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    <p>I expect you have auto commit turned off for the connection.</p> <p>As far as I can understand your problem, this small code example will demonstrate it.</p> <pre><code>package org.yi.happy.mysql; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; public class RepeatQuery { public static void main(String[] args) throws Exception { Class.forName("com.mysql.jdbc.Driver").newInstance(); setupDatabase(); System.out.println("opening database..."); Connection connection = openConnection(); connection.setAutoCommit(false); queryDatabase(connection); deleteRecords(); queryDatabase(connection); connection.close(); } private static Connection openConnection() throws SQLException { return DriverManager.getConnection("jdbc:mysql://localhost/test", null, null); } private static void setupDatabase() throws SQLException { Connection conn = openConnection(); System.out.println("doing insert on another connection..."); PreparedStatement stmt = conn .prepareStatement("insert into strings(id, value) values(?, ?)"); stmt.setInt(1, 1); stmt.setString(2, "test"); stmt.execute(); stmt.setInt(1, 2); stmt.setString(2, "data"); stmt.execute(); stmt.close(); conn.close(); } private static void deleteRecords() throws SQLException { Connection conn = openConnection(); System.out.println("doing delete on another connection..."); PreparedStatement stmt = conn.prepareStatement("delete from strings"); stmt.execute(); stmt.close(); conn.close(); } private static void queryDatabase(Connection connection) throws SQLException { System.out.println("doing query..."); PreparedStatement ps = connection .prepareStatement("select id, value from strings"); ResultSet dbResult = ps.executeQuery(); while (dbResult.next()) { int id = dbResult.getInt(1); String value = dbResult.getString(2); System.out.println(id + " &lt;=&gt; " + value); } } } </code></pre> <p>The output of the above is</p> <pre><code>doing insert on another connection... opening database... doing query... 2 &lt;=&gt; data 1 &lt;=&gt; test doing delete on another connection... doing query... 2 &lt;=&gt; data 1 &lt;=&gt; test </code></pre> <p>If I change</p> <pre><code> connection.setAutoCommit(false); </code></pre> <p>to read</p> <pre><code> connection.setAutoCommit(true); </code></pre> <p>the output becomes</p> <pre><code>doing insert on another connection... opening database... doing query... 2 &lt;=&gt; data 1 &lt;=&gt; test doing delete on another connection... doing query... </code></pre> <p>which is what you appear to expect.</p>
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    1. USMark Rotteveel
    1. USSarah Happy
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    1. COI did connection.setAutoCommit and that worked :) Thanks
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      1. USLucas Arrefelt
 

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