What is a NoSQL database?
What will be an ideal response?
The term NoSQL refers to a wide variety of different database technologies that were developed in order to overcome some of the limitations of relational databases. For example, the volume of data generated by today's applications and the frequency with which this data is accessed can create performance and processing issues with relational databases. NoSQL databases are organized differently than relational databases are organized and so usually they do not use tables and SQL.
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Explain three schemes that you could use to have a function “return” two data items to the calling function. Note: you can’t use global variables.
What will be an ideal response?
Which of the following statements describes block scope?
a. It begins at the opening { of the class declaration and terminates at the closing }. b. It limits label scope to only the method in which it is declared. c. It begins at the identifier's declaration and ends at the terminating right brace (}). d. It is valid for one statement only.
When adjusting column width, approximately ____________ of blank space should be left between the longest line and the column border.
A. 1" - 1.5" B. 2" C. 0.5" - 0.75" D. 2" - 2.5"
When a control's value is found to be invalid during constraint validation, the ____ event is triggered.?
A. ?input B. ?invalid C. ?change D. ?focus