Automation testing using QTP which is functions created in Vbscript

[Mr. Anand]

Automation testing using QTP has always been talked upon the most in
the testing industry. There are numerous features available within
this very toolset, but most of us might not be aware of this very
feature which has been discussed in this very articles on automation
testing using QTP which is functions created in Vbscript , and is very
useful in code customization to meet our automation testing
requirements , as it reduces the script maintenance effort..

1) How to add a constant number in a datatable?
This is more to do with MS excel then QTP!! but useful to know because
at times it becomes frustrating to the novices.
Just append ' to the number, this trick somehow is related to the
simple concept applied in excel, however that we can deal separately.
Ex: if you wish to enter 1234567 in datatable then write it as
'1234567

QTP Reusable codes :
http://www.articlesontesting.com/2011/02/qtp-reusable-functions-codes-5.html