Options: (A)It is hidden within a database and can only be recovered if one is given certain clues (an example IS encrypted information). (B) The process of executing implicit previously unknown and potentially useful information from data (C) An extremely complex molecule that occurs in human chromosomes and that carries genetic information in the form of genes. (D) None of these 3
. How to fit long texts in a single cell with multiple lines?
Options: Start typing in the cell and press the Enter key to start another line
B. Use the Wrap Text option in the Format -> Alignment menu
C. Use the Shrink to Fit option in the Format -> Cells -> Alignment menu
D. All of above
Options: a. means do not change the value in the primary key field if that record has related records in another table
b. means change all the related records in child tables if the record in parent table is changed
c. Both of above
d. None of above
Exposure to sunlight helps a person improve his health because
Options: the infrared light kills bacteria in the body, resistance power increases, the pigment cells in the skin get stimulated and produce a healthy tan, the ultraviolet rays convert skin oil into Vitamin D
Options: A sequence is an object that generates a sequential series of unique numbers., Sequences are most often used to provide values for surrogate keys., NextVal and CurrVal are both sequence methods., Sequences guarantee valid surrogate key values.