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How SQL Defrag Manager provides a better, more eficient and automated approach to identifying and resolving index fragmentation in SQL Server. How to judge the improvements gained by defragmenting your server.
ALTER INDEX __NAME_OF_INDEX__ ON __NAME_OF_TABLE__ REBUILD. or to reorganize use: ALTER INDEX __NAME_OF_INDEX__ ON __NAME_OF_TABLE__ REORGANIZE. Reorganizing should be used at lower (<30%) fragmentations but only rebuilding (which is heavier to the database) cuts the fragmentation down to 0%.
The first step in managing fragmentation is to better understand what tables and indexes are fragmented and then to determine what steps to take for rebuilding indexes. For small databases the normal practice is to use a Maintenance Plan to rebuild indexes across the board for all indexes.
12 sty 2010 · What is Fragmentation? How to detect fragmentation and how to eliminate it? A. Storing data non-contiguously on disk is known as fragmentation. Before learning to eliminate fragmentation, you should have a clear understanding of the types of fragmentation. We can classify fragmentation into two types:
23 mar 2019 · Indexes can be logically fragmented inside a database file, and a database file or log file can be physically fragmented. Indexes become fragmented by some INSERT/UPDATE/DELETE operations, and database files and log files become physically fragmented each time they increase in size.
13 sie 2013 · It's very easy to use. With the contig -a option you can analyze the fragmentation of a specified file with the database online. To defrag the file simply run Contig [FileName]. Needless to say that in order to defrag a database, the database file must be OFFLINE.
8 kwi 2009 · ALTER INDEX { index_name | ALL } ON <object> REORGANIZE WITH LOB_COMPACTION = { ON | OFF } ALTER INDEX ... REORGANIZE. LOB_COMPACTION - Specifies that all pages that contain large object (LOB) data are compacted. LOB data types are image, text, ntext, varchar(max), nvarchar(max), varbinary(max), and xml.
