SQL for Database Construction - Database MCQ Questions and answers- Technical Aptitude

A. rows can be modified according to criteria only.

B. rows cannot be copied in mass from one table to another only.

C. rows can be inserted into a table only one at a time only.

D. rows can either be inserted into a table one at a time or in groups.

A. Greater security

B. SQL can be optimized

C. Code sharing

D. Increased network traffic

A. to simplify a result only.

B. to prevent the display of sensitive data only.

C. to accomplish both of the above.

D. None of the above are reasons for using an SQL view.

A. BEFORE

B. INSTEAD OF

C. AFTER

D. All of the above.

A. change the table structure.

B. change the table data.

C. add rows to the table.

D. delete rows from the table.

A. The LIMIT constraint

B. The CHECK constraint

C. The VALUE constraint

D. None of the above is correct.

A. System date

B. Range checks

C. Lists of values

D. Comparing one column value to another within the same table

A. To save users from having to write an expression.

B. To ensure that the results are consistent.

C. To accomplish both of the above.

D. None of the above is correct - computations cannot be placed in a view.

A. GROUP BY

B. WHERE

C. ORDER BY

D. FROM

A. True

B. False