Demo PreparedStatement Set Null for int value column : PreparedStatement « Database SQL JDBC « Java

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Java » Database SQL JDBC » PreparedStatementScreenshots 
Demo PreparedStatement Set Null for int value column
 
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;

public class DemoPreparedStatementSetNull {
  public static Connection getConnection() throws Exception {
    String driver = "org.gjt.mm.mysql.Driver";
    String url = "jdbc:mysql://localhost/databaseName";
    String username = "root";
    String password = "root";
    Class.forName(driver);
    Connection conn = DriverManager.getConnection(url, username, password);
    return conn;
  }

  public static void main(String[] argsthrows Exception {
    String id = "0001";
    Connection conn = null;
    PreparedStatement pstmt = null;
    try {
      conn = getConnection();
      String query = "insert into nullable_table(id,string_column, int_column) values(?, ?, ?)";

      // create PrepareStatement object
      pstmt = conn.prepareStatement(query);
      pstmt.setString(1, id);
      pstmt.setNull(2, java.sql.Types.VARCHAR);
      pstmt.setNull(3, java.sql.Types.INTEGER);

      // execute query, and return number of rows created
      int rowCount = pstmt.executeUpdate();
      System.out.println("rowCount=" + rowCount);
    finally {
      pstmt.close();
      conn.close();
    }
  }
}
           
         
  
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