acumatica - How to refresh the timestamp information of a specific Cache? -

i went in situation need reload information database specific cache re-calculation.

i tried following. after able read new information db, still save giving me pxlockviolationexception.

 this.<view>.cache.clear();  this.<view>.cache.clearquerycache();  this.<view>.select(); 

please assist.

i used

this.base.selecttimestamp();

but reload timestamps? need cache information updated. knows it?