The SYS(1104) clears memory buffers that VFP uses to access and process data. It's recomended to use it after processing large tables. Overusing it will certanly affect your application performance because it takes time to flush buffers and re-read data for open tables.

>I am following a thread on a problem with the SUM command in VFP 7. One note by Microsoft is that this behavior will be less likely to occur if the sys(1104) function is used.
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>I have not previously used this function and I would like to be fully aware of any potential repurcussions of using this function before implementing. One primary question I have: What memory is cleared? Will this lose memory variables, etc.?
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>Also I have a procedural question: Would it be good programming practice to add this throughout the application, for instance in the Release method of all forms? Refresh method?
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