SQL Get columns data in a single column
<p>I have a table in which Employee Punches are saved. For each date for each employee there are columns in the table as Punch1, Punch2 till Punch10.</p>

<p><a href="https://i.stack.imgur.com/tLmWz.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/tLmWz.png" alt="enter image description here"></a></p>

<p>I want all this Punch Columns data in a Single Column. e.g. If in a row i have dates stored in Punch1, Punch2, Punch3, Punc4....so on. I want all this data in a single Column. </p>

<p>How to achieve this?</p>