Which of the following scenarios may lead to an irrecoverable error in a…

TPSC Computer/IT Posts · 2025 · Senior Informatics Officer · Section DISRO Scientist/Engineer SC · 2009 · Computer ScienceGATE · 2003 · CS

1. A.

   A transaction writes a data item after it is read by an uncommitted transaction

2. B.

   A transaction reads a data item after it is read by an uncommitted transaction

3. C.

   A transaction reads a data item after it is written by a committed transaction

4. D.

   A transaction reads a data item after it is written by an uncommitted transaction

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