title: LINQ query returning NULL
body: <p>I have the following Linq query that is trying to compare the column value in a table with the specified input, but it returns NULL always, even though when I use the same query(generated) directly in SQL developer, it generates the desired result.. </p>
  
  <pre><code>  public IQueryable&lt;Entityname&gt; Getvalue(string input)
      {
  
          var recordsretrieved = from res in this._Model.Entityname
                                  where res.columnA== input
                                 select res;
  
          return recordsretrieved;
      }
  </code></pre>
  
  <p>Am i missing something here?</p>
  
  <p>Query generated in DbMonitor: </p>
  
  <pre><code>SELECT 
  "Extent1".columnA
  FROM TableName "Extent1"
  WHERE ("Extent1".columnA = :p__linq__0) AND ROWNUM &lt;= 1
  </code></pre>
  
  <p>The above query shows "no rows affected".. but when i execute in SQL Developer the same query: </p>
  
  <pre><code>SELECT 
  "Extent1".columnA
  FROM TableName "Extent1"
  WHERE ("Extent1".columnA = input) AND ROWNUM &lt;= 1
  </code></pre>
  
  <p>It works..</p>