The article focuses on the data compression feature offered by SQL Server 2008. It states that data compression enables users to store tables, partitions and indexes in reduced size as well as enhance performance in carrying out data warehousing operations. It reveals that SQL Server 2008 utilizes...
SQL Server Recovery is writing a checkpointindatabase'xxx'(9).This is an informational message only.No user action is required.Database'xxx'cannot be startedinthiseditionofSQLServer because part or allofobject'[$Name]'is enabledwithdata compression or vardecimal storage format.Data compression and...
SQL Server 2008 introduces a new feature called "Database Mirroring Log Compression". With SQL Server 2008, the outgoing log stream from the principal to the mirror is compressed, thereby minimizing the network bandwidth used by database mirroring. In a network constrained for bandwidth, compressing...
SQL Server supports row and page compression on tables, indexes and partitions. This can lead to reduced I/O and better performance. However, it can also result in additional CPU usage in some cases, outweighing the benefits of data compression. SQL Serv
In my previous blog, I had mentioned that unicode compression will be available as part of next SQL Server release named SQL 2008R2. You can down load the CTP2 version https://www.microsoft.com/sqlserver/2008/en/us/r2.aspx to play with it. This is a new exciting addition to the dat...
For more information about data compression, see Data Compression in the MSDN library. You can configure compression using the preceding Transact-SQL statements or from SQL Server Management Studio using the Data Compression wizard on either tables or indexes. You...
Tables that implemented the vardecimal storage format in SQL Server 2005 (9.x), retain that setting when upgraded. You can apply row compression to a table that has the vardecimal storage format. However, because row compression is a superset of the vardecimal storage format, there's no reason...
them. Nonclustered indexes do not inherit the compression property of the table, but clustered indexes created on a heap inherit the compression state of the heap. Data compression applies only at the source, so when you export data from a...
4)SORT_IN_TEMPDB选项推荐射程ON。如果设置为OFF就意味着索引数据的排序是在用户数据库中进行的,设想下如果此时别的表也在进行DML操作,而重建索引也要向SQL Server请求区的分配,这样容易造成最后索引的区的物理连续性差的问题。另一个关于SORT_IN_TEMPDB为ON比OFF好的地方是,数据排序在TEMPDB里面以为着如果TEMODB在...
For some locales, the implementation of SCSU compression in SQL Server can save up to 50 percent in storage space.Supported data typesUnicode compression supports the fixed-length nchar(n) and nvarchar(n) data types. Data values that are stored off row or in nvarchar(max) columns aren'...