73 lines
4.2 KiB
HTML
73 lines
4.2 KiB
HTML
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<meta name="DC.Title" content="SQL4015 - From-column &1.&2, to-column &3.&4, join operator &5, join predicate &6" />
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<title>SQL4015 - From-column &1.&2, to-column &3.&4, join
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operator &5, join predicate &6</title>
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</head>
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<body id="sql4015"><a name="sql4015"><!-- --></a>
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<!-- Java sync-link --><script language="Javascript" src="../rzahg/synch.js" type="text/javascript"></script>
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<h1 class="topictitle1">SQL4015 - From-column &1.&2, to-column &3.&4, join
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operator &5, join predicate &6</h1>
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<div>
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<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>
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</tr>
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</thead>
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<tbody><tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Message Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">From-column &1.&2, to-column &3.&4, join operator &5,
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join predicate &6</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Cause Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Identifies which join predicate was implemented at the current join
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position. The replacement text parameters are: <ul><li>&1: The join 'from table' number. The table number refers to the relative
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position of this table in the query.</li>
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<li>&2: The join 'from column' name. The column within the join from table
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which comprises the left half of the join column pair. If the column name
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is *MAP, the column is an expression (derived field).</li>
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<li>&3: The join 'to table' number. The table number refers to the relative
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position of this table in the query. </li>
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<li>&4. The join 'to column' name. The column within the join to column
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which comprises the right half of the join column pair. If the column name
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is *MAP, the column is an expression (derived field).</li>
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<li>&5. The join operator. Possible values are EQ (equal), NE (not equal),
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GT (greater than), LT (less than), GE (greater than or equal), LE (less than
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or equal), and CP (cross join or cartesian product).</li>
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<li>&6. The join predicate number. Identifies the join predicate within
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this set of join pairs.</li>
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</ul>
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</td>
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</tr>
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<tr valign="middle"><td valign="middle" width="26.02040816326531%" headers="d0e16 ">Recovery Text:</td>
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<td valign="middle" width="73.9795918367347%" headers="d0e16 ">Refer to <a href="perf24.htm#perf24">Join optimization</a> for more information
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about joins.</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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<div>
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<div class="familylinks">
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<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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</div>
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</div>
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