-- https://docs.oracle.com/en/database/oracle/oracle-database/23/sqlrf/constraint.html
CREATE TABLE divisions  
   (div_no    NUMBER  CONSTRAINT check_divno
              CHECK (div_no BETWEEN 10 AND 99) 
              DISABLE, 
    div_name  VARCHAR2(9)  CONSTRAINT check_divname
              CHECK (div_name = UPPER(div_name)) 
              DISABLE, 
    office    VARCHAR2(10)  CONSTRAINT check_office
              CHECK (office IN ('DALLAS','BOSTON',
              'PARIS','TOKYO')) 
              DISABLE);