Description: The FROM clause is a fundamental component in SQL queries, as it specifies the table or tables from which data will be retrieved. This clause allows the user to explicitly indicate the source of information they wish to query, which is essential for the correct execution of a query. In SQL, the basic structure of a SELECT query includes the FROM clause, which is placed after the SELECT keyword and before any other clauses, such as WHERE or ORDER BY. The FROM clause can include one or more tables and can also use aliases to simplify references to these tables in the query. Additionally, it is possible to perform joins between multiple tables within the FROM clause, allowing for the combination of related data from different sources. This flexibility makes the FROM clause crucial for data manipulation and analysis in relational databases, facilitating the retrieval of accurate and relevant information from large volumes of data.
