Learn what a transaction is in SQL, what are its properties, how to start and end a transaction, and how to handle errors and conflicts. Plus, see some examples of transactions in SQL.

The transaction isolation level defines what types of concurrent reads are observable from within a transaction, and the SQL standard defines at least four types (Oracle supports a couple ...

SQL Server transaction logs A transaction log is a sequential record of all changes made to the database while the actual data is contained in a separate file.

This statement starts a new transaction inside of TiDB. It is similar to the statements `START TRANSACTION` and `SET autocommit=0`. In the absence of a `BEGIN` statement, every statement will by ...

If there is already a transaction in progress when the command is issued. In SQL99 this statement can specify two other properties of the new transaction: whether the transaction is read-only and the ...

The next version of Microsoft’s relational database management system (RDMS) promises to bring immense performance gains to online transactional processing systems. SQL Server 2014 will come ...