In Oracle, determining the size of a table is crucial for managing storage, optimizing performance, and ensuring data integrity. To check the size of a table, the SELECT statement can be utilized in conjunction with the SUM function and the data dictionary views.
The SELECT statement allows you to retrieve specific data from the database, while the SUM function calculates the sum of values in a specified column. Data dictionary views, such as USER_TABLES and DBA_TABLES, provide information about the database’s tables, including their size.