You need to implement a transaction-level consistency in relational database management system
Question: Select a commercial or open source relational database management system of your choice and outline the locking mechanisms inherent in the system to maintain transaction-level consistency.
Outline one backup method you could use for the relational database management system you selected above. Explain how you would implement it.
Please keep it short and simple and no copy and paste or at least help me get started and also describe how you would implement it.