Things you need to attention when you use DB cache

This is attention thing when you use mixture of How to change data unilaterally, How to use request response method and blocked method that apply to DBMS first and How to access a data as non-exclusively.

If someone uses How to change data unilaterally, Proud.IDbCacheClientDelegate2.OnAccessError is possibly calling back during How to use request response method and blocked method that apply to DBMS first or How to access a data as non-exclusively is running.