Dear god, I saw the word join in his explanation and didn't even read much after that. I thought he meant join as in join. Even so, I bet he's still doing something else wrong, I can loop across 50 queries in a blink of an eye. Maybe he's disconnecting / reconnecting on every access, or worse, just connecting over and over. I've seen some crazy code in PHP when folks are just beginning. I think I wrote a bit of it, but that was back when kids got suspended for saying "I'm using PHP." (<- true story, a kid had a run in with a teacher / principle, and was nearly suspended for saying that.) On Fri, 23 May 2003, Lonnie VanZandt wrote: > The entire report should/could be a single SQL query with multi-table > joins and order by specifications - but I believe Mukta is doing > individual table queries and looping over result sets in the PHP code. > Seeing actual code will help... > > -----Original Message----- > From: pgsql-php-owner@xxxxxxxxxxxxxx > [mailto:pgsql-php-owner@xxxxxxxxxxxxxx] On Behalf Of scott.marlowe > Sent: Friday, May 23, 2003 10:04 AM > To: Mukta Telang > Cc: pgsql-php@xxxxxxxxxxxxxx > Subject: Re: [PHP] faster output from php and postgres > > > It's probably just a slow query. > > Could you print out your query in PHP to the web browser, then cut and > paste it into the psql monitor to get an explain anaylze output? > > i.e. > psql dbname > #> explain analyze select .... rest of query goes here; > > And give us the output of that? Thanks. > > On Fri, 23 May 2003, Mukta Telang wrote: > > > Hi, > > I am dealing with a database with many-to-many relation and have a php > > > script that joins these tables and displays the output. But the > > problem is that after entering some 50 records the output is very > > slow! I can count till 50 before the script produces the output! > > The complete description of the problem is written below.. > > Thanks in advance, > > Mukta > > > > > > > > > > description in detail: > > > > > > database part: > > > > Three tables: paper,author and author_paper > > > > "A paper has many authors and an author has many papers." > > In this way there is many to many relation. > > > > The attributes of paper are: paper_id (primary key),title,journal,year > > > etc > > > > The attributes of author are: author_id(primary key) and name > > > > The attributes of author_paper are: author_id ,paper_id and level ( > > author with level=1 is the main author of the paper ) > > > > > > > > php part: > > > > For an author: > > 1. get author_id from author table > > 2. select all paper_ids from author_paper table > > 3. For each of the above selected paper_ids: > > a. print all the attributes of paper > > b. select all authors of the paper and print their names in > > the order of their "level" > > > > ---------------------------(end of > > broadcast)--------------------------- > > TIP 1: subscribe and unsubscribe commands go to > majordomo@xxxxxxxxxxxxxx > > > > > ---------------------------(end of broadcast)--------------------------- > TIP 2: you can get off all lists at once with the unregister command > (send "unregister YourEmailAddressHere" to majordomo@xxxxxxxxxxxxxx) > > > > ---------------------------(end of broadcast)--------------------------- > TIP 4: Don't 'kill -9' the postmaster >
