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PreparedStatement() 13 Years Ago by ceyesuma …; i < schoolofdbTables.length; i++) { boolean bCreatedTables = false; PreparedStatement ps = null; try { ps = (PreparedStatement) conn.prepareStatement( ModelUtils.getResource(schoolofdbTables[i])); ps.executeQuery… PreparedStatement help 13 Years Ago by mcosta …m trying to Select data from a database using a PreparedStatement and it isn't working for me. No errors…= null; try { String sqlQuery = "select * from audiotracks "; PreparedStatement ps = con.prepareStatement(sqlQuery); srs = ps.executeQuery(); System.out.println… Re: PreparedStatement help 13 Years Ago by mcosta I removed the call to close the PreparedStatement but still fail to get any data from the database. … PreparedStatement - parameters from user combined with constants 13 Years Ago by liran …web user - so I want it to be in a PreparedStatement. But x,y,... (Suppose there are many variables like…combine the two ways, something like: PreparedStatement preparedStatement = ... preparedStatement.setString(1,userValue) preparedStatement.setString(2,passwordValue) execute(query,preparedStatement,new Object[]('valuex','valuey'...)) ? If… Re: PreparedStatement - parameters from user combined with constants 13 Years Ago by liran … user = ? AND password = ? AND x=? AND y=? ..." PreparedStatement preparedStatement = ... preparedStatement.setString(1,userValue) preparedStatement.setString(2,passwordValue) execute(query,preparedStatement,new Object[]('valuex','valuey'...)) ? Re: PreparedStatement - parameters from user combined with constants 13 Years Ago by liran So it's pretty much like new Object[]{...} ? There is no significant performance different if I put many variables in the PreparedStatement ? PreparedStatement problem 13 Years Ago by rushhour2 … { private DBCon dbc; private Connection con; private Statement stmt; private PreparedStatement ps = null; public DataManager() { dbc = new DBCon(); con = dbc.getConnection… PreparedStatement to insert user input to MySQL. 10 Years Ago by SoulofchaOs … stmt = conn.createStatement(); String getsize = request.getParameter("Size"); PreparedStatement pstmt; pstmt = conn.prepareStatement("INSERT INTO test_db (size) VALUES… Re: PreparedStatement() 13 Years Ago by jwenting check the name of the property against the name you're calling it as. Re: PreparedStatement() 13 Years Ago by ceyesuma I copied the wrong String as an example. This is actually the first table to be created in the db. [code] #derby create table strCreateAdminTable=DROP TABLE IF EXISTS admin \ CREATE TABLE admin \ ( \ admin_uid CHAR(11),\ admin_password CHAR(11),\ admin_lname CHAR(20),\ admin_mname CHAR(20),\ admin_fname CHAR(20),\ admin_gender CHAR(1… Re: PreparedStatement() 13 Years Ago by jwenting it may not be able to find the properties file. Make sure it's placed correctly in the root of the classpath (or deeper, depending on exactly how you call it, the location of a properties file for loading a ResourceBundle is determined like that for a classfile). Re: PreparedStatement() 13 Years Ago by ceyesuma > it may not be able to find the properties file. Make sure it's placed correctly in the root of the classpath (or deeper, depending on exactly how you call it, the location of a properties file for loading a ResourceBundle is determined like that for a classfile). I am not sure exactly how to do that but I get the resources as so... … Re: PreparedStatement() 13 Years Ago by jwenting like I said, it can't find the properties file. Place it where it can be found and it should be picked up. If you don't know how to do that, learn a bit about classpaths etc. as there's nothing anyone here will be able to do for you except repeating what I've already said over and over again. Re: PreparedStatement() 13 Years Ago by ceyesuma [QUOTE=jwenting;1204924]like I said, it can't find the properties file. Place it where it can be found and it should be picked up. If you don't know how to do that, learn a bit about classpaths etc. as there's nothing anyone here will be able to do for you except repeating what I've already said over and over again.[/QUOTE] ok thanks for your … Re: PreparedStatement help 13 Years Ago by ~s.o.s~ You are closing the Statement object which in turn closes the ResultSet which was obtained from it. Read [URL="http://download.oracle.com/javase/6/docs/api/java/sql/Statement.html#close%28%29"]this[/URL]. Close the Statement only if you are done with the ResultSet and the Statement object, close the Connection only if you are done with … Re: PreparedStatement help 13 Years Ago by mcosta I got it figured out. I was processing the data incorrectly. Since I hadn't set the fetchSize, it was returning 0 and never going into that loop. Thanks for the help ~s.o.s~ Re: PreparedStatement and subquery 13 Years Ago by Ignatius88 How do I execute multiple queries in PreparedStatement? [CODE] pstmt = conn.prepareStatement("INSERT IGNORE INTO user (user_id) … Re: PreparedStatement setString(), no char? 11 Years Ago by crownedzero Sorry; in a PreparedStatement pstmt.setChar() or setString(). I was hoping to be able to pass either an int OR and wildcard _ or %.; I ended up using an overloaded method and determined the required method prior to calling it. Re: PreparedStatement setString(), no char? 11 Years Ago by Taywin … I see. If you want to add that functionality which PreparedStatement doesn't have, you could extend the class and add… initalize a var for a preparedStatement 13 Years Ago by ceyesuma … DerbyDAOFactory(); conn = ddf.getConnection(); if (conn != null) { ps = null; ps = (PreparedStatement) conn.prepareStatement( ModelUtils.getXMLResource("SelectStudent")); } System.out.println… Re: initalize a var for a preparedStatement 13 Years Ago by ~s.o.s~ Use one of the setXXX methods of the PreparedStatement to set the value of your place holder.[code] ps = (PreparedStatement) conn.prepareStatement( ModelUtils.getXMLResource("SelectUserGroup")); ps.setString(1, user.getUserId()); ResultSet rs = ps.executeQuery();[/code] Re: initalize a var for a preparedStatement 13 Years Ago by ceyesuma …a clue yet. [code] if (conn != null) { PreparedStatement ps = null; conn = (Connection) ddf.getConnection(); String …null; studentUser.setStuUid(loginInfo.getUser()); ps = (PreparedStatement) conn.prepareStatement( ModelUtils.getXMLResource("SelectStudent")); } [/… Cannot Update Database using PreparedStatement 12 Years Ago by taher_sk2000 …con=DriverManager.getConnection("JDBC:ODBC:HotelT"); PreparedStatement st=null; if(room.getSelectedItem()=="Classic …quot; "; // exe=st.executeUpdate(b); PreparedStatement pst=con.prepareStatement("insert into Check_In values … Re: initalize a var for a preparedStatement 13 Years Ago by ceyesuma I didn't see your example. I'm still getting nullpointer so I'm still working with it 1. ps = (PreparedStatement) conn.prepareStatement( 2. ModelUtils.getXMLResource("SelectUserGroup")); 3. ps.setString(1, user.getUserId()); 4. ResultSet rs = ps.executeQuery(); Re: initalize a var for a preparedStatement 13 Years Ago by ceyesuma … ConnectStudentDAO"); DerbyDAOFactory ddf = new DerbyDAOFactory(); conn = ddf.getConnection(); ps = (PreparedStatement) conn.prepareStatement( ModelUtils.getXMLResource("SelectUserGroup")); ps.setString(1… Garbage collection and ResultSet, PreparedStatement, Connection 14 Years Ago by Xessa Hello. I have a PreparedStatement/CallableStatement, a ResultSet and a Connection... Now after execution finishes, … Why Use a Statement Instead of PreparedStatement 13 Years Ago by DoubleShot I have read all sorts of positive reasons for using the PreparedStatement type in Java when working with SQL. Does anyone know of any reason why you'd ever choose the Statement type instead? Re: Why Use a Statement Instead of PreparedStatement 13 Years Ago by DoubleShot [QUOTE=masijade;1398320]When you have a query with no parameters that is not meant to be run multiple times in a row.[/QUOTE] But why not use the PreparedStatement anyway? It is supposed to be more efficient. Is there any use for a Statement type at all? MySQL User-Defined Variables in PreparedStatement 12 Years Ago by velr … two "statements" ending with ";"in one PreparedStatement. When i run the sql in phpMyAdmin it works but… Re: PreparedStatement - parameters from user combined with constants 13 Years Ago by ~s.o.s~ If you need to pass them for every call to prepared statement, then they are not constant and should be part of prepare statement. If they really are constants, you can embed those values in the query itself. Or you can combine both the approaches: [code]var pStmt = "select * from tbl where u=? and p=? and x=? and y=?"; pStmt.setString(1,…