Oracle: Modifying Data & Multiple Databases Common Errors & Integrity During DML Beginner
Q Which error occurs when inserting NULL into a NOT NULL column?
  • A ORA-00942: table does not exist
  • B ORA-01017: invalid username
  • C ORA-00904: invalid identifier
  • D ORA-01400: cannot insert NULL
FPSC - Database Administrator Model Papers -2026
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Word of the Day
02 Nov
Obligation
an act or course of action to which a person is morally or legally bound; a duty or commitment.
Ψ§Ψ­Ψ³Ψ§Ω†ΨŒ فرآ، ذمہ داری

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