Error-com.microsoft.sqlserver.jdbc.SQLServerException：关键字“ BY”附近的语法不正确

Question

private void UptadeSupplierActionPerformed(java.awt.event.ActionEvent evt) 
{                                               
    try
    {
        Class.forName(driver);  
        Connection con = DriverManager.getConnection(url, user, pass);
        Statement st = con.createStatement();
        ResultSet rec =st.executeQuery("SELECT SupName, SupSurName" +
           "FROM Suppliers" +
           "ORDER BY SupName");

        while(rec.next())
        {
            System.out.println(rec.getString("SupName") + "," + rec.getString("SupSurName") + ".");
        }
        st.close();
    } 
    catch(Exception e)
    {
        System.out.println("Error-" + e.toString());
    }
}                          

Answer 1

您可以这样连接字符串：

"SELECT SupName, SupSurName" + "FROM SUPPLIERS"

这将导致：

SELECT SupName, SupSurNameFROM Suppiers

请注意，您缺少“ SupSurName”和“ FROM”之间的空格。 您可以在字符串之间添加一个“”（空格），也可以在每个字符串的末尾添加一个空格。