CREATE TABLE cliente (
codempresa INTEGER NOT NULL,
codcliente INTEGER NOT NULL,
nomcliente VARCHAR2(60),
tipomercado CHAR(01),
datainclusao DATE,
usuinclusao VARCHAR2(15),
dataalteracao DATE,
usualteracao VARCHAR2(15),
uf CHAR(02) NOT NULL,
cep CHAR(09),
PRIMARY KEY ( codempresa, codcliente));
COMMENT ON COLUMN cliente.tipomercado IS
'I - MERCADO INTERNO
E - MERCADO EXTERNO';
How can i fix the following error? ORA-02291: integrity constraint parent key not found