Albus Dumbledore- Dumbledore means bumblebee, which I suppose. would fit... Draco Malfoy- Draco meaning dragon or refering to a cruel Athenian lawmaker. The mal in Malfoy meaning evil or bad, and foy, more commonly know as foi in french, means faith, so Malfoy would mean Badfaith.
Transactions (Transact-SQL) A transaction is a single unit of work. If a transaction is successful, all of the data modifications made during the transaction are committed and become a permanent part of the database. If a transaction encounters errors and must be canceled or rolled back, then all of the data modifications are erased.
SQL can delete data from SQL database tables. Finally SQL can modify the database structure itself  create/modify/delete tables and other database objects. SQL uses set of commands to manipulate the data in relational databases. For example SQL INSERT is used to insert data in database tables.