Question
Consider a two-digit number where the ratio of the unit
digit to the tens digit is 2:3. If the total of these digits equals 15, what is the product of the two digits of this number?Solution
Let, unit’s digit and ten’s digit of number be 2x and 3x respectively. 2x + 3x = 15 5x = 15 x = 15/5 = 3 Therefore, required number = 96 So, products of digits = 9 × 6 = 54
Which of these is not a typical data warehouse characteristic?
Which type of schema uses a central fact table connected to dimension tables?
Which type of schema normalizes dimension tables into multiple related tables?
Which type of data warehouse is focused on specific business lines or departments?
Which type of OLAP allows analysis of multidimensional data stored in relational databases?
Which of the following is a real-time data warehouse application?
A surrogate key is:
Which of these is not a typical data warehouse characteristic?
A star schema in a data warehouse consists of:
What is meant by 'cardinality' in data modeling?
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