What is the purpose of the SQL SELECT statement, and how does it contribute to database queries?
11:35 AM - Dec 19, 2023 (UTC)
The SELECT statement allows you to pull specific data from one or more database tables. You can select individual columns, all columns, or even calculate the data before retrieving it.
Basic SELECT queries simply extract data, providing various functions to transform and format it before presenting the statement You can apply:
Filtering: Limit results based on conditions using the WHERE clause.
Sorting: Order the retrieved data by specified columns using the ORDER BY clause
Aggregation: Calculate summary statistics such as counts, averages, or . or ,COUNT,AVG,SUM
Joining data: Join data from multiple tables based on relationships using the JOIN clause
And more
Basic SELECT queries simply extract data, providing various functions to transform and format it before presenting the statement You can apply:
Filtering: Limit results based on conditions using the WHERE clause.
Sorting: Order the retrieved data by specified columns using the ORDER BY clause
Aggregation: Calculate summary statistics such as counts, averages, or . or ,COUNT,AVG,SUM
Joining data: Join data from multiple tables based on relationships using the JOIN clause
And more
12:22 PM - Dec 19, 2023 (UTC)
(E)
In response Amparo Luettgen to his Publication
