BACHELOR OF BUSINESS ADMINISTRATION

BUSINESS ADMINISTRATION

COMPUTER APPLICATION IN BUSINESS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The number of columns in a table is equal to:
A
The number of row titles
B
The number of row titles, plus one
C
The number of column headers, plus one
D
The number of column headers
Explanation: 

Detailed explanation-1: -The number of columns in a table is known as the degree. The degree of the table can easily find out by analyzing the number of columns in a table. The degree of a table is the total number of attributes present in the table. The degree of the table generally contains the field name.

Detailed explanation-2: -The number of columns is based on the maximum number of cells from the table rows.

Detailed explanation-3: -Query to count the number of columns in a table: select count(*) from user tab columns where table name = ‘tablename’; Replace tablename with the name of the table whose total number of columns you want returned. Save this answer.

Detailed explanation-4: -Degree-The number of attributes or columns in a relation is called the Degree of the relation. Cardinality-The number of tuples/ rows in a relation is called the Cardinality of the relation.

There is 1 question to complete.