Sql exception from java

Question

Hi,
When running the below query from sqlyog it works OK but when running from java I got exception.
What can cause this difference ?
The query :
create temporary table TempTable1 SELECT salaries.salary AS `salary`,salaries.emp_no AS `emp_no`,salaries.from_date AS `from_date`,MAX(salaries.salary) AS `func` FROM `salaries` WHERE salaries.to_date = '9999-01-01'
The exception:
com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Column 'salary' cannot be null
Thanks

Answer 1

Below is the code.
When run from sqlyog is works OK.
Thanks
The code :
package client;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;
public class test {
     * @param args
     * @throws ClassNotFoundException
     * @throws IllegalAccessException
     * @throws InstantiationException
     * @throws SQLException
     public static void main(String[] args) throws InstantiationException,
               IllegalAccessException, ClassNotFoundException, SQLException {
          String username = "root";
          String password = "";
          Class.forName("com.mysql.jdbc.Driver").newInstance();
          java.sql.Connection connection = DriverManager.getConnection(
                    "jdbc:mysql://localhost:3306/employees-thin", username,
                    password);
          Statement statement = connection.createStatement();
          statement
                    .execute("create temporary table TempTable1 SELECT salaries.salary AS `salary`,salaries.emp_no AS `emp_no`,salaries.from_date AS `from_date`,MAX(salaries.salary) AS `func` FROM `salaries` WHERE salaries.to_date = '9999-01-01'");
Exception in thread "main" com.mysql.jdbc.exceptions.MySQLIntegrityConstraintViolationException: Column 'salary' cannot be null
     at com.mysql.jdbc.SQLError.createSQLException(SQLError.java:931)