░▒▓████████████████████████████████▓▒░ ░▒▓█ ▓▒░ ░▒▓█ ~ S W A M P ~ ▓▒░ ░▒▓█ ▓▒░ ░▒▓████████████████████████████████▓▒░
pplmvsvm
LOCATION:
/usr/share/doc/postgresql-16/examples
☗ ROOT
↻ REFRESH
✎ CARVE FLESH
EDITING: autoinc.example
DROP SEQUENCE next_id; DROP TABLE ids; CREATE SEQUENCE next_id START -2 MINVALUE -2; CREATE TABLE ids ( id int4, idesc text ); CREATE TRIGGER ids_nextid BEFORE INSERT OR UPDATE ON ids FOR EACH ROW EXECUTE PROCEDURE autoinc (id, next_id); INSERT INTO ids VALUES (0, 'first (-2 ?)'); INSERT INTO ids VALUES (null, 'second (-1 ?)'); INSERT INTO ids(idesc) VALUES ('third (1 ?!)'); SELECT * FROM ids; UPDATE ids SET id = null, idesc = 'first: -2 --> 2' WHERE idesc = 'first (-2 ?)'; UPDATE ids SET id = 0, idesc = 'second: -1 --> 3' WHERE id = -1; UPDATE ids SET id = 4, idesc = 'third: 1 --> 4' WHERE id = 1; SELECT * FROM ids; SELECT 'Wasn''t it 4 ?' as nextval, nextval ('next_id') as value; insert into ids (idesc) select textcat (idesc, '. Copy.') from ids; SELECT * FROM ids;
CANCEL
Name
Type
Size
Modified
Actions
↩ ..
DIR
—
—
📄 autoinc.example
EXAMPLE
798 B
2026-05-15 12:22
EDIT
📄 insert_username.example
EXAMPLE
560 B
2026-05-15 12:22
EDIT
📄 moddatetime.example
EXAMPLE
493 B
2026-05-15 12:22
EDIT
📄 refint.example
EXAMPLE
2.1 KB
2026-05-15 12:22
EDIT