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  • Question
  • Explain Check constraint.


  • Correct Answer
  • Oracle check constraint is used to ensure that before inserting the data in the database, it is validated and checked for the condition Example: Below, the constraint is that the id has to be between 0 and 1000 create table employee ( id number check (id between 0 and 1000), Name varchar(200) ); 


  • More questions

    • 1. Which one of the following sorts rows in SQL?

    • Options
    • A. ORDER BY
    • B. GROUP BY
    • C. SORT BY
    • D. ALIGN BY
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    • 2. What is the meaning of ABAP editor integrated with ABAP data dictionary?
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    • 3. Which one of the following is not a 'Money Market Instrument'?

    • Options
    • A. Commercial Paper
    • B. Equity Shares
    • C. Certificate of Deposit
    • D. Treasury Bills
    • Discuss
    • 4. What is onshore outsourcing?
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    • 5. What is the Use of SPAN in HTML and give one example?
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    • 6. .What are the different types of environments available in the web?
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    • 7. What is web portal?
    • Discuss
    • 8. What is web application?
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    • 9. Describe a time when your workload was heavy and how you handled it?
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    • 10. Describe a time when you made a mistake ?
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