Try OpenEdge Now
skip to main content
SQL Reference
SQL Reference : OpenEdge SQL Elements and Statements in Backus Naur Form : Data types syntax in BNF : Statements, DDL and DML syntax in BNF : CREATE TABLE : Column Constraint
 
Column Constraint
column_constraint ::=
[ CONSTRAINT constraint_name]
NOT NULL [ PRIMARY KEY | UNIQUE ]| REFERENCES
[owner_name.]table_name[ ( column_name ) ]
| CHECK ( search_condition )