title: Convert a row into two row in sql server
body: <p>I have an Attendance table with columns (Check_In, Check_Out). I want to split each row and insert into another column. How can I accomplish that?</p>
  
  <p>For example:</p>
  
  <pre><code>Check_In, Check_Out 
  23:10   , 08:10
  </code></pre>
  
  <p>Want to convert it to one column table </p>
  
  <pre><code>Entry_Time
  23:10
  08:10
  </code></pre>