-- 创建分区函数CREATEPARTITIONFUNCTIONpf_PartitionByDate(DATETIME)ASRANGERIGHTFORVALUES('2023-01-01','2023-07-01','2023-10-01');-- 创建分区方案CREATEPARTITIONSCHEMAps_PartitionByDateASPARTITIONpf_PartitionByDateALLTO([PRIMARY]);-- 创建分区表CREATETABLEdbo.MarketingData(IDINTPRIMARYKEY,CampaignName ...
INSERT [dbo].[Orders] VALUES (216090, CAST(N'1826-12-19'AS Date), N'Edward', N'Phoenix',4713.8900) GO INSERT [dbo].[Orders] VALUES (508220, CAST(N'1826-12-09'AS Date), N'Aria', N'San Francisco',9832.7200) GO INSERT [dbo].[Orders] VALUES (271510, CAST(N'1902-09-03'AS Da...
SQL PARTITION BY的基础应用如上一篇所示: 1.例子见前一章,目的是有分组的,只显示OrderAmount最高的(即每组只显示一列) 2.再建一个表来存储 CREATETABLE[dbo].[MaxOrders]([orderid][int]NULL,[Orderdate][date]NULL,[CustomerName][varchar](100)NULL,[Customercity][varchar](100)NULL,[MaxOrderamount]...
CREATE TABLE my_partitioned_table ( id INT, created_date DATE, -- 其他列... ) PARTITION BY RANGE (MONTH(created_date)) ( PARTITION p1 VALUES LESS THAN (2), PARTITION p2 VALUES LESS THAN (3), PARTITION p3 VALUES LESS THAN (4), PARTITION p4 VALUES LESS THAN (5), PARTITION p5 VALU...
WITHRankedOrdersAS(SELECTorder_id,customer_id,order_date,total_amount,ROW_NUMBER()OVER(PARTITIONBYcustomer_idORDERBYorder_date)ASrow_numFROMorders)SELECTcustomer_id,order_id,order_date,total_amountFROMRankedOrdersWHERErow_num<=2; 这些示例只是SQL数据分析的入门,你可以根据具体的需求进一步深入研究和分析...
关键字partition by range 代码语言:javascript 代码运行次数:0 运行 AI代码解释 create table range_part_tab (seq number,deal_date date,unit_code number,remark varchar2(100)) partition by range (deal_date) ( partition p1 values less than (TO_DATE('2018-11-01','YYYY-MM-DD')), partition p2...
在PL/SQL 中实现分区表和分区索引,可以通过以下步骤:创建分区表:在创建表的时候,使用 PARTITION BY 子句指定分区方式,可以按照范围、列表或哈希等方式进行分区。CREATE TABLE sales ( sale_id NUMBER, sale_date DATE, amount NUMBER ) PARTITION BY RANGE (sale_date) ( PARTITION sales_q1 VALUES LESS THAN (...
create table pt_pruning ( id int, r1 int, r2 int, log_date date) partition by range(to_days(log_date)) ( PARTITION p_01 VALUES LESS THAN (to_days('2020-02-01')) ENGINE = InnoDB, PARTITION p_02 VALUES LESS THAN (to_days('2020-03-0...
Create a partitioned table on multiple filegroups with Transact-SQL Partition a table with SSMS Show 3 more Applies to: SQL Server Azure SQL Database Azure SQL Managed Instance You can create apartitioned table or indexin SQL Server, Azure SQL Database, and Azure SQL Managed Instance by usi...
CREATE TABLE postgres=# insert into t_native_range values(1,'2016-09-01',1); INSERT01 list 分区表 表格通过明确的键值进行分区。 创建主分区 postgres=# create table t_native_list(f1 bigserial not null,f2 text, f3 integer,f4 date) partition by list( f2 ) distribute by shard(f1); ...