Which Keywords Create a Shared Lock on a Table to Prevent

question 20

Multiple Choice

Which keywords create a shared lock on a table to prevent another user from making changes to data in specified columns?​

• A) ​SELECT...LOCK
• B) ​SELECT...COMMIT
• C) ​SELECT...FOR UPDATE
• D) ​SELECT...FOR CHANGE

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Definitions:

Dependent Variable

In an experiment or study, it's the variable being tested and measured, which is expected to be influenced by another variable (the independent variable).

Dependent Variable

A variable in a scientific experiment that changes in response to the manipulation of the independent variable.

Independent Variable

In research, the variable that is manipulated to observe its effect on a dependent variable.