Re: Compare and inserting with php

On Tuesday 30 June 2009 15:42:01 Miller, Terion wrote: > Okay, what I am trying to do is this: > > I have a db full of inspections, daily I need to run a script that will > grab the posting of inspections, check them against the db to make sure > they aren't duplicates and then insert all the new entries..... Not sure if > my logic of going about it this way is right, or if I'm off track and need > to be doing something different please advise...so far this is how I am > writing it.....and it seems redundant ... Shouldn't there be a way to say > (in plain speak) if there are no records with the name== insert this one, > if there is one with the name then check intype if none ..insert... Etc > > > if (!empty($Go)) { > > $query = "SELECT * FROM restaurants WHERE name LIKE '$ucName'"; > > $result = mysql_query ($query); > > $row = mysql_fetch_object ($result); > > > If (mysql_num_rows($result) == 0) { > > $sql = "INSERT INTO restaurants (name, address, inDate, > inType, notes, > critical, cviolations, noncritical) VALUES ("; > > $sql .= " '$ucName', '$ucAddress', '$inDate', > '$inType', '$notes', > '$critical', '$cleanViolations', '$noncritical')"; > > $result = mysql_query($sql) or die(mysql_error()); > > > } else { > > $query = "SELECT * FROM restaurants WHERE inType LIKE '$inType' AND name > LIKE '$ucName' "; > > $result = mysql_query ($query); > > $row = mysql_fetch_object ($result); > > If (mysql_num_rows($result) == 0) { > > $sql = "INSERT INTO restaurants (name, address, inDate, > inType, notes, > critical, cviolations, noncritical) VALUES ("; > > $sql .= " '$ucName', '$ucAddress', '$inDate', > '$inType', > '$notes', '$critical', '$cleanViolations', > '$noncritical')"; > > $result = mysql_query($sql) or die(mysql_error()); > > > } else { > > $query = "SELECT * FROM restaurants WHERE inDate LIKE '$inDate' AND name > LIKE '$ucName' "; > > $result = mysql_query ($query); > > $row = mysql_fetch_object ($result); > > > If (mysql_num_rows($result) == 0) { > > $sql = "INSERT INTO restaurants (name, address, inDate, > inType, notes, > critical, cviolations, noncritical) VALUES ("; > > $sql .= " '$ucName', '$ucAddress', '$inDate', > '$inType', > '$notes', '$critical', '$cleanViolations', > '$noncritical')"; > > > $result = mysql_query($sql) or die(mysql_error()); > > > } > } It's a bad way of doing it, but could you not create a unique index on the particular key you want to be unique, and then just try the select anyway with the mysql_query() call preceeded with an @ to suppress warnings? Thanks, Ash http://www.ashleysheridan.co.uk