Is it possible to add any type of constraint to an existing table? Are there any restrictions?
What will be an ideal response?
A constraint can be added to a table with the ALTER TABLE ADD CONSTRAINT statement,
but the values already entered into the table or tables must already conform to the constraint to be
added.
Computer Science & Information Technology
You might also like to view...
Before tokenizing a string, you should use the ____________ method to remove leading and/or trailing white-space characters and prevent them from being included in the first and last tokens.
a. Trim b. Remove c. Split d. Sub string
Computer Science & Information Technology
Static variables are often used:
(a) in arithmetic expressions (b) to communicate between objects (c) within looping structures (d) all of the above
Computer Science & Information Technology
Word uses a ________ to translate text
A) machine translation service B) document C) dictionary D) thesaurus
Computer Science & Information Technology