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<title>Tutorial: Changing Declarations to Use the %TYPE Attribute</title>
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<p><a id="BABEEIIC" name="BABEEIIC"></a><a id="TDDDG99960" name="TDDDG99960"></a></p>
<div class="sect2">
<h1>Tutorial: Changing Declarations to Use the %TYPE Attribute</h1>
<a name="BEGIN" id="BEGIN"></a>
<p><a id="sthref415" name="sthref415"></a>This tutorial shows how to use the SQL&nbsp;Developer tool Edit to change the declarations of the variables, constants, and formal parameters of the <code>EMP_EVAL</code>.<code>calculate_score</code> function (shown in <a href="tdddg_subprograms019.htm#CIHBGDBA">"Tutorial: Declaring Variables and Constants in a Subprogram"</a>) to declarations that use the <code>%TYPE</code> attribute.</p>
<a id="TDDDG225" name="TDDDG225"></a>
<p class="subhead2">To change the declarations in calculate_score to use %TYPE:</p>
<ol>
<li>
<p>On the Connections tab, expand the <code>hr_conn</code> information by clicking the plus sign (<span class="bold">+</span>) to the left of the <code>hr_conn</code> icon.</p>
<p>Under the <code>hr_conn</code> icon, a list of schema object types appears.</p>
</li>
<li>
<p>Expand <span class="bold">Packages</span>.</p>
<p>A list of packages appears.</p>
</li>
<li>
<p>Expand <span class="bold">EMP_EVAL</span>.</p>
<p>A list appears.</p>
</li>
<li>
<p>Right-click <span class="bold">EMP_EVAL Body</span>.</p>
<p>A list of choices appears.</p>
</li>
<li>
<p>Click <span class="bold">Edit</span>.</p>
<p>The <code>EMP_EVAL</code> Body pane appears, showing the code for the package body.</p>
</li>
<li>
<p>In the code for the function, make the changes shown in bold font:</p>
<pre xml:space="preserve" class="oac_no_warn">
  FUNCTION calculate_score ( evaluation_id IN <span class="bold">SCORES.EVALUATION_ID%TYPE</span>
                            , performance_id IN <span class="bold">SCORES.PERFORMANCE_ID%TYPE</span>)
                            RETURN NUMBER AS
  n_score       <span class="bold">SCORES.SCORE%TYPE</span>;
  n_weight      <span class="bold">PERFORMANCE_PARTS.WEIGHT%TYPE</span>;
  max_score     CONSTANT <span class="bold">SCORES.SCORE%TYPE</span> := 9;
  max_weight    CONSTANT <span class="bold">PERFORMANCE_PARTS.WEIGHT%TYPE</span> := 1;
</pre></li>
<li>
<p>Right-click <span class="bold">EMP_EVAL</span>.</p>
<p>A list of choices appears.</p>
</li>
<li>
<p>Click <span class="bold">Edit</span>.</p>
<p>The <code>EMP_EVAL</code> pane opens, showing the <code>CREATE</code> <code>PACKAGE</code> statement that created the package.</p>
</li>
<li>
<p>In the code for the function, make the changes shown in bold font:</p>
<pre xml:space="preserve" class="oac_no_warn">
FUNCTION calculate_score(evaluation_id IN <span class="bold">scores.evaluation_id%TYPE</span>
                        , performance_id IN <span class="bold">scores.performance_id%TYPE</span>)
</pre></li>
<li>
<p>Right-click <span class="bold">EMP_EVAL</span>.</p>
<p>A list of choices appears.</p>
</li>
<li>
<p>Click <span class="bold">Compile</span>.</p>
</li>
</ol>
<div class="helpinfonotealso">
<h2>Related Topics</h2>
<p><a href="javascript:open('http://www.oracle.com/pls/db112/lookup?id=LNPLS99970','newWindow').focus()"><span class="italic">Oracle Database PL/SQL Language Reference</span></a></p>
<p><a href="tdddg_subprograms018.htm#CIHBCBHC">Declaring and Assigning Values to Variables and Constants</a></p>
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