What is an Internal Table in ABAP?

An internal table in ABAP is a data structure specifically designed to hold multiple records in memory. It serves as a temporary storage solution that enables programmers to manipulate collections of data efficiently while the program is running. Internal tables allow for operations such as adding, deleting, and modifying records, making them essential for data processing tasks, especially when working with large datasets or when performing bulk operations.

Internal tables are very flexible and can be declared with different types of structures, which means they can hold various types of data depending on the defined structure. They support various operations, including sorting and filtering data. The use of internal tables is critical in ABAP programming as it enhances performance and allows for effective memory management while working with data sets during program execution.