Computer Science

The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

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Reason — The DISTINCT keyword in SQL is used to eliminate duplicate rows from the results of a query. Therefore, when a user wants to ensure that only unique rows are returned, they must use the DISTINCT qualifier in their SQL statement.

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Computer Science

The qualifier DISTINCT must be used in an SQL statement when we want to eliminate duplicate rows.

SQL Queries

Answer

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SQL is a programming language.

SELECT DISTINCT is used if a user wishes to see duplicate columns in a query.

DISTINCT and its counterpart, ALL, can be used more than once in a SELECT statement.

DISTINCT and its counterpart, ALL, can be used together on single field in a SELECT statement.