SQL FOR DATABASE CONSTRUCTION

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

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

rows can be modified according to criteria only.

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

Code sharing

SQL can be optimized

Increased network traffic

Greater security

to accomplish both of the above.

to prevent the display of sensitive data only.

to simplify a result only.

None of these

AFTER

BEFORE

INSTEAD OF

All of these

change the table structure.

add rows to the table.

delete rows from the table.

change the table data.