C:\SQLHOLS\Partitioning\Solution\Partition Processing 文件夹中的 Partition Processing.ssmssln 解决方案中。 1.新建 SQL Server 脚本项目 (1)从开始->所有程序菜单中的 Microsoft SQL Server 2008 程序组中启动SQL Server Management Studio。 (
ALTERPARTITIONSCHEMEYEARPS NEXT USED YEARFG6; --更改分区函数 ALTERPARTITIONFUNCTIONYEARPF() SPLITRANGE('01/01/2005') --现在我们可以看一下我们刚才插入的行都分布在哪个Partition? SELECT*,$PARTITION.YEARPF(DUEDATE)FROMPARTITIONEDORDERS --我们可以看一下我们现在PARTITIONEDORDERS表的数据存储在哪此partiti...
INSERT INTO PARTITIONEDORDERS VALUES(@DT) SET @DT=dateadd(yy,1,@DT) END -- 现在我们可以看一下我们刚才插入的行都分布在哪个Partition SELECT*, $PARTITION.YEARPF(DUEDATE) FROM --我们可以看一下我们现在PARTITIONEDORDERS表的数据存储在哪此partition中,以及在这些分区中数据量的分布 SELECT* FROM SYS....
SQL Server 允许多个线程并行执行查询。我们可以高效地从分区表中查询数据。 -- 查询数据,利用并行处理SELECTNameFROMMyPartitionedTableWHEREID<3000OPTION(MAXDOP=4);-- 设置最大并行度为4 1. 2. 3. 4. 5. 这里的查询语句将从MyPartitionedTable表中选择 ID 小于 3000 的记录。OPTION (MAXDOP = 4)指定该...
以下是SQL Server中分区的一些常见用法：1、创建分区表：在创建分区表时，需要定义分区的数量和每个分区包含的列。以下是一个创建分区表的示例：sql CREATE TABLE PartitionedTable (Column1 INT,Column2 VARCHAR(50),...)WITH (DATA_COMPRESSION = PAGE)ON PartitionScheme (PartitionColumn) = (PARTITION_Scheme1 ...
SQL Server, Azure SQL Database, and Azure SQL Managed Instance support table and index partitioning. The data of partitioned tables and indexes is divided into units that may be spread across more than one filegroup in a database or stored in a single filegroup. When multiple files exist i...
If you enable partition switching on SQL Server 2008 R2 through the current version, you might also need split and merge operations in near future. Before executing a split or merge operation on a replicated or CDC enabled table ensure th...
SQL Server, Azure SQL Database, and Azure SQL Managed Instance support table and index partitioning. The data of partitioned tables and indexes is divided into units that may be spread across more than one filegroup in a database or stored in a single filegroup. When multiple files exist in...
CONTROL SERVER or ALTER ANY DATABASE permission on the server of the database in which the partition function and partition scheme are being created. Create a partitioned table on one filegroup using Transact-SQL If you don't need to independently perform backup and restore operations on filegro...
SQL Server Azure SQL 数据库 Azure SQL 托管实例 Azure Synapse Analytics Microsoft Fabric SQL 数据库 可以使用Partitioned Tables and Indexes所提供的存储算法来存储数据。 分区可以使大型表和索引更易于管理并且更灵活。 索引和表分区 通过该功能可以将索引和表数据分散到各个分区中的多个文件组。 分区函数...