php - Syntax for ON DUPLICATE KEY UPDATE with positional placeholders -


this replace syntax

$sql = "replace 2_1_journal (number,recordday, recordmonth) values "; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i]; $insertdata[] = $_post['date_month'][$i]; } if (!empty($insertquery)) { $sql .= implode(', ', $insertquery); $stmt = $db->prepare($sql); $stmt->execute($insertdata); }

however read instead of replace better use on duplicate key update

trying change this

$sql = "insert 2_1_journal (number,recordday, recordmonth) values on duplicate key update (recordday, recordmonth) "; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?, ?, ?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i]; $insertdata[] = $_post['date_month'][$i]; $insertdata[] = $_post['date_day'][$i]; $insertdata[] = $_post['date_month'][$i]; } if (!empty($insertquery)) { $sql .= implode(', ', $insertquery); $stmt = $db->prepare($sql); $stmt->execute($insertdata); }

but not work (neither inserts nor updates)

what incorrect?

if downvote, please write in comments why (for me avoid write things cause downvote)

update

changed code this

$sql = "insert 2_1_journal (number, recordday) values on duplicate key update recordday"; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i]; }

get sqlstate[42000]: syntax error or access violation: 1064 have error in sql syntax; check manual corresponds mysql server version right syntax use near 'on duplicate key update recordday('21', ''), ('22', '')' @ line 1

changed this

$sql = "insert 2_1_journal (number, recordday) values on duplicate key update recordday=values(number)"; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i];

get sqlstate[42000]: syntax error or access violation: 1064 have error in sql syntax; check manual corresponds mysql server version right syntax use near 'on duplicate key update recordday=values(number)('21', ''), ('22', '')' @ line 1

changed code this

$sql = "insert 2_1_journal (number, recordday) values on duplicate key update recordmonth=?"; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i]; $insertdata[] = $_post['date_month'][$i];

get sqlstate[hy093]: invalid parameter number: number of bound variables not match number of tokens

can make conclusion last example valid sql syntax. why error? number, recordday, recordmonth=? , $insertquery[] = '(?, ?, ?)'; 3 variables , 3 tokens? or wrong?

if $insertquery[] = '(?, ?)'; same sqlstate[hy093]: invalid parameter number: number of bound variables not match number of tokens

please, help. stuck.... no idea

working code!!!

try { $sql = "insert 2_1_journal (number, recordday) values "; $insertquery = array(); $insertdata = array(); foreach ($_post['row_id'] $i => $row_id) { $insertquery[] = '(?, ?)'; $insertdata[] = $row_id; $insertdata[] = $_post['date_day'][$i]; } if (!empty($insertquery)) { $sql .= implode(', ', $insertquery) . 'on duplicate key update recordday = values(recordday);'; $stmt = $db->prepare($sql); $stmt->execute($insertdata); } } catch (pdoexception $e){ echo "database error: " .$e->getmessage() .'<br>'; } catch (exception $e) { echo "general error: ".$e->getmessage() .'<br>'; }

your comments, please. , see location of on duplicate key update!!!

whenever use code build sql statement, add line:

echo $sql;

just before executing statement. way can see executing.

you can cut & paste sql statement directly database, , see happens.

also -- prevent sql injection, add 

$row_id = mysql_real_escape_string($post['row_id']); $date_day = mysql_real_escape_string($_post['date_day']); $date_month = mysql_real_escape_string($_post['date_month']);

to beginning of code, , use $row_id instead of $post['row_id'] in rest of code. , $date_day instead of $_post['date_day'], , $date_month instead of $_post['date_month'], etc -- post , variables.

check this: http://xkcd.com/327/


Comments

Post a Comment

Popular posts from this blog

php - cannot display multiple markers in google maps v3 from traceroute result -

i'm newbie in php mysql , google maps v3. have problems in google maps v3. made traceroute web based , map traceroute's result in google maps v3 final project of college education. have try many tutorials didn't work. have tried tutorials in forum nothing worked. problem cannot display multiple markers got location data database. maybe because i'm newbie , not know how do. confuse looping show markers. here code <?php error_reporting(e_all ^ (e_notice)); ini_set('max_execution_time', 360); $enable_log_user = false; global $ip, $host_name, $host_ip; $host = @$_post['host']; $trace = @$_post['trace']; $self = $_server['php_self']; include("phpsqlajax_dbinfo.php"); $connection = mysql_connect ('127.0.0.1', $username, $password); if (!$connection) { die('not connected : ' . mysql_error());} $db_selected = mysql_select_db($database, $connection); if (!$db_selected) { die ('can\'t use db : ...
Read more

c# - DetailsView in ASP.Net - How to add another column on the side/add a control in each row? -

i have detailsview control on page used edit various fields of record, works in respect. i looking way add 1 column (and if works, why not more) right, absolutely read-only, show same fields of record comparison purposes. i aware there no obvious way such thing out of box detailsview . have looked other controls (transposed gridview , recommended formview , listview ), nothing satisfies. have special data binding setup using detailsview , can't out of without losing features. anyone on how "hack in" additional columns (for display only) on detailsview ? the solution have now, use second detailsview , visible set false in aspx. in code, make sure databind hidden detailsview hosts data third column first, initial detailsview named itemdetails . and in item created event, pass third column html rendering of hidden controls (in last code block) : protected void itemdetails_itemcreated(object sender, eventargs e) { if (dataite...
Read more

javascript - firefox memory leak -

i have following script (i use raphaeljs also) draws circle, waits 1 second, draws circle again, etc (you can copy paste - functional, need include raphael raphaeljs.com): <div id="holder"> </div> <script src="raphael.js" type="text/javascript"></script> <script> var paper = raphael(10, 50, 320, 200); var rad = math.pi / 180; var finangle = 0; function sector(cx, cy, r, startangle, endangle, params) { var x1 = cx + r * math.cos(-startangle * rad), x2 = cx + r * math.cos(-endangle * rad), y1 = cy + r * math.sin(-startangle * rad), y2 = cy + r * math.sin(-endangle * rad); return ["m", cx, cy, "l", x1, y1, "a", r, r, 0, +(endangle - startangle > 180), 0, x2, y2]; } var path = sector(100,100,50,0,180); var arc = paper.path(path); function draw() { path = sector(100,100,50,0,finangle); ...
Read more