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@ -1,5 +1,5 @@
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<!--
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$Header: /cvsroot/pgsql/doc/src/sgml/query.sgml,v 1.24 2002/01/07 02:29:13 petere Exp $
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$Header: /cvsroot/pgsql/doc/src/sgml/query.sgml,v 1.25 2002/01/20 22:19:56 petere Exp $
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-->
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<chapter id="tutorial-sql">
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@ -21,7 +21,7 @@ $Header: /cvsroot/pgsql/doc/src/sgml/query.sgml,v 1.24 2002/01/07 02:29:13 peter
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<para>
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In the examples that follow, we assume that you have created a
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database named <quote>mydb</quote>, as described in the previous
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database named <literal>mydb</literal>, as described in the previous
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chapter, and have started <application>psql</application>.
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</para>
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@ -693,7 +693,7 @@ SELECT city, max(temp_lo)
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<para>
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It is important to understand the interaction between aggregates and
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SQL's <literal>WHERE</literal> and <literal>HAVING</literal> clauses.
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<acronym>SQL</acronym>'s <literal>WHERE</literal> and <literal>HAVING</literal> clauses.
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The fundamental difference between <literal>WHERE</literal> and
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<literal>HAVING</literal> is this: <literal>WHERE</literal> selects
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input rows before groups and aggregates are computed (thus, it controls
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