TableDataCompressionOption 型別公開下列成員。方法展開資料表 名稱說明 Accept Accepts a visit from the specified visitor. (覆寫 TSqlFragment.Accept(TSqlFragmentVisitor)。) AcceptChildren Accepts a visit for the Children from the specified visitor. (覆寫 TableOption.AcceptChildren(TSqlFragmentVisitor)...
The anonymous history table name has the following format:MSSQL_TemporalHistoryFor_<current_temporal_table_object_id>_[suffix]. Suffix is optional and is added only if the first part of the table name isn't unique. The history table is created as a rowstore table. PAGE compression is appl...
evaluate how they’re used, and compress (or not) in accordance with the findings. To automate the next step, I adjust the script to match T-SQL’s syntax for altering objects and compressing them (using tables as an example withpage compression), by taking the properties...
命名空间: Microsoft.SqlServer.TransactSql.ScriptDom 程序集: Microsoft.SqlServer.TransactSql.ScriptDom(在 Microsoft.SqlServer.TransactSql.ScriptDom.dll 中)语法C# 复制 [SerializableAttribute] public class TableDataCompressionOption : TableOption TableDataCompressionOption 类型公开以下成员。
本文介绍Oracle表压缩(Table Compression)技术概述及其历史演变 在Oracle数据库中,普通表(即堆表)可以进行压缩技术来提高数据库性能和节省存储空间。 优缺点 表压缩(Table Compression)的好处和缺点主要如下: 代码语言:javascript 复制 好处:节省磁盘空间、减少buffer cache的使用、减少I/O、某些情况下还能加快查询执行时...
命名空間:Microsoft.SqlServer.TransactSql.ScriptDom 組件:Microsoft.SqlServer.TransactSql.ScriptDom (在 Microsoft.SqlServer.TransactSql.ScriptDom.dll 中) 語法 C#複製 publicTableDataCompressionOption() 請參閱 參考 TableDataCompressionOption 類別 Microsoft.SqlServer.TransactSql.ScriptDom 命名空間...
VardecimalStorageFormatEnabled property class of Table XmlCompressionOptions XmlCompressionOptions relationship class of Table Applies to ProductVersions Microsoft.SQLServer.DacFx140.3881.1, 150.18208.0, 160.2004021.0, 161.6374.0, 162.2.111 In this article Definition Properties Applies to...
15.9.1.6 Compression for OLTP Workloads 15.9.1.7 SQL Compression Syntax Warnings and Errors This section describesInnoDBtable compression, which is supported withInnoDBtables that reside infile_per_tabletablespaces orgeneral tablespaces. Table compression is enabled using theROW_FORMAT=COMPRESSEDattribute wit...
作为SQL Server 2016(CTP3.x)的另一个新特性,Temporal Table(历史表)记录了表历史上任何时间点所有的数据改动。Temporal Table其实早在ANSI SQL 2011就提出了,而SAP HANA, DB2和Oracle早已在它们的产品中加入/实现了这一特性。所以说微软其实是落后了几个竞争对手。既然在CTP3.0中加入了,相信RTM也肯定有这个特性...
SQL CREATEEXTERNALDATASOURCEmydatasource_orcWITH(TYPE= HADOOP, LOCATION ='hdfs://xxx.xxx.xxx.xxx:8020')CREATEEXTERNALFILEFORMATmyfileformat_orcWITH(FORMAT= ORC, COMPRESSION ='org.apache.hadoop.io.compress.SnappyCodec') ;CREATEEXTERNALTABLEClickStream_orc (urlvarchar(50), event_datedate, user_ip...