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From:Carol Walter Date:Tue Jun 16 17:15:40 2009
Subject:Re: Postgres query failing, not enough info for debugging...
Yes, I have read that documentation. I have other queries in this
same program with a similar structure that do work. One of these is
as follows:

$pg_pres_ins4 = pg_query_params("INSERT INTO \"brdgPresenters
\" (\"peopleId\",\"presentationEventId\") VALUES ($1,
currval('\"brdgPresentationsEvents_presentationEventId_seq
\"'))",array($choose_name));

The above query works fine.

Part of the problem is that the currval function requires that the
parameter be enclosed in single quotes. Because the person who created
this database used the upper-lower case naming convention, postgres
requires the datanames be inclosed in double quotes. I can either
enclose the whole query in single or double quotes, but either way one
of them will have to be escaped when using the currval function. I
don't know if that's where the problem lies, but it certainly
complicates the query more that it needs to be.

According to /www.postgresql.org/docs/8.3, the syntax is as follows:
nextval('foo') operates on sequence foo
nextval('FOO') operates on sequence foo
nextval('"Foo"') operates on sequence Foo

currval is analogous to nextval but works on the current value of the
sequence and not the next value of the sequence. The third form is
what I have to use because of the upper-lower case thing. I also
tried the "returning" clause on my insert query, but that doesn't seem
to work either.

Thanks,

Carol


On Jun 16, 2009, at 12:08 PM, Jason Gerfen wrote:

> Jason Gerfen wrote:
>> Carol Walter wrote:
>>> Hello,
>>>
>>> I'm using PHP 5 and PostgreSQL 8.3.6. I have a query that is
>>> failing and I don't know how to troubleshoot the problem. The
>>> error message that it is giving is quite vague. The error message
>>> is as follows:
>>>
>>>
>>> Warning: pg_query_params() [function.pg-query-params]: Query
>>> failed: ERROR: syntax error at end of input at character 156 in /
>>> home/walterc/ssl/PHP/km_input_test2c.php on line 631
>>> ERROR: syntax error at end of input at character 156
>>>
>>> The query that is failing looks like this...
>>>
>>> $pg_pres_ins6 = pg_query_params("INSERT INTO \"brdgMediaCallsEvents
>>> \" (\"mediumId\", \"eventId\", rank) VALUES
>>> ((currval('\"tblMedia_mediumId_seq\"'),
>>> (currval('\"tblCallsEvents_eventId_seq\"'), $1)", array($ev_rank));
>>> echo pg_last_error($pg_connection);
>
> Whoops, ignore the last one I forget a single quote after the actual
> sql string
>
>> Perhaps try:
>> $pg_pres_ins6 = pg_query_params( $pg_connection, 'INSERT INTO
>> `brdgMediaCallEvents` ( `mediumId`, `eventId`, `rank` ) VALUES
>> ( \"val1\", \"val2\", \"val3\" )', array( "ev_rank" ) );
>> You need to read the document for this function because it looks
>> like you were mis-using it.
>> http://us3.php.net/manual/en/function.pg-query-params.php
>>>
>>> It's quite possible this is something very simple and I'm just not
>>> seeing it. I commented out this query because I thought perhaps
>>> it was failing because it was the last query in the program. The
>>> previous query did not fail when it became the last one.
>>>
>>> Thanks in advance for your help.
>>>
>>> Carol
>
>
> --
> Jason Gerfen
> Systems Administration/Web application development
> jason.gerfen@scl.utah.edu
>
> Marriott Library
> Lab Systems PC
> 295 South 1500 East
> Salt Lake City, Utah 84112-0806
> Ext 5-9810
>
> "Tomorrow isn't promised so we live for today"
>
> --
> PHP Database Mailing List (http://www.php.net/)
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>


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