Technical Development - Tiveloper.

1. Defines a condition 2. Not-Allowed expressions : - CURRVAL, NEXTVAL, LEVEL, ROWNUM pseudocolumns - SYSDATE, UID, USER, and USERENV functions - Queries that refer to other values in other rows ex) .... , salary NUMBER(2) CONSTRAINT emp_salary_min CHECK (salary > 0 ), ..... 3. A single column can have multiple CHECK constraints

1. Defines a condition 2. Not-Allowed expressions : - CURRVAL, NEXTVAL, LEVEL, ROWNUM pseudocolumns - SYSDATE, UID, USER, and USERENV functions - Queries that refer to other values in other rows ex) .... , salary NUMBER(2) CONSTRAINT emp_salary_min CHECK (salary > 0 ), ..... 3. A single column can have multiple CHECK constraints