R: adding not null constraints on columns

ALTER TABLE myTable ADD CONSTRAINT constraintName CHECK (myColumn IS NOT
NULL);

-----Messaggio originale-----
Da: Susan [mailto:brknrose(at)counterconspiracy(dot)org]
Inviato: mercoledì 12 febbraio 2003 00:45
A: pgsql-sql(at)postgresql(dot)org
Oggetto: [SQL] adding not null constraints on columns

Is there a way to add not null constraints on a column after the column has
been created? Any help would be appreciated. Thanks.

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