Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance SQL Server, Azure SQL Database, and Azure SQL Managed Instance support row and page compression for rowstore tables and indexes, and support columnstore and columnstore archival compression for columnstore tables and indexes. For ...
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...
1)SQL SERVER下一共有两种压缩类型:Row Compression和Page Compression 2)Row Compression把固定长度的数据列存成可变长度的格式,然后每列取4位(bits)来记录数据的长度,NULL和0除了那4位对数据存储空间不做任何影响。翻译过来是这样,但其实还是不是很懂。然而Page Compression则易懂得多了,前缀压缩和字典压缩技术。先...
All supported versions of SQL Server support thevardecimalstorage format; however, because data compression achieves the same goals, thevardecimalstorage format is deprecated. This feature will be removed in a future version of SQL Server. Avoid using this feature in new development work, and plan ...
sp_estimate_data_compression_savings 支持XML 压缩估计。 备注 压缩, sp_estimate_data_compression_savings 在SQL Server 的每个版本中都不可用。 有关 SQL Server 各个版次支持的功能列表,请参阅 SQL Server 2022 的各个版次及其支持的功能。 若要估计对象的大小(...
Disabling data compression must always succeed. Even if the compressed row fits on the page, which means that it is less than 8060 bytes; SQL Server prevents updates that would not fit on the row when it is uncompressed. When a list of partitions is specified, the compression type can be...
Data compression and vardecimal storage format are only supported on SQL Server Enterprise Edition. Database 'xxx' cannot be started because some of the database functionality is not available in the current edition of SQL Server 问题原因 版本兼容性问题,SQL S...
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 Server query optimizer does not cost the ...
如果在以前具有 "行中的文本" 表选项设置但不再具有text、 ntext或image列类型的表上执行sp_estimate_data_compression_savings存储过程,则会出现此问题。此外,你可能会在 SQL Server 错误日志中收到以下错误消息: <日期时间>Spid14s 死锁监...
當您在先前有「資料列」資料表選項組的資料表上執行 sp_estimate_data_compression_savings 儲存程式,但已不包含 text、 Ntext或 image 欄類型時,就會發生此問題。此外,您可能會在 SQL Server 錯誤記錄中收到下列錯誤訊息: <日期時間>Spi...