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 ( 79+ )
Otras preguntas
According to the text, who held the lanterns in the Old North Church? A. William Dawes and Dr. Samuel Prescott B. Paul Revere and Thomas Bernard C. Samuel Adams
Which is the product of 7/9 and 6? A. 1 4/9 B. 3 7/9 C. 4 2/3 D. 7 5/7
1) How many students were all involved in the survey? A) 30 B) 40 C) 50 3) What is the size of the class interval?
Why might it be more difficult to bring more change in a traditional economy than in a market economy?
Define each following sets by listing its elements, the set of letters in the word "salt"
Mention the name of the organ shed off during the menstrual cycle Once a female reaches puberty, the uterus sheds an unfertilized egg along with the _________.
Can someone please give me the (Answers) to this? ... please ... I need help….
how has the new potato GMO been used to solve the problem of feeding the changing population?
Which type of heat island is present in the air layer from Ground LEVEL to the tops of trees or buildings? A. a sub-surface heat island B. a canopy heat island
Infectious diseases can be spread by food and air. true or false?