ORA-00904 invalid identifier code

Question

Please help me with this code. i try to create a table but it keep poping out the error ORA-00904: : invalid identifier

CREATE TABLE tblParentMaster
    ( HOHCodeid VARCHAR2(10),
    Parent1 VARCHAR2(10),
    Address VARCHAR2(30),
    Home_Phone_Number CHAR(10),
    Address1 VARCHAR2(30),
    City VARCHAR2(20),
    States CHAR(2),
    Zip CHAR(5),
    Parent2Code VARCHAR2(10),
    Parent2 VARCHAR2(10),
    Address2 VARCHAR2(30),
    Volunteer CHAR(1) DEFAULT 'N',
    Email VARCHAR2(20),
        CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCode),
        CONSTRAINT nn_tblParentMaster_Parent1 NOT NULL (Parent1),
        CONSTRAINT ck_tblParentMaster_Volunteer CHECK (Volunteer IN ('Y', 'N'))
);

Answer 1

That isn't how you declare a not-null constraint. You can either have a named constraint, as shown in the documentation:

...
Parent1 VARCHAR2(10),
...
CONSTRAINT nn_tblParentMaster_Parent1 CHECK (Parent1 is NOT NULL)
...

Or declare it in-line, which won't have a nice name:

...
Parent1 VARCHAR2(10) NOT NULL,
...

Your PK is wrong as well, you don't have a column called just HOHCode:

CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCodeId),

So:

CREATE TABLE tblParentMaster
    ( HOHCodeid VARCHAR2(10),
    Parent1 VARCHAR2(10),
    Address VARCHAR2(30),
    Home_Phone_Number CHAR(10),
    Address1 VARCHAR2(30),
    City VARCHAR2(20),
    States CHAR(2),
    Zip CHAR(5),
    Parent2Code VARCHAR2(10),
    Parent2 VARCHAR2(10),
    Address2 VARCHAR2(30),
    Volunteer CHAR(1) DEFAULT 'N',
    Email VARCHAR2(20),
        CONSTRAINT pk_tblParentMaster_HOHCode PRIMARY KEY (HOHCodeId),
        CONSTRAINT nn_tblParentMaster_Parent1 CHECK (Parent1 is NOT NULL),
        CONSTRAINT ck_tblParentMaster_Volunteer CHECK (Volunteer IN ('Y', 'N'))
);

table TBLPARENTMASTER created.