CREATE TABLE TOYCREATOR( ToyID NUMBER(10) FOREIGN KEY REFERENCES TOYS(ToyID), CreatorID NUMBER(4) FOREIGN KEY REFERENCES

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answerhappygod
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CREATE TABLE TOYCREATOR( ToyID NUMBER(10) FOREIGN KEY REFERENCES TOYS(ToyID), CreatorID NUMBER(4) FOREIGN KEY REFERENCES

Post by answerhappygod »

CREATE TABLE TOYCREATOR(
ToyID NUMBER(10) FOREIGN KEY REFERENCES TOYS(ToyID),
CreatorID NUMBER(4) FOREIGN KEY REFERENCESCREATOR(CreatorID)
);
Please will you explain how we can write the above statementsusing the CONSTRAINT statement on the foeign keys as well as whenwe use NULL and NOT NULL.
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