title: Select query where record count = 2 and column contains either two values
body: <p>Example 1</p>
  
  <pre><code>+--------------------------+
  | IDENT | CURRENT | SOURCE |
  +--------------------------+
  | 12345 | 12345   | A      |
  | 23456 | 12345   | B      |
  | 34567 | 12345   | C      |
  +--------------------------+
  </code></pre>
  
  <p>Example 2</p>
  
  <pre><code>+--------------------------+
  | IDENT | CURRENT | SOURCE |
  +--------------------------+
  | 12345 | 55555   | A      |
  | 23456 | 55555   | B      |
  +--------------------------+
  </code></pre>
  
  <p>Trying to write select query that will show all records that CURRENT count = 2 and SOURCE contains both A and B (NOT C).
  <br><br>Example A should not show up as there are 3 entries for the CURRENT as record is linked to SOURCE C.<br>
  Example B is what I'm looking the query to find, CURRENT has two records and is only linked to SOURCE 'A' and 'B'.</p>
  
  <p>Currently if I run something similar to "where SOURCE = A or SOURCE = B", results are records that just have SOURCE of A, OR A+C.
  NOTES: IDENT is always a unique value. CURRENT links multiple IDENTS from different SOURCE's.</p>