Informatics Practices
Assertion (A): Aggregate functions in SQL operate on multiple set of values and return a single value as the output.
Reasoning (R): The aggregate functions are used to perform some fundamental arithmetic operations such as MAX(), MIN(), SUM() etc.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
SQL Queries
1 Like
Answer
Both A and R are true and R is the correct explanation of A.
Explanation
Aggregate functions (multiple-row functions) in SQL operate on multiple sets of values and return a single value as the output. Some common aggregate functions are SUM(), MAX(), MIN(), etc., which are used to perform fundamental arithmetic operations on groups of values.
Answered By
1 Like
Related Questions
Assertion (A): The HAVING clause is used with GROUP BY clause and aggregate functions.
Reasoning (R): WHERE clause specifies the condition on individual rows or records.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): SQL queries are performed on a table created under a database.
Reasoning (R): The database is a folder created by the user in MySQL workbench. Thereafter, the tables are created in a database where various queries can be performed using SQL commands.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): A Join is a query that combines rows from two or more tables.
Reasoning (R): Equi-joins are joins based on equality conditions.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.
Assertion (A): The INTERSECT operator returns all rows that are in both result sets.
Reasoning (R): The UNION and INTERSECT yields same output.
- Both A and R are true and R is the correct explanation of A.
- Both A and R are true but R is not the correct explanation of A.
- A is true but R is false.
- A is false but R is true.