The Log Writer (LGWR) process is responsible for writing redo log entries from the redo log buffer to the redo log files, ensuring data is recoverable in case of failure.
A table is a fundamental structure in an Oracle Database used to store user data in rows and columns, representing entities and their attributes.
The Oracle Data Dictionary contains metadata, such as information about database objects, users, and permissions, which is used to manage and query the database efficiently.
Oracle Enterprise Manager (OEM) is a comprehensive tool for managing and monitoring Oracle Databases, providing administrators with a graphical interface to perform a wide range of tasks.
An Oracle Database instance consists of memory structures and background processes that handle database operations, such as querying and transaction management, in memory.