>>setval SET ('a', 'b', 'c', 'd', 'e', 'f')
>Ma'am, by variable, do you mean a column in a row? Try
>UPDATE table_name SET column_name = Concat(column_name, ",d") WHERE ...
This worked perfectly, thanks!
--Cindy
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Re: how to add to a set
>OK, is there an easy way to ADD a value to a set type without having
>to enumerate all that's there already? I've looked through
>http://www.mysql.com/documentation/mysql/bychapter/manual_Reference.html#SET
>
>but it doesn't say anything about adding values to the current set.
>It rather looks like all or nothing, but I was hoping to avoid having
>to retrieve the record via a select before doing the update.
>
>What I want to do is something like this...a set variable in a table
>has a current value of "a,b,c" and I want to add the value "d" to it
>so the new value is now "a,b,c,d". The type is already defined as
>setval SET ('a', 'b', 'c', 'd', 'e', 'f')
>
>
>Thanks,
>--Cindy
Ma'am, by variable, do you mean a column in a row? Try
UPDATE table_name SET column_name = Concat(column_name, ",d") WHERE ...
Bob Hall
Know thyself? Absurd direction!
Bubbles bear no introspection. -Khushhal Khan Khatak
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how to add to a set
OK, is there an easy way to ADD a value to a set type without having
to enumerate all that's there already? I've looked through
http://www.mysql.com/documentation/mysql/bychapter/manual_Reference.html#SET
but it doesn't say anything about adding values to the current set.
It rather looks like all or nothing, but I was hoping to avoid having
to retrieve the record via a select before doing the update.
What I want to do is something like this...a set variable in a table
has a current value of "a,b,c" and I want to add the value "d" to it
so the new value is now "a,b,c,d". The type is already defined as
setval SET ('a', 'b', 'c', 'd', 'e', 'f')
Thanks,
--Cindy
--
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