Informatics Practices
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.
SQL Queries
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Answer
Both A and R are true but R is not the correct explanation of A.
Explanation
An SQL JOIN clause is used to combine rows from two or more tables based on a common field between them. An Equi join is a simple SQL join condition that uses the equal sign (=) as a comparison operator to define a relationship between two tables based on a common field.
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Related Questions
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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.
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Reasoning (R): The aggregate functions are used to perform some fundamental arithmetic operations such as MAX(), MIN(), SUM() etc.
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Reasoning (R): The UNION and INTERSECT yields same output.
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Reasoning (R): ORDER BY clause always follows other clauses.
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