prepared-statement

Hey guys, question if this is possible or not, maybe I'm not doing something right. I'm trying to use a prepared statement where the column is prepared i.e. SELECT ? FROM users Now this normally works if I put SELECT id FROM users But doing the first statement, the value is the column name. id = id 0 = 0 What am I doing wrong, or is this possible? Thanks Galen No you can't bind column names or table names. Here's more info Escaping column names in PDO statements A prepared statement can only replace value in the statement not field nor column name, this is because prepared statement are kind

I have the following sql prepared statement: SELECT * FROM video WHERE video_name LIKE ? Im using spring and jdbc. i have a method, where term is a searchterm, sjt is a SimpleJdbcTemplate, VideoMapper is a RowMapper and searchForTermQuery is the string from above ... return sjt.query(searchForTermQuery, new VideoMapper(), term); My table has 2 videos that match the term. However when I run the query none is found. I get an empty List. I tried playing with % around the question mark, but it only gave badGrammarExceptions. You need to put the % around the value itself, not around the placeholder

I have the following snippet of code in my WCF web service that builds a set of where conditions according to the formatting of the values of a provided dictionary. public static Dictionary<string, string>[] VehicleSearch(Dictionary<string, string> searchParams, int maxResults) { string condition = ""; foreach (string key in searchParams.Keys) { //Split out the conditional in case multiple options have been set (i.e. SUB;OLDS;TOY) string[] parameters = searchParams[key].Split(';'); if (parameters.Length == 1) { //If a single condition (no choice list) check for wildcards and use a LIKE if

Is it possible to export the query formatted by mysqli::prepare and ::bind_param ? Example: <?php $mysqli = new mysqli('host', 'user', 'pass', 'table'); if(mysqli_connect_errno()){ printf('Connect failed: %s\n', mysqli_connect_error()); exit; } $data=7290; if ($stmt = $mysqli->prepare('SELECT `id`,`info` FROM `propertys` WHERE id>?')){ $stmt->bind_param('i',$data); $stmt->execute(); $stmt->bind_result($id,$info); while($q=$stmt->fetch()){ echo $id,': ',$info,'<br>'; } $stmt->close(); } $mysqli->close(); ?> I would like to export the QUERY functions performed by mysql::prepare and bind_param so

Can't PDO bind a value to multiple occurrences of a param in a query with a single bindParam()? I'm surprised, I thought it was possible, but I didn't find any info on php's docs on this, neither on the web. Any clarification / alternative is welcome! Note : I'm using php 5.3.6 / 5.3.8 (dev/prod) Example : Consider this prepared statement : INSERT INTO table VALUES (:param1, 0), (:param1, 1); Now, if I bind values to my query: bindParam(":param1",$my_param1); I have a PDO error : SQLSTATE[HY093]: Invalid parameter number See PDO::prepare You cannot use a named parameter marker of the same name

I am trying to use a simple MySQL insert query with the parameters in array form. It keeps telling me the number of parameters are wrong. I have tried the following, all producing the same error: $stmt3 = $link->prepare('INSERT INTO messages VALUES(null, :room, :name, :message, :time, :color)'); $stmt3->execute(array(':room' => $Clean['room'],':name' => $Clean['name'],':message' => $Clean['message'],':time' => $time,':color:' => $Clean['color'])); and $stmt3 = $link->prepare('INSERT INTO messages VALUES(:null, :room, :name, :message, :time, :color)'); $stmt3->execute(array(':null' => null, '

I wanted to know if it is possible to prepare multiple statements for MySQLi multi_query? No. mysqli::multi_query takes a query string as its argument, not a prepared statement. mysql::prepare can only prepare a single statement: The query must consist of a single SQL statement. 来源： https://stackoverflow.com/questions/4881381/php-mysqli-multi-query-prepared-statement

I know that there is a way to list all prepared statements for the current session by selecting all rows from the pg_prepared_statements table, but is there a way to see all prepared statements for all active sessions ? I think I'm looking for something like an administrator function, but I can't find anything like it in the docs. Nope. AFAIK prepared statements are local to a backend; other backends just don't know they exist. You'd need to modify the server to add additional inter-process communication to allow one backend to ask the others about prepared statements. The backends initally