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-<!-- $PostgreSQL: pgsql/doc/src/sgml/syntax.sgml,v 1.152 2010年08月12日 02:03:58 momjian Exp $ -->

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<chapter id="sql-syntax">

<title>SQL Syntax</title>

special character is adjacent to some other token type).

</para>

- <para>

- Additionally, <firstterm>comments</firstterm> can occur in SQL

- input. They are not tokens, they are effectively equivalent to

- whitespace.

- </para>

-

<para>

For example, the following is (syntactically) valid SQL input:

<programlisting>

commands can usefully be split across lines).

</para>

+ <para>

+ Additionally, <firstterm>comments</firstterm> can occur in SQL

+ input. They are not tokens, they are effectively equivalent to

+ whitespace.

+ </para>

+

<para>

The SQL syntax is not very consistent regarding what tokens

identify commands and which are operands or parameters. The first