Data Page LSN and Transaction Log LSN


Data Pages

The SQL Server database page size is 8 KB. Each page contains a header with fields such as Page Number, Object Id, LSN, Index Id, Torn bits, and Types. The actual row data is located on the remaining portion of the page. The internal database structures track the allocation state of the data pages in the database.

Data pages are also referred to as pages.

The Microsoft SQL Server 2000 transaction log operates logically as if it is a serial string of log records. Each log record is identified by a log sequence number (LSN). Each new log record is written to the logical end of the log with an LSN higher than the LSN of the record before it.

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