Each answer below shows example data from a table. Which answer is an example of the missing values problem?
Options: Three columns have the values 534-2435, 534-7867, and 546-2356 in the same row., Three rows have the values Brown Small Chair, Small Chair Brown, and Small Brown Chair in the same column., Three rows have the values Brown, NULL, and Blue in the same column., One row has the value "He is interested in a Silver Porsche from the years 1978-1988" in a column.
The total capacitance of a series capacitor circuit is:
Options: equal to the sun of the individual capacitive-reactance values, equal to the sum of the individual capacitance values, equal to the source voltage divided by total current, less than the value of the smallest capacitor
Before any changes to database structure are attempted one should first:
Options: clearly understand the current structure and contents of the database only., test any changes on a test database only., create a complete backup of the operational database only., All of the above should be done.
Options: (A)is executed when a visible window is being created (B) is executed when a window is being closed, it is possible to prevent the window from closing (C) when the background of a window must be erased this event is executed (D) when a window must be re-painted this event is executed 1
Options: Data contained in a newly-installed system, Data rejected during the installation of a new system, Data contained in a file system, Data contained by a system used prior to the installation of a new system