In SQL, what is the primary role of the optimizer within the query processor?

Which SQL command is used to provide another user with the ability to execute a specific query or view?

Which SQL clause allows applying aggregate functions (e.g., SUM, AVG) on groups of rows?

52.   61 In ARIES-style recovery, the REDO phase is used to:

Which component of an RDBMS is responsible for parsing SQL queries and validating syntax before execution?

Which dimension technique is used to track historical changes in dimension attribute values?

In SQL, which function returns the number of rows in a result set?

Which level of the ANSI/SPARC architecture is responsible for hiding physical details such as storage structure and access paths?

Which concurrency problem occurs when two transactions read and update the same row simultaneously, causing conflicting outcomes?

In SQL filtering, which operator is most appropriate for matching values that fall outside a specific numeric range?