mirror of
https://github.com/postgres/postgres.git
synced 2025-12-21 05:21:08 +03:00
Updated user's guide to match new psql's output format
Fixed bug in createdb/alternative location
This commit is contained in:
Peter Eisentraut
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/abort.sgml,v 1.5 2000/01/29 16:58:27 petere Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/abort.sgml,v 1.6 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -63,7 +63,6 @@ ROLLBACK
|
||||
<varlistentry>
|
||||
<term><computeroutput>
|
||||
NOTICE: ROLLBACK: no transaction in progress
|
||||
ROLLBACK
|
||||
</computeroutput></term>
|
||||
<listitem>
|
||||
<para>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_database.sgml,v 1.11 1999/12/12 05:15:09 momjian Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_database.sgml,v 1.12 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -245,13 +245,15 @@ comment from Olly; response from Thomas...
|
||||
<computeroutput>Creating Postgres database system directory /home/olly/private_db/base</computeroutput>
|
||||
|
||||
<prompt>$</prompt> <userinput>psql olly</userinput>
|
||||
<computeroutput>Welcome to psql, the PostgreSQL interactive terminal.
|
||||
(Please type \copyright to see the distribution terms of PostgreSQL.)
|
||||
<computeroutput>
|
||||
Welcome to psql, the PostgreSQL interactive terminal.
|
||||
|
||||
Type \h for help with SQL commands,
|
||||
\? for help on internal slash commands,
|
||||
\q to quit,
|
||||
\g or terminate with semicolon to execute query.
|
||||
Type: \copyright for distribution terms
|
||||
\h for help with SQL commands
|
||||
\? for help on internal slash commands
|
||||
\g or terminate with semicolon to execute query
|
||||
\q to quit
|
||||
|
||||
<prompt>olly=></prompt></computeroutput> <userinput>CREATE DATABASE elsewhere WITH LOCATION = '/home/olly/private_db';</userinput>
|
||||
<computeroutput>CREATE DATABASE</computeroutput>
|
||||
</programlisting>
|
||||
@@ -272,7 +274,7 @@ Type \h for help with SQL commands,
|
||||
</title>
|
||||
<para>
|
||||
There is no <command>CREATE DATABASE</command> statement in SQL92.
|
||||
The equivalent command in standard SQL is <command>CREATE SCHEMA</command>.
|
||||
Databases are equivalent to catalogs whose creation is implementation-defined.
|
||||
</para>
|
||||
</refsect2>
|
||||
</refsect1>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.11 1999/10/02 21:27:49 tgl Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_function.sgml,v 1.12 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -242,18 +242,18 @@ CREATE
|
||||
<para>
|
||||
To create a simple SQL function:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
CREATE FUNCTION one() RETURNS int4
|
||||
AS 'SELECT 1 AS RESULT'
|
||||
LANGUAGE 'sql';
|
||||
SELECT one() AS answer;
|
||||
|
||||
<computeroutput>
|
||||
answer
|
||||
------
|
||||
1
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
<computeroutput>
|
||||
answer
|
||||
--------
|
||||
1
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_language.sgml,v 1.8 1999/07/22 15:09:07 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_language.sgml,v 1.9 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -231,24 +231,24 @@ ERROR: PL handler function <replaceable class="parameter">funcname</replaceable
|
||||
<para>
|
||||
Refer to the table <filename>pg_language</filename>
|
||||
for further information:
|
||||
<programlisting>
|
||||
<computeroutput>
|
||||
Table = pg_language
|
||||
+--------------------------+--------------------------+-------+
|
||||
| Field | Type | Length|
|
||||
+--------------------------+--------------------------+-------+
|
||||
| lanname | name | 32 |
|
||||
| lancompiler | text | var |
|
||||
+--------------------------+--------------------------+-------+
|
||||
<programlisting>
|
||||
<computeroutput>
|
||||
Table "pg_language"
|
||||
Attribute | Type | Modifier
|
||||
---------------+---------+----------
|
||||
lanname | name |
|
||||
lanispl | boolean |
|
||||
lanpltrusted | boolean |
|
||||
lanplcallfoid | oid |
|
||||
lancompiler | text |
|
||||
|
||||
lanname |lancompiler
|
||||
--------+--------------
|
||||
internal|n/a
|
||||
lisp |/usr/ucb/liszt
|
||||
C |/bin/cc
|
||||
sql |postgres
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
lanname | lanispl | lanpltrusted | lanplcallfoid | lancompiler
|
||||
----------+---------+--------------+---------------+-------------
|
||||
internal | f | f | 0 | n/a
|
||||
C | f | f | 0 | /bin/cc
|
||||
sql | f | f | 0 | postgres
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_view.sgml,v 1.7 1999/07/22 15:09:08 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/create_view.sgml,v 1.8 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -160,10 +160,11 @@ CREATE VIEW kinds AS
|
||||
|
||||
SELECT * FROM kinds;
|
||||
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+-------------------------+---+----------+----------+------
|
||||
UA502|Bananas |105|1971-07-13|Comedy | 01:22
|
||||
C_701|There's a Girl in my Soup|107|1970-06-11|Comedy | 01:36
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+---------------------------+-----+------------+--------+-------
|
||||
UA502 | Bananas | 105 | 1971-07-13 | Comedy | 01:22
|
||||
C_701 | There's a Girl in my Soup | 107 | 1970-06-11 | Comedy | 01:36
|
||||
(2 rows)
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/delete.sgml,v 1.9 1999/10/04 04:37:46 momjian Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/delete.sgml,v 1.10 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -131,33 +131,33 @@ DELETE <replaceable class="parameter">count</replaceable>
|
||||
</title>
|
||||
<para>
|
||||
Remove all films but musicals:
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
DELETE FROM films WHERE kind <> 'Musical';
|
||||
SELECT * FROM films;
|
||||
|
||||
<computeroutput>
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+-------------------------+---+----------+----------+------
|
||||
UA501|West Side Story |105|1961-01-03|Musical | 02:32
|
||||
TC901|The King and I |109|1956-08-11|Musical | 02:13
|
||||
WD101|Bed Knobs and Broomsticks|111| |Musical | 01:57
|
||||
<computeroutput>
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+---------------------------+-----+------------+---------+-------
|
||||
UA501 | West Side Story | 105 | 1961-01-03 | Musical | 02:32
|
||||
TC901 | The King and I | 109 | 1956-08-11 | Musical | 02:13
|
||||
WD101 | Bed Knobs and Broomsticks | 111 | | Musical | 01:57
|
||||
(3 rows)
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
Clear the table <literal>films</literal>:
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
DELETE FROM films;
|
||||
SELECT * FROM films;
|
||||
|
||||
<computeroutput>
|
||||
code|title|did|date_prod|kind|len
|
||||
----+-----+---+---------+----+---
|
||||
<computeroutput>
|
||||
code | title | did | date_prod | kind | len
|
||||
------+-------+-----+-----------+------+-----
|
||||
(0 rows)
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</computeroutput>
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/fetch.sgml,v 1.7 1999/07/22 15:09:12 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/fetch.sgml,v 1.8 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -299,42 +299,39 @@ FETCH RELATIVE 0 FROM <replaceable class="PARAMETER">cursor</replaceable>
|
||||
<para>
|
||||
The following examples traverses a table using a cursor.
|
||||
|
||||
<programlisting>
|
||||
--set up and use a cursor:
|
||||
--
|
||||
BEGIN WORK;
|
||||
DECLARE liahona CURSOR
|
||||
FOR SELECT * FROM films;
|
||||
<programlisting>
|
||||
-- set up and use a cursor:
|
||||
|
||||
--Fetch first 5 rows in the cursor liahona:
|
||||
--
|
||||
FETCH FORWARD 5 IN liahona;
|
||||
BEGIN WORK;
|
||||
DECLARE liahona CURSOR FOR SELECT * FROM films;
|
||||
|
||||
<computeroutput>
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+-----------------------+---+----------+----------+------
|
||||
BL101|The Third Man |101|1949-12-23|Drama | 01:44
|
||||
BL102|The African Queen |101|1951-08-11|Romantic | 01:43
|
||||
JL201|Une Femme est une Femme|102|1961-03-12|Romantic | 01:25
|
||||
P_301|Vertigo |103|1958-11-14|Action | 02:08
|
||||
P_302|Becket |103|1964-02-03|Drama | 02:28
|
||||
</computeroutput>
|
||||
-- Fetch first 5 rows in the cursor liahona:
|
||||
FETCH FORWARD 5 IN liahona;
|
||||
|
||||
--Fetch previous row:
|
||||
--
|
||||
FETCH BACKWARD 1 IN liahona;
|
||||
<computeroutput>
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+-------------------------+-----+------------+----------+-------
|
||||
BL101 | The Third Man | 101 | 1949-12-23 | Drama | 01:44
|
||||
BL102 | The African Queen | 101 | 1951-08-11 | Romantic | 01:43
|
||||
JL201 | Une Femme est une Femme | 102 | 1961-03-12 | Romantic | 01:25
|
||||
P_301 | Vertigo | 103 | 1958-11-14 | Action | 02:08
|
||||
P_302 | Becket | 103 | 1964-02-03 | Drama | 02:28
|
||||
</computeroutput>
|
||||
|
||||
<computeroutput>
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+-----------------------+---+----------+----------+------
|
||||
P_301|Vertigo |103|1958-11-14|Action | 02:08
|
||||
</computeroutput>
|
||||
-- Fetch previous row:
|
||||
FETCH BACKWARD 1 IN liahona;
|
||||
|
||||
-- close the cursor and commit work:
|
||||
--
|
||||
CLOSE liahona;
|
||||
COMMIT WORK;
|
||||
</programlisting>
|
||||
<computeroutput>
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+---------+-----+------------+--------+-------
|
||||
P_301 | Vertigo | 103 | 1958-11-14 | Action | 02:08
|
||||
</computeroutput>
|
||||
|
||||
-- close the cursor and commit work:
|
||||
|
||||
CLOSE liahona;
|
||||
COMMIT WORK;
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/initlocation.sgml,v 1.5 2000/01/18 00:03:34 petere Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/Attic/initlocation.sgml,v 1.6 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -96,7 +96,7 @@ initlocation <replaceable class="parameter">directory</replaceable>
|
||||
<programlisting>
|
||||
$ export PGDATA2=/opt/postgres/data
|
||||
$ initlocation PGDATA2
|
||||
$ createdb 'testdb' -D 'PGDATA2/testdb'
|
||||
$ createdb 'testdb' -D 'PGDATA2'
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
@@ -104,7 +104,7 @@ $ createdb 'testdb' -D 'PGDATA2/testdb'
|
||||
Alternatively, if you allow absolute paths you could write:
|
||||
<programlisting>
|
||||
$ initlocation /opt/postgres/data
|
||||
$ createdb 'testdb' -D '/opt/postgres/data/testdb'
|
||||
$ createdb testdb -D '/opt/postgres/data/testdb'
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/listen.sgml,v 1.7 1999/07/22 15:09:12 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/listen.sgml,v 1.8 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -166,12 +166,12 @@ NOTICE Async_Listen: We are already listening on <replaceable class="PARAMETER">
|
||||
</title>
|
||||
<para>
|
||||
Configure and execute a listen/notify sequence from <application>psql</application>:
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
LISTEN virtual;
|
||||
NOTIFY virtual;
|
||||
|
||||
ASYNC NOTIFY of 'virtual' from backend pid '11239' received
|
||||
</programlisting>
|
||||
Asynchronous NOTIFY 'virtual' from backend with pid '8448' received.
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/move.sgml,v 1.6 1999/07/22 15:09:13 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/move.sgml,v 1.7 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -86,28 +86,28 @@ MOVE [ <replaceable class="PARAMETER">selector</replaceable> ] [ <replaceable cl
|
||||
<para>
|
||||
Set up and use a cursor:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
BEGIN WORK;
|
||||
DECLARE liahona CURSOR FOR SELECT * FROM films;
|
||||
--Skip first 5 rows:
|
||||
-- Skip first 5 rows:
|
||||
MOVE FORWARD 5 IN liahona;
|
||||
<computeroutput>
|
||||
MOVE
|
||||
</computeroutput>
|
||||
--Fetch 6th row in the cursor liahona:
|
||||
-- Fetch 6th row in the cursor liahona:
|
||||
FETCH 1 IN liahona;
|
||||
<computeroutput>
|
||||
FETCH
|
||||
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+------+---+----------+----------+------
|
||||
P_303|48 Hrs|103|1982-10-22|Action | 01:37
|
||||
(1 row)
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+--------+-----+-----------+--------+-------
|
||||
P_303 | 48 Hrs | 103 | 1982-10-22| Action | 01:37
|
||||
(1 row)
|
||||
</computeroutput>
|
||||
-- close the cursor liahona and commit work:
|
||||
CLOSE liahona;
|
||||
COMMIT WORK;
|
||||
</programlisting>
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/notify.sgml,v 1.10 1999/07/22 15:09:13 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/notify.sgml,v 1.11 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -208,11 +208,11 @@ NOTIFY
|
||||
Configure and execute a listen/notify sequence from
|
||||
<application>psql</application>:
|
||||
|
||||
<programlisting>
|
||||
LISTEN virtual;
|
||||
NOTIFY virtual;
|
||||
ASYNC NOTIFY of 'virtual' from backend pid '11239' received
|
||||
</programlisting>
|
||||
<programlisting>
|
||||
=> LISTEN virtual;
|
||||
=> NOTIFY virtual;
|
||||
Asynchronous NOTIFY 'virtual' from backend with pid '8448' received.
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.26 2000/03/15 23:31:19 tgl Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/select.sgml,v 1.27 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -609,43 +609,45 @@ SELECT f.title, f.did, d.name, f.date_prod, f.kind
|
||||
FROM distributors d, films f
|
||||
WHERE f.did = d.did
|
||||
|
||||
title |did|name | date_prod|kind
|
||||
-------------------------+---+----------------+----------+----------
|
||||
The Third Man |101|British Lion |1949-12-23|Drama
|
||||
The African Queen |101|British Lion |1951-08-11|Romantic
|
||||
Une Femme est une Femme |102|Jean Luc Godard |1961-03-12|Romantic
|
||||
Vertigo |103|Paramount |1958-11-14|Action
|
||||
Becket |103|Paramount |1964-02-03|Drama
|
||||
48 Hrs |103|Paramount |1982-10-22|Action
|
||||
War and Peace |104|Mosfilm |1967-02-12|Drama
|
||||
West Side Story |105|United Artists |1961-01-03|Musical
|
||||
Bananas |105|United Artists |1971-07-13|Comedy
|
||||
Yojimbo |106|Toho |1961-06-16|Drama
|
||||
There's a Girl in my Soup|107|Columbia |1970-06-11|Comedy
|
||||
Taxi Driver |107|Columbia |1975-05-15|Action
|
||||
Absence of Malice |107|Columbia |1981-11-15|Action
|
||||
Storia di una donna |108|Westward |1970-08-15|Romantic
|
||||
The King and I |109|20th Century Fox|1956-08-11|Musical
|
||||
Das Boot |110|Bavaria Atelier |1981-11-11|Drama
|
||||
Bed Knobs and Broomsticks|111|Walt Disney | |Musical
|
||||
</programlisting>
|
||||
title | did | name | date_prod | kind
|
||||
---------------------------+-----+------------------+------------+----------
|
||||
The Third Man | 101 | British Lion | 1949-12-23 | Drama
|
||||
The African Queen | 101 | British Lion | 1951-08-11 | Romantic
|
||||
Une Femme est une Femme | 102 | Jean Luc Godard | 1961-03-12 | Romantic
|
||||
Vertigo | 103 | Paramount | 1958-11-14 | Action
|
||||
Becket | 103 | Paramount | 1964-02-03 | Drama
|
||||
48 Hrs | 103 | Paramount | 1982-10-22 | Action
|
||||
War and Peace | 104 | Mosfilm | 1967-02-12 | Drama
|
||||
West Side Story | 105 | United Artists | 1961-01-03 | Musical
|
||||
Bananas | 105 | United Artists | 1971-07-13 | Comedy
|
||||
Yojimbo | 106 | Toho | 1961-06-16 | Drama
|
||||
There's a Girl in my Soup | 107 | Columbia | 1970-06-11 | Comedy
|
||||
Taxi Driver | 107 | Columbia | 1975-05-15 | Action
|
||||
Absence of Malice | 107 | Columbia | 1981-11-15 | Action
|
||||
Storia di una donna | 108 | Westward | 1970-08-15 | Romantic
|
||||
The King and I | 109 | 20th Century Fox | 1956-08-11 | Musical
|
||||
Das Boot | 110 | Bavaria Atelier | 1981-11-11 | Drama
|
||||
Bed Knobs and Broomsticks | 111 | Walt Disney | | Musical
|
||||
(17 rows)
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
To sum the column <literal>len</literal> of all films and group
|
||||
the results by <literal>kind</literal>:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
SELECT kind, SUM(len) AS total FROM films GROUP BY kind;
|
||||
|
||||
kind |total
|
||||
----------+------
|
||||
Action | 07:34
|
||||
Comedy | 02:58
|
||||
Drama | 14:28
|
||||
Musical | 06:42
|
||||
Romantic | 04:38
|
||||
</programlisting>
|
||||
kind | total
|
||||
----------+-------
|
||||
Action | 07:34
|
||||
Comedy | 02:58
|
||||
Drama | 14:28
|
||||
Musical | 06:42
|
||||
Romantic | 04:38
|
||||
(5 rows)
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
@@ -653,17 +655,18 @@ SELECT kind, SUM(len) AS total FROM films GROUP BY kind;
|
||||
the results by <literal>kind</literal> and show those group totals
|
||||
that are less than 5 hours:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
SELECT kind, SUM(len) AS total
|
||||
FROM films
|
||||
GROUP BY kind
|
||||
HAVING SUM(len) < INTERVAL '5 hour';
|
||||
|
||||
kind |total
|
||||
----------+------
|
||||
Comedy | 02:58
|
||||
Romantic | 04:38
|
||||
</programlisting>
|
||||
kind | total
|
||||
----------+-------
|
||||
Comedy | 02:58
|
||||
Romantic | 04:38
|
||||
(2 rows)
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
@@ -675,22 +678,23 @@ SELECT kind, SUM(len) AS total
|
||||
SELECT * FROM distributors ORDER BY name;
|
||||
SELECT * FROM distributors ORDER BY 2;
|
||||
|
||||
did|name
|
||||
---+----------------
|
||||
109|20th Century Fox
|
||||
110|Bavaria Atelier
|
||||
101|British Lion
|
||||
107|Columbia
|
||||
102|Jean Luc Godard
|
||||
113|Luso films
|
||||
104|Mosfilm
|
||||
103|Paramount
|
||||
106|Toho
|
||||
105|United Artists
|
||||
111|Walt Disney
|
||||
112|Warner Bros.
|
||||
108|Westward
|
||||
</programlisting>
|
||||
did | name
|
||||
-----+------------------
|
||||
109 | 20th Century Fox
|
||||
110 | Bavaria Atelier
|
||||
101 | British Lion
|
||||
107 | Columbia
|
||||
102 | Jean Luc Godard
|
||||
113 | Luso films
|
||||
104 | Mosfilm
|
||||
103 | Paramount
|
||||
106 | Toho
|
||||
105 | United Artists
|
||||
111 | Walt Disney
|
||||
112 | Warner Bros.
|
||||
108 | Westward
|
||||
(13 rows)
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
@@ -700,14 +704,14 @@ SELECT * FROM distributors ORDER BY 2;
|
||||
with letter W in each table. Only distinct rows are wanted, so the
|
||||
ALL keyword is omitted:
|
||||
|
||||
<programlisting>
|
||||
-- distributors: actors:
|
||||
-- did|name id|name
|
||||
-- ---+------------ --+--------------
|
||||
-- 108|Westward 1|Woody Allen
|
||||
-- 111|Walt Disney 2|Warren Beatty
|
||||
-- 112|Warner Bros. 3|Walter Matthau
|
||||
-- ... ...
|
||||
<programlisting>
|
||||
distributors: actors:
|
||||
did | name id | name
|
||||
-----+-------------- ----+----------------
|
||||
108 | Westward 1 | Woody Allen
|
||||
111 | Walt Disney 2 | Warren Beatty
|
||||
112 | Warner Bros. 3 | Walter Matthau
|
||||
... ...
|
||||
|
||||
SELECT distributors.name
|
||||
FROM distributors
|
||||
@@ -717,15 +721,15 @@ SELECT actors.name
|
||||
FROM actors
|
||||
WHERE actors.name LIKE 'W%'
|
||||
|
||||
name
|
||||
--------------
|
||||
Walt Disney
|
||||
Walter Matthau
|
||||
Warner Bros.
|
||||
Warren Beatty
|
||||
Westward
|
||||
Woody Allen
|
||||
</programlisting>
|
||||
name
|
||||
----------------
|
||||
Walt Disney
|
||||
Walter Matthau
|
||||
Warner Bros.
|
||||
Warren Beatty
|
||||
Westward
|
||||
Woody Allen
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
@@ -749,9 +753,9 @@ was retained from the original PostQuel query language:
|
||||
<programlisting>
|
||||
SELECT distributors.* WHERE name = 'Westwood';
|
||||
|
||||
did|name
|
||||
---+----------------
|
||||
108|Westward
|
||||
did | name
|
||||
-----+----------
|
||||
108 | Westward
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect2>
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.32 2000/03/17 05:29:03 tgl Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/set.sgml,v 1.33 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -905,25 +905,25 @@ SET GEQO = DEFAULT;
|
||||
|
||||
Set the timezone for Berkeley, California:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
SET TIME ZONE 'PST8PDT';
|
||||
SELECT CURRENT_TIMESTAMP AS today;
|
||||
|
||||
today
|
||||
----------------------
|
||||
1998-03-31 07:41:21-08
|
||||
</programlisting>
|
||||
today
|
||||
------------------------
|
||||
1998-03-31 07:41:21-08
|
||||
</programlisting>
|
||||
|
||||
Set the timezone for Italy:
|
||||
Set the timezone for Italy:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
SET TIME ZONE 'Europe/Rome';
|
||||
SELECT CURRENT_TIMESTAMP AS today;
|
||||
|
||||
today
|
||||
----------------------
|
||||
1998-03-31 17:41:31+02
|
||||
</programlisting>
|
||||
today
|
||||
------------------------
|
||||
1998-03-31 17:41:31+02
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/unlisten.sgml,v 1.8 1999/07/22 15:09:15 thomas Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/unlisten.sgml,v 1.9 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -142,26 +142,26 @@ UNLISTEN { <replaceable class="PARAMETER">notifyname</replaceable> | * }
|
||||
<para>
|
||||
To subscribe to an existing registration:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
postgres=> LISTEN virtual;
|
||||
LISTEN
|
||||
postgres=> NOTIFY virtual;
|
||||
NOTIFY
|
||||
ASYNC NOTIFY of 'virtual' from backend pid '12317' received
|
||||
</programlisting>
|
||||
Asynchronous NOTIFY 'virtual' from backend with pid '8448' received
|
||||
</programlisting>
|
||||
</para>
|
||||
|
||||
<para>
|
||||
Once UNLISTEN has been executed, further NOTIFY commands will be
|
||||
ignored:
|
||||
|
||||
<programlisting>
|
||||
<programlisting>
|
||||
postgres=> UNLISTEN virtual;
|
||||
UNLISTEN
|
||||
postgres=> NOTIFY virtual;
|
||||
NOTIFY
|
||||
-- notice no NOTIFY event is received
|
||||
</programlisting>
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
@@ -1,5 +1,5 @@
|
||||
<!--
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/update.sgml,v 1.7 2000/01/29 16:58:27 petere Exp $
|
||||
$Header: /cvsroot/pgsql/doc/src/sgml/ref/update.sgml,v 1.8 2000/03/26 18:32:27 petere Exp $
|
||||
Postgres documentation
|
||||
-->
|
||||
|
||||
@@ -150,20 +150,18 @@ UPDATE <replaceable class="parameter">#</replaceable>
|
||||
<para>
|
||||
Change word "Drama" with "Dramatic" on column kind:
|
||||
|
||||
<programlisting>
|
||||
UPDATE films
|
||||
SET kind = 'Dramatic'
|
||||
WHERE kind = 'Drama';
|
||||
<programlisting>
|
||||
UPDATE films SET kind = 'Dramatic' WHERE kind = 'Drama';
|
||||
SELECT * FROM films WHERE kind = 'Dramatic' OR kind = 'Drama';
|
||||
|
||||
code |title |did| date_prod|kind |len
|
||||
-----+-------------+---+----------+----------+------
|
||||
BL101|The Third Man|101|1949-12-23|Dramatic | 01:44
|
||||
P_302|Becket |103|1964-02-03|Dramatic | 02:28
|
||||
M_401|War and Peace|104|1967-02-12|Dramatic | 05:57
|
||||
T_601|Yojimbo |106|1961-06-16|Dramatic | 01:50
|
||||
DA101|Das Boot |110|1981-11-11|Dramatic | 02:29
|
||||
</programlisting>
|
||||
code | title | did | date_prod | kind | len
|
||||
-------+---------------+-----+------------+----------+-------
|
||||
BL101 | The Third Man | 101 | 1949-12-23 | Dramatic | 01:44
|
||||
P_302 | Becket | 103 | 1964-02-03 | Dramatic | 02:28
|
||||
M_401 | War and Peace | 104 | 1967-02-12 | Dramatic | 05:57
|
||||
T_601 | Yojimbo | 106 | 1961-06-16 | Dramatic | 01:50
|
||||
DA101 | Das Boot | 110 | 1981-11-11 | Dramatic | 02:29
|
||||
</programlisting>
|
||||
</para>
|
||||
</refsect1>
|
||||
|
||||
|
||||
Reference in New Issue
Block a user