Tcs technical - telephonic round qus
1. About project. - have u created tables.? 
2. In ur table u have few null values, but u have a requirement tat u must define not null constraint..  How Wil u manage. 
3. What is sequence. 
4.if sequnce is running til 11 and if u get error or some issue in db and program throwed an error and came out..  Now what will be d current value of squence
5. If I want to continue the sequnce from 12 want should I do
6.exceptions based qus.