Provided by:
manpages-zh_1.5.2-1_all 
NAME
FETCH -
SYNOPSIS
FETCH [ direction { FROM | IN } ] cursorname
where direction can be empty or one of:
NEXT
PRIOR
FIRST
LAST
ABSOLUTE count
RELATIVE count
count
ALL
FORWARD
FORWARD count
FORWARD ALL
BACKWARD
BACKWARD count
BACKWARD ALL
DESCRIPTION
FETCH
FETCH FETCH FETCH ALL FETCH BACKWARD ALL
NEXT, PRIOR, FIRST, LAST, ABSOLUTE, RELATIVE
FORWARD BACKWARD count
RELATIVE 0FORWARD 0 BACKWARD 0
PARAMETERS
direction
direction
NEXT
direction
PRIOR
FIRST
ABSOLUTE 1
LAST
ABSOLUTE -1
ABSOLUTE count
count count < 0 abs(count) count ABSOLUTE 0
RELATIVE count
count count < 0 abs(count) RELATIVE 0
count
count FORWARD count
ALL
FORWARD ALL
FORWARD
NEXT
FORWARD count
count FORWARD 0
FORWARD ALL
BACKWARD
PRIOR
BACKWARD count
count BACKWARD 0
BACKWARD ALL
count count FORWARD BACKWARD count FORWARD BACKWARD
cursorname
OUTPUTS
FETCH
FETCH count
count psql psql
NOTES
FETCH NEXT FETCH FETCH FORWARD SCROLL PostgreSQL SCROLL NO
SCROLL
ABSOLUTE FETCH ABSOLUTE 0
PostgreSQL
DECLARE [declare(7)] MOVE [move(7)]
EXAMPLES
BEGIN WORK;
--
DECLARE liahona SCROLL CURSOR FOR SELECT * FROM films;
-- 5 liahona
FETCH FORWARD 5 FROM liahona;
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
--
FETCH PRIOR FROM liahona;
code | title | did | date_prod | kind | len
-------+---------+-----+------------+--------+-------
P_301 | Vertigo | 103 | 1958-11-14 | Action | 02:08
--
CLOSE liahona;
COMMIT WORK;
COMPATIBILITY
SQL FETCH FETCH SELECT FETCH SQL
FORWARD BACKWARD FETCH FETCH count FETCH ALL FORWARD
PostgreSQL
SQL FROM IN
Postgresql <laser@pgsqldb.org>