Salve a tutti e scusate l'OT,
Sapete dirmi come si altera una tabella in
un database postgres???
Ho la necessita' di allargare o restringere una
colonna, ho provato
Alter table modify ;
ma non acetta modify!!!
Ciao,
prova con RENAME . Quello che metto di seguito l'ho trovato in:
http://jamesthornton.com/postgres/7.2/postgres/sql-altertable.html
ALTER TABLE
Name
ALTER TABLE -- change the definition of a table
Synopsis
ALTER TABLE [ ONLY ] table [ * ]
ADD [ COLUMN ] column type [ column_constraint [ ... ] ]
ALTER TABLE [ ONLY ] table [ * ]
ALTER [ COLUMN ] column { SET DEFAULT value | DROP DEFAULT }
ALTER TABLE [ ONLY ] table [ * ]
ALTER [ COLUMN ] column SET STATISTICS integer
ALTER TABLE [ ONLY ] table [ * ]
RENAME [ COLUMN ] column TO newcolumn
ALTER TABLE table
RENAME TO new_table
ALTER TABLE table
ADD table_constraint_definition
ALTER TABLE [ ONLY ] table DROP CONSTRAINT constraint { RESTRICT |
CASCADE }
ALTER TABLE table
OWNER TO new_owner
Inputs
table
The name of an existing table to alter.
column
Name of a new or existing column.
type
Type of the new column.
newcolumn
New name for an existing column.
new_table
New name for the table.
table_constraint_definition
New table constraint for the table
new_owner
The user name of the new owner of the table.
Ciao Andrea
