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 ( 86+ )
Otras preguntas
Certain seismic waves travel as? A. electromagnetic and transverse waves. B. visible light and longitudinal waves. C. longitudinal and transverse waves. D. co
A change in the nucleus of an atom that converts the atom from one element to another element is called (1) combustion (3) polymerization (2) neutralization (4)
According to the electron-cloud model of the atom, an orbital is a (1) circular path traveled by an electron around the nucleus (2) spiral path traveled by an e
Alfred is taking a trip. He drove 150 mi and then stopped to refuel. He will drive 60 mph to finish his trip. Let x represent the hours it takes for Alfred to c
Which particle has a mass that is approximately the same as the mass of a proton? (1) an alpha particle (3) a neutron (2) a beta particle (4) a positron
Which of the following is a compound sentence? A. Anywhere you want to go, we will follow. B. Do you want to go to the diner? C. Afte
Which sentence uses commas correctly? A. Please deliver the signed application to 1417 Corporate Boulevard, Baltimore, Maryland, by Monday, March 12. B. We will
What is the gerund phrase in the sentence? A. became more difficult for Oz B. on his library books C. after his sister spilled juice D. Finishing the as
h(x)=2x²+x-10 2x²+x-10=0
Potassium hydroxide is classified as an Arrhenius base because KOH contains(1) OH- ions (2) O2- ions (3) K+ ions (4) H+ ions
