Free

What Does Free Mean?

Free is an ABAP programming keyword used to reset the values associated with an object. This keyword is capable of deleting the following:

Advertisements
  • An internal table used in ABAP programs
  • A data cluster in ABAP memory
  • ABAP memory
  • An external object used in object linking and embedding

Unlike other ABAP keywords used for resetting values, Free also releases all resources connected with the object, mostly memory. It is commonly used instead of other keywords or a combination of keywords for resetting objects and releasing associated memory, especially if a large number of objects are involved.

Techopedia Explains Free

The syntax for using the keyword FREE is as follows:

FREE <object>

Features of the Free keyword include the following:

  • FREE may be directly used to initialize an internal table, like keywords REFRESH and CLEAR. However, FREE also releases all memory space associated with the internal table, including the initial memory requirement.
  • After the free <object> statement, the data object may be addressed, with the exception of external objects used in object linking and embedding. However, this can involve reallocating data object resources.
  • In an external object is used in object linking and embedding, FREE does not allow further object processing.
  • If the addition of variant "Memory ID" is not used, FREE can delete all of the contents in ABAP memory. With the usage of memory ID, only the contents associated with unique ID are deleted from ABAP memory.

The runtime for executing the FREE statement is approximately five standardized microseconds.

Advertisements

Related Terms

Margaret Rouse

Margaret Rouse is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical, business audience. Over the past twenty years her explanations have appeared on TechTarget websites and she's been cited as an authority in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine and Discovery Magazine.Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages. If you have a suggestion for a new definition or how to improve a technical explanation, please email Margaret or contact her…