(A) A field that uniquely identifies each record.The requirement that no record may have a null primary key and that entries for primary keys be unique is called the
(A) Rule of Referential Integrity.
(B) Rule of Primary Keys.
(C) Rule of Entity Integrity.
(D) Rule of Null Values.
(C) Rule of Entity Integrity.
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What is the efficiency of selection sort?
a. O(n2). b. O(n log n). c. O(n). d. O(1).
The bits in the result of an expression using the _______ operator are set to one if at least one of the corresponding bits in either operand is set to one. Otherwise, the bits are set to zero.
Fill in the blank(s) with the appropriate word(s).
Se puede hacer clic en un alfiler junto a un archivo de la lista de documentos recientes, para "fijar" ese archivo a la lista.
Answer the following statement true (T) or false (F)
To select a specific set of records to merge, you must ____.
A. edit B. filter C. sort D. print