Question
What does the term "referential integrity" mean in a
database context?Solution
Referential integrity refers to ensuring that foreign key values in one table match the corresponding primary key values in another table, maintaining data consistency and relationships.
Five articles out of which 3 are cups and rest are glasses have to be arranged on a shelf. Find the number of ways of arrangement in which all three cup...
- Six students are to be seated in a row. Four of them are boys and the rest are girls. In how many ways can they be arranged such that the two girls do not ...
A man has 15 friends out of which 7 are his relatives. In how many ways can he invite his 9 friends in which at least 5 must be his relatives?
- A committee of 5 members is to be selected from 4 girls and 6 boys. Find the number of ways to form team such that the team consists of at most 2 girls.
In how many different ways can the letter of the word ‘STRONG’ be arranged?
How many four-letter words without repetition having exactly two vowels can be formed by using the letters of the word "RECLAIM"?
In how many different ways can 6 boys and 3 girls to be seated in a row such that all the boys seated together and all the girls seated together?
In how ways can the selection be made so that a particular member is always included?
...How many 5-digit numbers can be formed using digits 1–7 such that digits are odd-even-odd-even-odd?
A team of 7 researchers is to be formed from 6 biologists and 4 chemists. Find the number of ways to form the team if it must include at least 5 biologi...
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