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<title>SQL4015 - From-column &amp;1.&amp;2, to-column &amp;3.&amp;4, join
operator &amp;5, join predicate &amp;6</title>
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<h1 class="topictitle1">SQL4015 - From-column &amp;1.&amp;2, to-column &amp;3.&amp;4, join
operator &amp;5, join predicate &amp;6</h1>
<div>
<div class="tablenoborder"><table cellpadding="4" cellspacing="0" summary="" frame="border" border="1" rules="all"><thead align="left"><tr><th colspan="2" align="center" valign="middle" id="d0e16">SQL4015</th>
</tr>
</thead>
<tbody><tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Message Text:</td>
<td valign="middle" width="73.9795918367347%" headers="d0e16 ">From-column &amp;1.&amp;2, to-column &amp;3.&amp;4, join operator &amp;5,
join predicate &amp;6</td>
</tr>
<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Cause Text:</td>
<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Identifies which join predicate was implemented at the current join
position. The replacement text parameters are: <ul><li>&amp;1: The join 'from table' number. The table number refers to the relative
position of this table in the query.</li>
<li>&amp;2: The join 'from column' name. The column within the join from table
which comprises the left half of the join column pair. If the column name
is *MAP, the column is an expression (derived field).</li>
<li>&amp;3: The join 'to table' number. The table number refers to the relative
position of this table in the query. </li>
<li>&amp;4. The join 'to column' name. The column within the join to column
which comprises the right half of the join column pair. If the column name
is *MAP, the column is an expression (derived field).</li>
<li>&amp;5. The join operator. Possible values are EQ (equal), NE (not equal),
GT (greater than), LT (less than), GE (greater than or equal), LE (less than
or equal), and CP (cross join or cartesian product).</li>
<li>&amp;6. The join predicate number. Identifies the join predicate within
this set of join pairs.</li>
</ul>
</td>
</tr>
<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Recovery Text:</td>
<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Refer to <a href="perf24.htm#perf24">Join optimization</a> for more information
about joins.</td>
</tr>
</tbody>
</table>
</div>
</div>
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<div class="familylinks">
<div class="parentlink"><strong>Parent topic:</strong> <a href="prtsqlinfmsg.htm" title="The following are the messages returned from PRTSQLINF.">PRTSQLINF message reference</a></div>
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