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  <div class="titlepage">
   <div>
    <div>
     <h1 class="title">
      <a name="language-structure">
      </a>
      Chapter 11 Language Structure
     </h1>
    </div>
   </div>
  </div>
  <div class="toc">
   <p>
    <b>
     Table of Contents
    </b>
   </p>
   <dl class="toc">
    <dt>
     <span class="section">
      <a href="literals.html">
       11.1 Literal Values
      </a>
     </span>
    </dt>
    <dd>
     <dl>
      <dt>
       <span class="section">
        <a href="string-literals.html">
         11.1.1 String Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="number-literals.html">
         11.1.2 Numeric Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="date-and-time-literals.html">
         11.1.3 Date and Time Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="hexadecimal-literals.html">
         11.1.4 Hexadecimal Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="bit-value-literals.html">
         11.1.5 Bit-Value Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="boolean-literals.html">
         11.1.6 Boolean Literals
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="null-values.html">
         11.1.7 NULL Values
        </a>
       </span>
      </dt>
     </dl>
    </dd>
    <dt>
     <span class="section">
      <a href="identifiers.html">
       11.2 Schema Object Names
      </a>
     </span>
    </dt>
    <dd>
     <dl>
      <dt>
       <span class="section">
        <a href="identifier-length.html">
         11.2.1 Identifier Length Limits
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="identifier-qualifiers.html">
         11.2.2 Identifier Qualifiers
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="identifier-case-sensitivity.html">
         11.2.3 Identifier Case Sensitivity
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="identifier-mapping.html">
         11.2.4 Mapping of Identifiers to File Names
        </a>
       </span>
      </dt>
      <dt>
       <span class="section">
        <a href="function-resolution.html">
         11.2.5 Function Name Parsing and Resolution
        </a>
       </span>
      </dt>
     </dl>
    </dd>
    <dt>
     <span class="section">
      <a href="keywords.html">
       11.3 Keywords and Reserved Words
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="user-variables.html">
       11.4 User-Defined Variables
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="expressions.html">
       11.5 Expressions
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="query-attributes.html">
       11.6 Query Attributes
      </a>
     </span>
    </dt>
    <dt>
     <span class="section">
      <a href="comments.html">
       11.7 Comments
      </a>
     </span>
    </dt>
   </dl>
  </div>
  <p>
   This chapter discusses the rules for writing the following elements
    of
   <a class="link" href="glossary.html#glos_sql" title="SQL">
    SQL
   </a>
   statements when using MySQL:
  </p>
  <div class="itemizedlist">
   <ul class="itemizedlist" style="list-style-type: disc; ">
    <li class="listitem">
     <p>
      Literal values such as strings and numbers
     </p>
    </li>
    <li class="listitem">
     <p>
      Identifiers such as database, table, and column names
     </p>
    </li>
    <li class="listitem">
     <p>
      Keywords and reserved words
     </p>
    </li>
    <li class="listitem">
     <p>
      User-defined and system variables
     </p>
    </li>
    <li class="listitem">
     <p>
      Expressions
     </p>
    </li>
    <li class="listitem">
     <p>
      Query attributes
     </p>
    </li>
    <li class="listitem">
     <p>
      Comments
     </p>
    </li>
   </ul>
  </div>
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