jjjjjj2588
jjjjjj2588
01-07-2017
History
contestada
Contrast foreign key and primary key
Respuesta :
countingstarz0304
countingstarz0304
06-07-2017
A primary key
is a combination of fields that specifically identify a record in a table, so that an separate record can be found without confusion.
While a foreign key
is a
key
used to link two tables together.
Answer Link
VER TODAS LAS RESPUESTAS ( 25+ )
Otras preguntas
quadratic equation and its standard form
The black middle class is larger than most people assume True False
5. Which of the following statements most accurately differentiates potential and kinetic energy? A. Any object that has motion has kinetic energy, while any ob
The government plans to ease regulations on the amount of mercury allowed into the atmosphere even though mercury is proved to be hazardous to people and wildli
Which of the following is NOT a requirement for Hardy-Weinberg equilibrium? a. No mate selection b. No mutation c. No migration d. Small population size
Formation of filtrate depends on a a. pressure gradient b. concentration gradient c. volume gradient d. temperature gradient
Based on the corporate valuation model, the total corporate value of Chen Lin Inc. is $500 million. Its balance sheet shows $110 million in notes payable, $90 m
As ADH production declines, a. glomerular filtration increases b. potassium reabsorption increases c. reabsorption of water increases d. the urine volume in
If an object maps onto itself after being rotated 180 degrees or less about a line, it has
Some interphase cells contain twice as much DNA as other interphase cells within the same tissue sample. Is this normal? Why?