What do I need to apply for a visa credit card?

I’m currently employed. I only have a savings account, but I don’t have a checking account yet. I want to apply for a credit card at my local bank, but i don’t know what I’m going to have to know and need first. I want to be prepared. Thanks for the answers.

how do I obtain an online credit card. I dont have one from a local bank?

I need to purchase some programmes online but I do not have a credit card, what do I do