Re: select into

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От Mulham freshcode
Тема Re: select into
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Msg-id 20061123171909.89660.qmail@web90510.mail.mud.yahoo.com
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Ответ на Re: select into  ("A. Kretschmer" <andreas.kretschmer@schollglas.com>)
Ответы Re: select into
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Hi,<br />    Thanks very much for all the suggestions. Like Andreas said i have to use EXECUTE to do this. That was my
guesstoo but i was putting the INTO cluase into the string before executing it. This is a step forward. The problem now
isgetting the into to work with a record. Am using a RECORD variable after declaring it in the INTO clause. pg is
complaining<br /><br />   ERROR:  record "svc_data_rec" is not assigned yet<br />   DETAIL:  The tuple structure of a
not-yet-assignedrecord is indeterminate.<br />   CONTEXT:  PL/pgSQL function "foo" line 130 at execute statement<br
/><br/>   I read in the docs the following, "The INTO clause specifies where the results of a SELECT command should be
assigned.If a row or variable list is provided, it must exactly match the structure of the results produced by the
SELECT(when a record variable is used, it will configure itself to match the result's structure automatically)." That i
taketo mean that the above is ok. But it ain't.<br /><br />Thanks again for your guys help...<br /><br /><br
/><b><i>"A.Kretschmer" <andreas.kretschmer@schollglas.com></i></b> wrote:<blockquote class="replbq"
style="border-left:2px solid rgb(16, 16, 255); margin-left: 5px; padding-left: 5px;"> am Wed, dem 22.11.2006, um
0:28:15-0800 mailte Mulham freshcode folgendes:<br />> Hi guys,<br />> <br />> Am new to sql scripting so this
mightbe a stupid question. Am getting an<br />> error while trying to do the following<br />> <br />> SELECT
INTOsvc_data_rec * from svc_tbl_name where 'uid' = sub_id;<br />> <br />> where svc_data_rec is defined as record
andsvc_tbl_name is a varchar that<br />> holds the name of a table and sub_id is another varchar. the error message
is<br/><br />You should rewrite your plpgsql-function. You can't handle with<br />string-vars in this way, you must
createa string with your complete sql<br />and EXECUTE this string.<br /><br />Read<br
/>http://www.postgresql.org/docs/8.1/interactive/plpgsql-statements.html#PLPGSQL-STATEMENTS-EXECUTING-DYN<br/><br /><br
/>Andreas<br/>-- <br />Andreas Kretschmer<br />Kontakt: Heynitz: 035242/47215, D1: 0160/7141639 (mehr: -> Header)<br
/>GnuPG-ID:0x3FFF606C, privat 0x7F4584DA http://wwwkeys.de.pgp.net<br /><br />---------------------------(end of
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subscribe-nomailcommand to majordomo@postgresql.org so that your<br /> message can get through to the mailing list
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