Answer:
It means that it matches a to z in lowercase, 0 to 9 in digits and \ - in characters.
Explanation:
As In regular expressions such as [a-z] means that it will match between a to z in lower case.
In [0-9] means it will search from 0 to 9 in digits.
so
<em>[a-z0-9] means that it will match all from a to z in lowercase and 0 to 9 in digits.</em>
Answer:
the two limitation i can think about is the efficiency like if there are bugs or glitches or if it can get broken into and the second one is if it is running the correct program or not a lot of people deal with this problem.
Explanation: personally these are the two i can come up with at the moment
Answer:
D) a multivalued attribute
Explanation:
A multivalued attribute can have more than one value associated with the entity key.
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