In SQL, a SELECT query is used to retrieve data from one or more tables. The SELECT statement is the most commonly used SQL statement and it is used to query a database and retrieve data based on certain criteria or conditions.
A SELECT query specifies which columns to retrieve from one or more tables, as well as any conditions that the retrieved data must meet. It can also be used to sort and group data, and to perform calculations on data using aggregate functions like COUNT, SUM, and AVG.
12 мар 2023
