prepared-statement

I am use nodejs npm package sql I currently have an array of product skus like so.. var skus = ['product1', 'product2', 'product3']; My sql store in a file as follows... SELECT * FROM stock AS s WHERE s.sku IN (@skus) Then I also have my prepared statement code as follows.. var connection = new sql.Connection(config, function(err) { var ps = new sql.PreparedStatement(connection); //Add params if(params != undefined){ for(var key in params){ ps.input(key, sql.VarChar(200)); } } ps.prepare(sqlstatement, function(err) { ps.execute(params, function(err, data) { callback(null, data); ps.unprepare

How do I create prepared statements for insert and select queries in MySQL? I am using the MySQL2 gem, and my connection object looks like this: con = Mysql2::Client.new(:host => "#{ENV['DB_HOST']}", :port => '3306', :username => "#{ENV['DB_UNAME']}", :password => "#{ENV['DB_PWD']}", :database => 'dbname') Unfortunately, mysql2 gem does not have prepared statement support yet. The contributors are planning to add such a feature in a near future, as we can see by this Pull Request discussion: https://github.com/brianmario/mysql2/pull/289 If you must have prepared statements in your application,

I want to update the string date into MySQL database using prepared statement. I have tried a lot and always got error java.util.Date cannot parse into java.sql.Date or vise versa. I didn't import anything here. Please import according to your answer. public class Date1 { public static void main(String args[]) { String source="2008/4/5"; SimpleDateFormat format = new SimpleDateFormat("dd/MM/yyyy"); java.sql.Date d=(Date) format.parse(source); Class.forName("com.mysql.jdbc.Driver"); Connection con=(Connection) DriverManager.getConnection("jdbc:mysql://localhost:3306/employee", "root", "root");

Is it possible to store the result of a prepared table in mysql ? My use case is - : I am creating two variables based on certain conditions of the source table, then fetching the randomized rows, based on this criteria. Since I have 10 of such tables, should I be 1st joining them and then doing this randomization on the "overall" passing/filtering criteria (See also @total below, which is my main criteria, PER table) set @total=(select count(*) from tab_1 where predict_var ="4" or predict_var ="2" ) ; set @sample= ( select @total*(70/30)) ; PREPARE STMT FROM " SELECT * FROM tab_1 WHERE

I'm having an issue with a prepared statement in Python I can't solve so far. The Query, which should be execute is e.g.: SELECT md5 FROM software WHERE software_id IN (1, 2, 4) So I tried to execute a Query like this: software_id_string = "(2, 3, 4)" cursor.execute("SELECT md5 FROM software WHERE software_id IN %s", software_id_string) The Problem is that there are '' added to the string --> '(2, 3, 4)', so that the Query will be: SELECT md5 FROM software WHERE software_id IN ''(2, 3, 4)'' I've also tried to rebuild the Script like this: software_id_string = " 1 OR software_id = 2" cursor

I am currently writing a CRUD class in PHP using PDO. I like the security that prepared statements provide, but I have heard that they also prevent databases like mysql from using the queryCache. Is it better to use a prepared Select statement when you are only doing one select at a time? or would just $pdo->quote() suffice the security standpoint (or have any other advantages like caching?). All my update, delete and inserts are done using prepared statements already. I am just curious about the selects. MySQLPerformanceBlog.com did some benchmarks in an article about " Prepared Statements ."

How can I make an prepared statement of this one? Statement stmt = con.createStatement(); long lastid = getLastId(stmt); // create a SQL query String strQuery = "INSERT INTO studenten " + " (id, naam, adres, postcode, plaats, geboren) " + " VALUES (" + (lastid+1) + "," + "'" + contact.getNaam() + "'," + "'" + contact.getAdres() + "'," + "'" + contact.getPostcode() + "'," + "'" + contact.getPlaats() + "'," + "{d '" + contact.getGeboren() + "'}" + ") "; stmt.executeUpdate(strQuery); stmt.close(); con.close(); You need to substitute values with question marks ? as placeholders. String sql =

For clarification: I know that it's the right thing to create the PreparedStatement outside the loop. I've asked this question just out of curiosity. Let's assume that I'm creating a PreparedStatement inside a loop with always the same SQL query. final String sql = "INSERT INTO ..."; while (condition) { ... PreparedStatement statement = connection.prepareStatement(sql); // Fill values of the prepared statement // Execute statement ... } Is this useless since the PreparedStatement object is always created anew? Or does the underlying database recognise that it's always the same SQL query with