Just update your Database as usual and then check stock where Split or bonus had come.....obvisoouly your chart picture would have been distorted. Software doesn't understand what is Split or bonus so right Click on the Price bar before the Split and select Price Settings and from there top left hand corner you will see option adjust Split. Bydefault you will get the ratio Say Face Value of Rs 10 splitted to FV of Rs 5 so the ratio is 1:1. Altenratively say company has announced Bonus in 1:1 ratio so for every one share held previous will now result in holding of 2 shares.
So key in 2 in left hand side and 1 in previous holding and before clicking on done button...there is option to test it.....just click on test and see what ratio u r getting. If it is in fraction say 1.9345 or so u r okay and go with ur selection of 2 for 1. That's it....it is so simple.:clapping:
P.S.: Always have backup of your old data first.