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| ALTER DOMAIN(7) | SQL - Dil Deyimleri | ALTER DOMAIN(7) | 
ALTER DOMAIN isim
    { SET DEFAULT ifade | DROP DEFAULT }
ALTER DOMAIN isim
    { SET | DROP } NOT NULL
ALTER DOMAIN isim
    ADD alan-kısıtı
ALTER DOMAIN isim
    DROP CONSTRAINT kısıt-ismi [ RESTRICT | CASCADE ]
ALTER DOMAIN isim
    OWNER TO yeni-aidiyet
ALTER DOMAIN zipcode SET NOT NULL;
ALTER DOMAIN zipcode DROP NOT NULL;
ALTER DOMAIN zipcode
    ADD CONSTRAINT zipchk CHECK (char_length(VALUE) = 5);
ALTER DOMAIN zipcode DROP CONSTRAINT zipchk;
| PostgreSQL | ALTER DOMAIN(7) | 
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