How to perform a query operation in SQL Server?

In SQL Server, performing a query operation typically involves using the SELECT statement. For example, to retrieve all data from a table named “customers,” you can use the following query:

SELECT * FROM customers;

This will return all the data in the table. If you want to only return specific columns, you can specify the column names in the SELECT statement, for example:

SELECT customer_name, customer_address FROM customers;

To filter results by adding conditions, you can use the WHERE clause in a SELECT statement, for example:

SELECT * FROM customers WHERE customer_id = 1;

In addition to the basic SELECT statement, SQL Server also offers many other features such as aggregate functions, JOIN operations, subqueries, etc., allowing users to execute query operations based on specific requirements.