Adobe Campaign Business Practitioner (CBP) Certification Practice Exam

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Which SQL statement is typically used for specifying groups in data queries?

  1. SELECT

  2. GROUP BY

  3. ORDER BY

  4. WHERE

The correct answer is: GROUP BY

The reason why "GROUP BY" is the correct choice for specifying groups in data queries lies in its fundamental role in SQL operations. The "GROUP BY" statement is specifically designed to arrange identical data into groups, which is essential when performing aggregate functions like COUNT, SUM, AVG, etc. This allows for the summarization of data based on specific categories or fields. For example, if you wanted to know the total sales per region from a sales database, you would use "GROUP BY" on the region column to create a group for each distinct region, allowing the calculation of total sales for each region. The other options perform different functions: "SELECT" is used to specify which columns to return in a query but does not group rows. "ORDER BY" is utilized for sorting the results of a query in a specified order. "WHERE" is used to filter records based on certain conditions. While these statements play important roles in querying data, they do not facilitate the grouping of data like "GROUP BY" does.