Learn how the SQL Server Database Engine implements row compression to help you plan the storage space that you need for your data.

Jan 31, 2018 · How do you know to use row or page compression in SQL Server? This post will provide clarity on row and page compression.

Jan 30, 2024 · Apply row and page data compression, or columnstore and columnstore archival compression, using SQL Server and Azure SQL Database.

Jun 16, 2016 · Row level makes easier compression decisions, like reducing metadata, and removing unused space, like the letter 'Y' stored in a CHAR(1000). The article referenced explains this in much greater detail.

Jun 10, 2024 · This article describes how to enable data compression on an existing table or index in SQL Server by using SQL Server Management Studio or Transact-SQL. To enable data compression when creating a table or index, see the Create a compressed index and Creating a table that uses row compression examples.

Mar 12, 2014 · Row-level compression compresses data at row level by applying algorithms to reduce the size of the data encountered. For example, it will convert a fixed-length CHAR to a VARCHAR.

Feb 11, 2016 · Data compression has been available natively since SQL Server 2014 with row level and column level compression, but this was done by enabling compression at either the page level or row level. In SQL Server 2016 CTP 3.1, we have newly introduced functions for compression by which specific data itself can be compressed.

Apr 3, 2018 · Page level data compression starts with Row level data compression and then uses additional two compressions: prefix and dictionary compressions. Prefix compression removes repeating patterns from the beginning of the values in the column and replaces it with an appropriate reference.

Apr 6, 2020 · Row compression is a good choice for OLTP data, high updates. Page compression is good choice for data having low updates.

Dec 8, 2015 · Data compression in SQL Server both saves and costs resources, and can even save CPU. Understand what's going on, then test it out.