title: sql join issue problem
body: <p>I have 3 columns in a table say test with columns say col1,col2,col3, they are foreign keys of a sigle table say test_master...how to write query to get desc column from test_master for those col1,col2,col3 in test.</p>
  
  <p>example</p>
  
  <pre><code>test table
  col1 col2 col3
  100  101  102
  
  test_master table
  id   desc
  100  testdata1 
  101  testdata1 
  102  testdata1 
  103  testdata1 
  </code></pre>
  
  <p>help please...</p>