title: Existing DB column in Base 64 to AES 128
body: <p>I wrote a java program and fetched columns in DB which is in base 64  encoded format and also i wrote AES 128 for New inputs </p>
  
  <p>new data will be encrypt with AES 128.</p>
  
  <p><strong>How to change existing old BASE 64 encoding colums in DB to AES 128 in simple way</strong> </p>
  
  <p>There are multiple tables in DB which has BASE 64 encoded columns </p>