database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-11-07 19:06:32 +03:00
Code Activity

Random copy-editing.

Browse Source
This commit is contained in:
Peter Eisentraut
2003-11-04 09:55:39 +00:00
parent c119c554ed
commit 1d27de4cf4
21 changed files with 571 additions and 588 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
doc/src/sgml/queries.sgml
View File

@@ -1,4 +1,4 @@
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.25 2003/11/01 01:56:29 petere Exp $ -->
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.26 2003/11/04 09:55:38 petere Exp $ -->
<chapter id="queries">
<title>Queries</title>
@@ -105,7 +105,7 @@ SELECT random();
</para>
<sect2 id="queries-from">
<title>The FROM Clause</title>
<title>The <literal>FROM</literal> Clause</title>
<para>
The <literal>FROM</> clause derives a table from one or more other
@@ -670,7 +670,7 @@ SELECT *
</sect2>
<sect2 id="queries-where">
<title>The WHERE Clause</title>
<title>The <literal>WHERE</literal> Clause</title>
<indexterm zone="queries-where">
<primary>WHERE</primary>
@@ -716,7 +716,7 @@ FROM a NATURAL JOIN b WHERE b.val &gt; 5
</programlisting>
Which one of these you use is mainly a matter of style. The
<literal>JOIN</> syntax in the <literal>FROM</> clause is
probably not as portable to other SQL database products. For
probably not as portable to other SQL database management systems. For
outer joins there is no choice in any case: they must be done in
the <literal>FROM</> clause. An <literal>ON</>/<literal>USING</>
clause of an outer join is <emphasis>not</> equivalent to a
@@ -758,7 +758,7 @@ SELECT ... FROM fdt WHERE EXISTS (SELECT c1 FROM t2 WHERE c2 > fdt.c1)
<sect2 id="queries-group">
<title>The GROUP BY and HAVING Clauses</title>
<title>The <literal>GROUP BY</literal> and <literal>HAVING</literal> Clauses</title>
<indexterm zone="queries-group">
<primary>GROUP BY</primary>
@@ -1040,7 +1040,7 @@ SELECT a AS value, b + c AS sum FROM ...
</sect2>
<sect2 id="queries-distinct">
<title>DISTINCT</title>
<title><literal>DISTINCT</literal></title>
<indexterm zone="queries-distinct">
<primary>DISTINCT</primary>
@@ -1264,7 +1264,7 @@ SELECT a AS b FROM table1 ORDER BY a;
<sect1 id="queries-limit">
<title>LIMIT and OFFSET</title>
<title><literal>LIMIT</literal> and <literal>OFFSET</literal></title>
<indexterm zone="queries-limit">
<primary>LIMIT</primary>