A primary key is a unique key that can uniquely identify each row/record in afile/table while
a foreign key is a field in a record that points to a key field in another table
steve williams answered the question on November 16, 2017 at 01:49
-
Explain the role of problem identification in system development
(Solved)
Explain the role of problem identification in system development.
Date posted:
November 16, 2017
.
Answers (1)
-
Outline three advantages of using computer for data processing over other types of office and business equipment.
(Solved)
Outline three advantages of using computer for data processing over other types of office and business equipment.
Date posted:
November 16, 2017
.
Answers (1)
-
Differentiate between Analogue and Digital data.
(Solved)
Differentiate between Analogue and Digital data.
Date posted:
November 16, 2017
.
Answers (1)
-
State and explain the three basic types of program control structures.
(Solved)
State and explain the three basic types of program control structures.
Date posted:
November 16, 2017
.
Answers (1)
-
(a) Name any two types of non-printable guides in DTP.
(b) Explain the functions of each of non-printable guides named in 10(a) above.
(Solved)
(a) Name any two types of non-printable guides in DTP.
(b) Explain the functions of each of non-printable guides named in 10(a) above.
Date posted:
November 16, 2017
.
Answers (1)
-
With aid of an example, describe an embedded computer?
(Solved)
With aid of an example, describe an embedded computer?
Date posted:
November 16, 2017
.
Answers (1)
-
State two features of a fifth generation computer that distinguishes it from a fourth generation computer
(Solved)
State two features of a fifth generation computer that distinguishes it from a fourth generation computer.
Date posted:
November 16, 2017
.
Answers (1)
-
Dr. Livondo would like to demonstrate a concept using a computer program on his laptop to members of his village health committee. Give two reasons why...
(Solved)
Dr. Livondo would like to demonstrate a concept using a computer program on his laptop to members of his village health committee. Give two reasons why...
Date posted:
November 16, 2017
.
Answers (1)
-
Define the following terminologies in relation to networking (i) Crosstalk (ii) Noise (iii) Attenuation (iv) Frequency
(Solved)
Define the following terminologies in relation to networking
i) Crosstalk
ii) Noise
iii) Attenuation
iv) Frequency
Date posted:
November 15, 2017
.
Answers (1)
-
List any four likely causes of data and program loss in a computer system?
(Solved)
List any four likely causes of data and program loss in a computer system?
Date posted:
November 15, 2017
.
Answers (1)
-
Define the following terms in relation to computer software (a) Freeware (b) Propriety (c) Open source
(Solved)
Define the following terms in relation to computer software
a) Freeware
b) Propriety
c) Open source
Date posted:
November 15, 2017
.
Answers (1)
-
What is system maintenance?
(Solved)
What is system maintenance?
Date posted:
November 15, 2017
.
Answers (1)
-
State and explain any four operating system disk management utilities
(Solved)
State and explain any four operating system disk management utilities
Date posted:
November 15, 2017
.
Answers (1)
-
Define the term cropping as used in DTP software
(Solved)
Define the term cropping as used in DTP software
Date posted:
November 15, 2017
.
Answers (1)
-
Convert 5D616 to Binary
(Solved)
Convert 5D616 to Binary
Date posted:
November 15, 2017
.
Answers (1)
-
What is automated production. List two advantages and two disadvantages of automated production
(Solved)
What is automated production. List two advantages and two disadvantages of automated production
Date posted:
November 15, 2017
.
Answers (1)
-
Explain Data range, legend and axis as used in spreadsheet charts.
(Solved)
Explain Data range, legend and axis as used in spreadsheet charts.
Date posted:
November 15, 2017
.
Answers (1)
-
List and describe four areas of application of spreadsheets.
(Solved)
List and describe four areas of application of spreadsheets
Date posted:
November 15, 2017
.
Answers (1)
-
Explain the difference between Gas Plasma Display and Liquid Crystal display Monitors
(Solved)
Explain the difference between Gas Plasma Display and Liquid Crystal display Monitors
Date posted:
November 13, 2017
.
Answers (1)
-
State the functions of the following protocols; (a) FTP(b) TCP/IP
(Solved)
State the functions of the following protocols;
(a) FTP
(b) TCP/IP
Date posted:
November 13, 2017
.
Answers (1)