Q1. What is sysdate? Is it a pseudo column or system variable or a function?Ans. It is a function. Q2. Which one is faster Delete or Truncate?Ans. Truncate is faster. Q3. Can we use Decode function is PL/SQL without SQL statement?Ans. No. Q4. Can a primary key column have a null value?Ans. No. Q5. CanContinue reading “Few more questions”
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