There are many thousands of companies that use encrypted databases. All banks use them.
they used forms
Companies use databases for a myriad purposes: Accounting Payroll Time Sheets Asset Management Human Resources Security And many more purposes, depending on the organization's use of technology.
Databases store information. Some use database as an inventory. Large companies and stores use databases so they know what they have in stock and what they need to order.
They say they don't, but they sell it!
Businesses can use databases for storing information. Databases can e used to keep record of sales and finance. Companies can keep a website, containing and advertising details about the business, company or organisation.
If you are using an encrypted channel, then at some point everyone uses symmetric encryption. It is fast (compared to asymmetric).The first part of an encrypted conversation will probably use asymmetric encryption to provide the shared private key that is later on used for the bulk part of data conversations on an encrypted channel.
Databases are used by everyone, but mostly for big companies to store vast amounts of information on.
A digital certificate confirms the information has come from the source it's claimed to be, and that the site is encrypted for transactions to be exchanged.
No. It is a spreadsheet application. You can do simple databases in it, but it is not designed to create complex databases like relational databases. To do that you would use an actual database application.
There are dozens, if not hundreds: government databases (IRS, Social Security, Department of Motor Vehicles, etc.), business databases (credit card companies, airline frequent-flier memberships, etc.), financial (banks, loan companies), healthcare (doctor's offices, insurance companies) and many more.
Many companies use databases to keep track of their stock, or their employees. A database is a collection of information, like names and addresses, or phone numbers. Police Departments have databases of crimes committed and criminals caught.
To see who is giving them money. They also need databases to see who needs there money back to pay for an accident.