Jan 28, 2025 · In SQL Server, a buffer is an 8-KB page in memory, the same size as a data or index page. Thus, the buffer cache is divided into 8-KB pages. A page remains in the buffer cache until the …

To help make the distinction, think in terms of where the command is executed. If you enter something to be executed by the database server, then it is buffered. If it's a command local to SQL*Plus, then it …

But what is a Buffer? A buffer is a place in memory that holds pages from a database. It could be anything from index, IAM, data, PFS, etc. These pages are in the buffer pool (hence a pool of buffers …

Nov 21, 2022 · The Buffer Pool, sometimes referred to as the Buffer Cache, is a portion of SQL Server’s memory set aside to store a copy of disk-based database pages while they’re in use.

Dec 5, 2025 · The main goal of buffer management is to reduce disk access, improve response time, and keep the database running efficiently even when many users are working at once.

Invokes an operating system text editor on the contents of the specified file or on the contents of the SQL buffer. To edit the buffer contents, omit the file name.

Aug 27, 2024 · Indicates the percentage of pages found in the buffer cache without having to read from disk. The ratio is the total number of cache hits divided by the total number of cache lookups over the …

Mar 28, 2025 · An essential metric for understanding the efficiency of SQL Server’s use of memory is the Buffer Cache Hit Ratio. This ratio indicates the percentage of pages found in the buffer cache …

Sep 16, 2025 · It forces the evaluation of any scalar cell values, but leaves non-scalar values (records, lists, tables, and so on) as-is. table: The table to buffer in memory. BufferMode: The buffer mode that …

Oct 10, 2024 · The buffer cache, also known as the buffer pool, is an essential component of SQL Server. It retains in-memory copies of disk-based data pages, thus reducing the need to repeatedly …