title: How to iterate a string and add string to every position?
body: <p>I need something like this in TSQL</p>
  
  <pre><code>string myString = "123";
  for (int i = 0;  i &lt; myString.Length; i++)
  {
     myString.Insert("ABC", i);
  }
  Output "ABC1ABC2ABC3"
  </code></pre>