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Data Access Interview Questions & Answers

Below we have listed all the Data Access Interview Questions and answers. Feel free to comment on any Data Access Interview Questions or answer by the comment feature available on the page.

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What does COMMIT do ? View Answer

Define Transaction ? View Answer

When does a Transaction end ? View Answer

There is a field of type character in the table, but we are storing numeric values like (Roll number) in this field, so if we want to sort the field (in java) according to numbers.How? View Answer

What is RULE-based approach to optimization ? View Answer

Can we delete tuples in a table based on date column? And how? View Answer

What is Read-Only Transaction ? View Answer

What is the effect of setting the value "CHOOSE" for OPTIMIZER_GOAL, parameter of the ALTER SESSION Command ? View Answer

What is Execution Plan ? View Answer

What is the function of Optimizer ? View Answer

What is SAVE POINT ? View Answer

What is COST-based approach to optimization ? View Answer

What is the effect of setting the value "ALL_ROWS" for OPTIMIZER_GOAL parameter of the ALTER SESSION command ? View Answer

What are the values that can be specified for OPTIMIZER_GOAL parameter of the ALTER SESSION Command ? View Answer

What are the values that can be specified for OPTIMIZER MODE Parameter ? View Answer

What are the factors that affect OPTIMIZER in choosing an Optimization approach ? View Answer

What are the different approaches used by Optimizer in choosing an execution plan ? View Answer

What does ROLLBACK do ? View Answer

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