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Clears all user-defined memory variables.
Use CLEAR MEMORY to release all memory variables (except system memory variables), including those declared PUBLIC and STATIC and those initialized in higher-level routines. CLEAR MEMORY has no effect on system memory variables.
CLEAR MEMORY does not explicitly release objects. However, if the only reference to an object is in a memory variable, releasing the variable with CLEAR MEMORY will in turn release the object.
Issuing RELEASE ALL in the Command window has the same effect as CLEAR MEMORY. However, issuing RELEASE ALL in a program clears only memory variables created at the same program level as the RELEASE ALL statement, and has no effect on higher-level, public, or static variables. CLEAR MEMORY, whether issued in a program or in the Command window, always has the same effect, releasing all variables.
To clear only selected memory variables, use RELEASE.