类似于按RANGE分区,区别在于LIST分区是基于列值匹配一个离散值集合中的某个值来进行选择。 PARTITION BY LIST (province_id) ( PARTITION p0 VALUES IN (1,2,3,4,5,6,7,8), PARTITION p1 VALUES IN (9,10,11,12,16,21), PARTITION p2 VALUES IN (13,14,15,19), PARTITION p3 VALUES IN (17,18...
PARTITION BY RANGE (year(c3)) (PARTITION p0 VALUES LESS THAN (1995), PARTITION p1 VALUES LESS THAN (1996) , PARTITION p2 VALUES LESS THAN (1997) , PARTITION p3 VALUES LESS THAN (1998) , PARTITION p4 VALUES LESS THAN (1999) , PARTITION p5 VALUES LESS THAN (2000) , PARTITION p6 VALUE...
1mysql>createtableusers_part2(3"id"int(10) unsignedNOTNULL,4"name"varchar(100)DEFAULTNULL,5"birth"datetime6) ENGINE=InnoDBDEFAULTCHARSET=utf87PARTITIONBYRANGE (year(birth)) (8PARTITION p0VALUESLESS THAN (1981),9PARTITION p1VALUESLESS THAN (1982),10PARTITION p2VALUESLESS THAN (1983),11PARTITI...
Now i inserted 10 rows in table having PartitionID 1 to 11. According to range partition first four rows (having PartitionID 1 to 4 ) should go in partition p0 . To check this i did a test, i fired following query from MySql command prompt Query: ...
MySQL支持 RANGE,LIST,HASH,KEY 分区类型,其中以RANGE最为常用: CREATE TABLE foo ( id INT NOT NULL AUTO_INCREMENT, created DATETIME, PRIMARY KEY( id, created ) ) ENGINE=INNODB PARTITION BY RANGE (TO_DAYS(created)) ( PARTITION foo_1 VALUES LESS THAN ( TO_DAYS('2009-01-01') ), ...
KEY:类似于RANGE分区,但使用了更复杂的算法 分区类型示例 RANGE分区 RANGE分区根据列的连续范围进行分区。以下是一个示例: AI检测代码解析 CREATETABLEsales(idINT,nameVARCHAR(50),dateDATE)PARTITIONBYRANGE(YEAR(date))(PARTITIONp0VALUESLESS THAN(2010),PARTITIONp1VALUESLESS THAN(2020),PARTITIONp2VALUESLESS THAN...
mysql分区按PARTITIONBYRANGE（TO_DAYS（startTime））to_days()Given a date date, returns a day number (the number of days since year 0).给定⼀个date ⽇期,返回天数 Create Table: CREATE TABLE `ClientActionTrack` (`sn` bigint(20) NOT NULL AUTO_INCREMENT,`clientSn` int(11) DEFAULT NULL...
Unable to create partition by range for float data type column float(12,9) in mysql server 5.6 CREATE TABLE `tbl_geodata1` ( `id` int(11) NOT NULL AUTO_INCREMENT, `geo_street` varchar(150) CHARACTER SET latin1 DEFAULT NULL,
窗口函数OVER(PARTITION BY)详细用法——语法+函数+开窗范围ROWS和RANGE - 一、函数写法函数名(参数) OVER (PARTITION BY子句 ORDER BY子句 ROWS/RANGE子句)由三部分组成:函数名:如sum、max、min、count、avg等聚合函数以及lead、lag行比较函数等;over: 关键字,表示前
一、确认你是用的MySQL支持分区 SHOW PLUGINS -- 查看 partition 的 status = ACTIVE 二、由于需要按照日期创建分期,使用字段 created_at 按照指定日期创建分区: 创建分区命令: -- 添加分区 ALTER TABLE partition_test PARTITION BY RANGE(TO_DAYS(created_at)) ( PARTITION p20230809 VALUES LESS THAN (TO_DAY...