.\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $ ALTER DOMAIN - Online Linux Manual PageSection : 7
Updated : 2014-02-17
Source : SQL - Language Statements
Note : SQL Commands
NAMEALTER DOMAIN − change the definition of a domain
SYNOPSISALTER DOMAIN name
{ SET DEFAULT expression | DROP DEFAULT }
ALTER DOMAIN name
{ SET | DROP } NOT NULL
ALTER DOMAIN name
ADD domain_constraint
ALTER DOMAIN name
DROP CONSTRAINT constraint_name [ RESTRICT | CASCADE ]
ALTER DOMAIN name
OWNER TO new_owner
ALTER DOMAIN name
SET SCHEMA new_schema
DESCRIPTIONALTER DOMAIN changes the definition of an existing domain. There are several sub-forms: SET/DROP DEFAULT These forms set or remove the default value for a domain. Note that defaults only apply to subsequent INSERT commands; they do not affect rows already in a table using the domain. SET/DROP NOT NULL These forms change whether a domain is marked to allow NULL values or to reject NULL values. You can only SET NOT NULL when the columns using the domain contain no null values. ADD domain_constraint This form adds a new constraint to a domain using the same syntax as CREATE DOMAIN [create_domain(7)]. This will only succeed if all columns using the domain satisfy the new constraint. DROP CONSTRAINT This form drops constraints on a domain. OWNER This form changes the owner of the domain to the specified user. SET SCHEMA This form changes the schema of the domain. Any constraints associated with the domain are moved into the new schema as well. You must own the domain to use ALTER DOMAIN. To change the schema of a domain, you must also have CREATE privilege on the new schema. To alter the owner, you must also be a direct or indirect member of the new owning role, and that role must have CREATE privilege on the domain's schema. (These restrictions enforce that altering the owner doesn't do anything you couldn't do by dropping and recreating the domain. However, a superuser can alter ownership of any domain anyway.)
PARAMETERSname The name (possibly schema-qualified) of an existing domain to alter. domain_constraint New domain constraint for the domain. constraint_name Name of an existing constraint to drop. CASCADE Automatically drop objects that depend on the constraint. RESTRICT Refuse to drop the constraint if there are any dependent objects. This is the default behavior. new_owner The user name of the new owner of the domain. new_schema The new schema for the domain.
NOTESCurrently, ALTER DOMAIN ADD CONSTRAINT and ALTER DOMAIN SET NOT NULL will fail if the named domain or any derived domain is used within a composite-type column of any table in the database. They should eventually be improved to be able to verify the new constraint for such nested columns.
EXAMPLESTo add a NOT NULL constraint to a domain: ALTER DOMAIN zipcode SET NOT NULL;
To remove a NOT NULL constraint from a domain: ALTER DOMAIN zipcode DROP NOT NULL;
To add a check constraint to a domain: ALTER DOMAIN zipcode ADD CONSTRAINT zipchk CHECK (char_length(VALUE) = 5);
To remove a check constraint from a domain: ALTER DOMAIN zipcode DROP CONSTRAINT zipchk;
To move the domain into a different schema: ALTER DOMAIN zipcode SET SCHEMA customers;
COMPATIBILITYALTER DOMAIN conforms to the SQL standard, except for the OWNER and SET SCHEMA variants, which are PostgreSQL extensions.
SEE ALSOCREATE DOMAIN [create_domain(7)], DROP DOMAIN [drop_domain(7)] 0
Johanes Gumabo
Data Size : 13,993 byte
man-alter_domain.7Build : 2024-12-05, 20:55 :
Visitor Screen : x
Visitor Counter ( page / site ) : 3 / 182,201
Visitor ID : :
Visitor IP : 18.188.211.58 :
Visitor Provider : AMAZON-02 :
Provider Position ( lat x lon ) : 39.962500 x -83.006100 : x
Provider Accuracy Radius ( km ) : 1000 :
Provider City : Columbus :
Provider Province : Ohio , : ,
Provider Country : United States :
Provider Continent : North America :
Visitor Recorder : Version :
Visitor Recorder : Library :
Online Linux Manual Page : Version : Online Linux Manual Page - Fedora.40 - march=x86-64 - mtune=generic - 24.12.05
Online Linux Manual Page : Library : lib_c - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Online Linux Manual Page : Library : lib_m - 24.10.03 - march=x86-64 - mtune=generic - Fedora.40
Data Base : Version : Online Linux Manual Page Database - 24.04.13 - march=x86-64 - mtune=generic - fedora-38
Data Base : Library : lib_c - 23.02.07 - march=x86-64 - mtune=generic - fedora.36
Very long time ago, I have the best tutor, Wenzel Svojanovsky . If someone knows the email address of Wenzel Svojanovsky , please send an email to johanes_gumabo@yahoo.co.id .
If error, please print screen and send to johanes_gumabo@yahoo.co.id
Under development. Support me via PayPal.
ERROR : Need New Coding : (rof_escape_sequence|91|alter_domain.7|1|\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $ |.\\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $
) (parse_manual_page_|249|alter_domain.7|1|\"|.\\" auto-generated by docbook2man-spec $Revision: 1.1.1.1 $
)