A(n) ________ is used to query unrelated tables or queries and combine the results into a single dataset. This type of query is different from querying related tables as it combines two SQL SELECT statements
A) crosstab query B) SQL query C) subquery D) union query
D
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In database connection string terminology, DSN stands for:
a. data structure name b. dynamic structure name c. data source name d. dynamic source name
It can be wasteful to double a vector’s size when more space is needed. For example, a full vector of 1,000,000 elements resizes to accommodate 2,000,000 elements when a new element is added, leaving 999,999 unused elements. You can use ______ and to __________ control space usage better.
Fill in the blank(s) with the appropriate word(s).
Define a structure type catNum to represent a catalog number consisting of a two- or three-character category code followed by an integer. Then, define a structure type catEntry to represent a catalog entry. Each entry has a catalog number, a de- scription, a wholesale price, and a retail price.
What will be an ideal response?
Evaluate this postfix expression 3 16 6 - * 5 /
What will be an ideal response?