PHP - How Do I Change This Select Statement To $pdo->query

There are about 400 records in a database with a field zabp_package = T_SIMT.
They were uploaded in an order where specific category lists were uploaded together.  For example, first 100 dining, then 75 insurance, then 150 health, then 75 cars.  So from an auto increment standpoint they were inserted in that order.
I want to select at random 100 of these 400 and update two fields.  My update statement is:
update  `usersOld` SET  `m_org` = 'ZABP.org Corporate HQ' , `m_orgID` = 'PFL2a96bW' WHERE `zabp_package` = 'T_SIMT'
This works for all, I just need to limit a random selection to 100.
Any Help on this, thanks in advance.

Hello all,   Based on the suggestion of you wonderful folks here, I went away for a few days (to learn about PDO and Prepared Statements) in order to replace the MySQLi commands in my code. That's gone pretty well thus far...with me having learnt and successfully replaced most of my "bad" code with elegant, SQL-Injection-proof code (or so I hope).   The one-and-only problem I'm having (for now at least) is that I'm having trouble understanding how to execute an UPDATE query within the resultset of a SELECT query (using PDO and prepared statements, of course).   Let me explain (my scenario), and since a picture speaks a thousand words I've also inlcuded a screenshot to show you guys my setup:   In my table I have two columns (which are essentially flags i.e. Y/N), one for "items alreay purchased" and the other for "items to be purchased later". The first flag, if/when set ON (Y) will highlight row(s) in red...and the second flag will highlight row(s) in blue (when set ON).   I initially had four buttons, two each for setting the flags/columns to "Y", and another two to reverse the columns/flags to "N". That was when I had my delete functionality as a separate operation on a separate tab/list item, and that was fine.   Now that I've realized I can include both operations (update and delete) on just the one tab, I've also figured it would be better to pare down those four buttons (into just two), and set them up as a toggle feature i.e. if the value is currently "Y" then the button will set it to "N", and vice versa.   So, looking at my attached picture, if a person selects (using the checkboxes) the first four rows and clicks the first button (labeled "Toggle selected items as Purchased/Not Purchased") then the following must happen:   1. The purchased_flag for rows # 2 and 4 must be switched OFF (set to N)...so they will no longer be highlighted in red. 2. The purchased_flag for row # 3 must be switched ON (set to Y)...so that row will now be highlighted in red. 3. Nothing must be done to rows # 1 and 5 since: a) row 5 was not selected/checked to begin with, and b) row # 1 has its purchase_later_flag set ON (to Y), so it must be skipped over.   Looking at my code below, I'm guessing (and here's where I need the help) that there's something wrong in the code within the section that says "/*** loop through the results/collection of checked items ***/". I've probably made it more complex than it should be, and that's due to the fact that I have no idea what I'm doing (or rather, how I should be doing it), and this has driven me insane for the last 2 days...which prompted me to "throw in the towel" and seek the help of you very helpful and intellegent folks. BTW, I am a newbie at this, so if I could be provided the exact code, that would be most wonderful, and much highly appreciated.   Thanks to you folks, I'm feeling real good (with a great sense of achievement) after having come here and got the great advice to learn PDO and prepared statements.   Just this one nasty little hurdle is stopping me from getting to "end-of-job" on my very first WebApp. BTW, sorry about the long post...this is the best/only way I could clearly explaing my situation.   Cheers guys!

case "update-delete":
	if(isset($_POST['highlight-purchased'])) 
		{
			// ****** Setup customized query to obtain only items that are checked ******
			$sql = "SELECT * FROM shoplist WHERE";
					for($i=0; $i < count($_POST['checkboxes']); $i++)
						{
							$sql=$sql . " idnumber=" . $_POST['checkboxes'][$i] . " or";
						}
					$sql= rtrim($sql, "or");
											
			$statement = $conn->prepare($sql);
			$statement->execute();
																						
			// *** fetch results for all checked items (1st query) *** //
			$result = $statement->fetchAll();

			$statement->closeCursor();
											
			// Setup query that will change the purchased flag to "N", if it's currently set to "Y"
			$sqlSetToN = "UPDATE shoplist SET purchased = 'N' WHERE purchased = 'Y'";
											
			// Setup query that will change the purchased flag to "Y", if it's currently set to "N", "", or NULL
			$sqlSetToY = "UPDATE shoplist SET purchased = 'Y' WHERE purchased = 'N' OR purchased = '' OR purchased IS NULL";

			$statementSetToN = $conn->prepare($sqlSetToN);
			$statementSetToY = $conn->prepare($sqlSetToY);
											
			/*** loop through the results/collection of checked items ***/
			foreach($result as $row)
				{
					if ($row["purchased"] != "Y")
						{
							// *** fetch one row at a time pertaining to the 2nd query *** //
							$resultSetToY = $statementSetToY->fetch();
															
							foreach($resultSetToY as $row)
								{															
									$statementSetToY->execute();																
								}
						}
					else
						{
							// *** fetch one row at a time pertaining to the 2nd query *** //
							$resultSetToN = $statementSetToN->fetch();
															
							foreach($resultSetToN as $row)
								{															
									$statementSetToN->execute();																
								}
						}
				}
				break;
		}

 CRUD Queston.png   20.68KB   0 downloads    

I have two tables...one is scheduled_umps and one is games.  Both tables have a column 'game_id'. 

I need to select how many games a person is scheduled for in a given time frame.

Here's what I have for the select...and it's not working (You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE scheduled_umps.ump_id = '34' AND games.game_id = scheduled_umps.game_id AN' at line 1)

Code: [Select]
<?php
$today_is_this_date = date('Y-m-d');
$four_months_ago = date('Y-m-d', strtotime('-4 months', strtotime($today_is_this_date)));
$four_months_from_now = date('Y-m-d', strtotime('+4 months', strtotime($today_is_this_date)));

/// How many games have you worked? 
//$query = "SELECT COUNT(ump_id) FROM scheduled_umps WHERE `ump_id` = '$_SESSION[ump_id]'";   ///this one selects how many games you've worked NO MATTER WHAT THE DATE

$query = "SELECT scheduled_umps.game_id, games.game_id, COUNT(scheduled_umps.ump_id) WHERE scheduled_umps.ump_id = '$_SESSION[ump_id]' AND games.game_id = scheduled_umps.game_id AND games.game_id BETWEEN $four_months_ago AND $four_months_from_now";

$result = mysql_query($query) or die(mysql_error());
while($row = mysql_fetch_array($result)){
echo "You have been scheduled on <b>". $row['COUNT(ump_id)'] ."</b> dates for the $_SESSION[association_name].";
}
?>
[\code]

Any ideas where I'm going wrong?  Thanks for the help...I HATE multi-table selects!

Hey guys, I'm trying to get this working... No errors right now, but I'm not returning any results :/ been messing with it for days.

Code: [Select]
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post" />
<label for="search_by">Search By</label>
<select name="search_by">
    <option value"player">Player</option>
    <option value"city">City</option>
    <option value"alliance">Alliance</option>
    <option value"browse">Browse</option>
    </select>
    <input type="text" name"search">
    <input type="submit" value="search" name="search">
 <?php
  $search_by = $_POST['search_by'];
$search = $_POST['search'];

  echo "<table><tr><td>Player</td><td>city</td><td>alliance</td><td>x</td><td>y</td><td>other</td><td>porters</td><td>conscripts</td><td>Spies</td><td>HBD</td><td>Minos</td><td>LBM</td><td>SSD</td><td>BD</td><td>AT</td><td>Giants</td><td>Mirrors</td><td>Fangs</td><td>ogres</td><td>banshee</td></tr>" ; 

$dbc = mysqli_connect('xx', 'xx', 'xx', 'xx') or die ('Error connecting to MySQL server');

$sql = "SELECT * FROM players WHERE ('$search_by') LIKE ('$search') ";
//problem is here^^?? 
$result = mysqli_query($dbc,$sql)
  or die("Error: " .mysqli_error($dbc));
Not sure, any help would be greatly appreciated.

$sql=mysql_query("SELECT * FROM `buds` WHERE `level`<='$user_level' UNION SELECT * FROM `buds`, `unlocked_buds` WHERE buds.`id` = unlocked_buds.`bud_id` ORDER BY buds.`id` ASC") or die("A MySQL error has occurred.<br />Your Query: " . $sql . "<br /> Error: (" . mysql_errno() . ") " . mysql_error());



I have been trying to learn about UNION select statements. I ran the query above and got this response:

Quote

Error: (1222) The used SELECT statements have a different number of columns



I think I know what the problem is, but not sure how to fix it.

There is two columns, one is "buds" which holds the flowers seeds info. The seconds is "unlocked_buds" which just links the "id" from buds to "user_id" to the user table.

Both buds and unlocked_buds are both 8 columns.

What do I need to learn?