title: How can I see the specific value of the sql_mode?
body: <p>There are some <code>sql_mode</code> values in MySQL:</p>
  
  <p><code>ANSI</code>, </p>
  
  <p><code>IGNORE_SPACE</code>, </p>
  
  <p><code>STRICT_TRANS_TABLES</code>, etc</p>
  
  <p>How can I see the one particular value? The manual says:</p>
  
  <blockquote>
    <p>You can retrieve the current mode by issuing a SELECT @@sql_mode
    statement.</p>
  </blockquote>
  
  <p>But it just shows nothing, just one blank field in a table with <code>@@sql_mode</code> as a column name.</p>