Which statement adds a column called salary to the employees table having 100 rows,
which cannot contain null?
A.
Option A
B.
Option B
C.
Option C
D.
Option D
Explanation:
http://www.comp.nus.edu.sg/~ooibc/courses/sql/ddl_table.htm (see changing table
structures)
should be C.
Yes answer is C. The url http://www.comp.nus.edu.sg/~ooibc/courses/sql/ddl_table.htm
gives absolutely WRONG information. Try it!
C
Thanks