mirror of
https://github.com/postgres/postgres.git
synced 2025-12-19 17:02:53 +03:00
minor copy editing
This commit is contained in:
@@ -1,4 +1,4 @@
|
||||
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.5 2001/02/15 04:10:54 tgl Exp $ -->
|
||||
<!-- $Header: /cvsroot/pgsql/doc/src/sgml/queries.sgml,v 1.6 2001/03/24 23:03:26 petere Exp $ -->
|
||||
|
||||
<chapter id="queries">
|
||||
<title>Queries</title>
|
||||
@@ -146,7 +146,7 @@ FROM <replaceable>table_reference</replaceable> <optional>, <replaceable>table_r
|
||||
<listitem>
|
||||
|
||||
<synopsis>
|
||||
<replaceable>T1</replaceable> { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable> ON <replaceable>boolean expression</replaceable>
|
||||
<replaceable>T1</replaceable> { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable> ON <replaceable>boolean_expression</replaceable>
|
||||
<replaceable>T1</replaceable> { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable> USING ( <replaceable>join column list</replaceable> )
|
||||
<replaceable>T1</replaceable> NATURAL { <optional>INNER</optional> | { LEFT | RIGHT | FULL } <optional>OUTER</optional> } JOIN <replaceable>T2</replaceable>
|
||||
</synopsis>
|
||||
@@ -403,9 +403,9 @@ FROM (SELECT * FROM T1) DT1, T2, T3
|
||||
<para>
|
||||
The syntax of the WHERE clause is
|
||||
<synopsis>
|
||||
WHERE <replaceable>search condition</replaceable>
|
||||
WHERE <replaceable>search_condition</replaceable>
|
||||
</synopsis>
|
||||
where <replaceable>search condition</replaceable> is any value
|
||||
where <replaceable>search_condition</replaceable> is any value
|
||||
expression as defined in <xref linkend="sql-expressions"> that
|
||||
returns a value of type <type>boolean</type>.
|
||||
</para>
|
||||
@@ -579,10 +579,11 @@ SELECT pid AS "Products",
|
||||
<title>Select Lists</title>
|
||||
|
||||
<para>
|
||||
The table expression in the <command>SELECT</command> command
|
||||
As shown in the previous section,
|
||||
the table expression in the <command>SELECT</command> command
|
||||
constructs an intermediate virtual table by possibly combining
|
||||
tables, views, eliminating rows, grouping, etc. This table is
|
||||
finally passed on to processing by the select list. The select
|
||||
finally passed on to processing by the <firstterm>select list</firstterm>. The select
|
||||
list determines which <emphasis>columns</emphasis> of the
|
||||
intermediate table are actually output. The simplest kind of select list
|
||||
is <literal>*</literal> which emits all columns that the table
|
||||
|
||||
Reference in New Issue
Block a user