partitionbyrange (HIREDATE) ( partition P_HIREDATE_1valuesless than (TO_DATE('1981-01-01 00:00:00','SYYYY-MM-DD HH24:MI:SS','NLS_CALENDAR=GREGORIAN')) tablespace TBS_CLPC_META pctfree10initrans1maxtrans255, partition P_HIREDATE_2valuesless than (TO_DATE('1982-01-01 00:00:00',...
partitionby(v1.stuname)rightjoinv2onv1.subject=v2.subject) --v4就是对学科稠密化后的表,如图2所示selectv4.stuname , v4.subject , NVL(v4.score,0),v3.dateyearfromv4 partitionby(stuname,subject) --注意这里rightjoinv3 --最后在对v4进行年份的稠密,onv4.dateyear=v3.dateyear; 这样就大功...
DATE类型:建立的分区表说明2003-1-1之前的数据放入P01分区中,之后的数据每天一个分区 代码语言:javascript 代码运行次数:0 运行 AI代码解释 CREATE TABLE tablename (hid number,hdate date) PARTITION BY RANGE(hdate) INTERVAL (NUMTODSINTERVAL(1, 'DAY')) ( PARTITION p01 VALUES LESS THAN (to_date('200...
--按月创建分区表 create table test_part ( ID NUMBER(20) not null, REMARK VARCHAR2(1000), create_time DATE ) PARTITION BY RANGE (CREATE_TIME) INTERVAL (numtoyminterval(1, 'month')) (partition part_t01 values less than(to_date('2018-11-01', 'yyyy-mm-dd'))); --创建主键 alter ta...
create_time DATE ) PARTITION BY RANGE (CREATE_TIME) INTERVAL (numtoyminterval(1, 'month')) (partition part_t01 values less than(to_date('2018-11-01', 'yyyy-mm-dd'))); --创建主键 alter table test_part add constraint test_part_pk primary key (ID) using INDEX; ...
)--创建散列分区,分区键为示例表(hash_example)中的 done_date 字段partitionbyhash (done_date) ( partition part_1, partition part_2 ); select*fromuser_tab_partitionswheretable_name='HASH_EXAMPLE'; 1. 2. 3. 4. 5. 6. 7. 8.
PARTITION BY RANGE(birthday) INTERVAL (NUMTOYMINTERVAL(1,'month')) STORE IN (tbs01,tbs02,tbs03) ( PARTITION partition201401 VALUES LESS THAN(to_date('2014-02-01:00:00:00','yyyy-mm-dd hh24:mi:ss')) ); (3.3)按”天(日)“自动创建分区(关键字:NUMTODSINTERVAL) ...
"C" DATE, "D" NUMBER GENERATED ALWAYS AS (TO_NUMBER(TO_CHAR("C",'dd'))) VIRTUAL, CONSTRAINT "T_RANGE_10_PK" UNIQUE (A) )PARTITION BY RANGE(D)( ... ); CREATE TABLE T_RANGE_1 ( A INT, ...
--按年创建分区表createtabletest_part(IDNUMBER(20)notnull,REMARKVARCHAR2(1000),create_timeDATE)tablespaceUSERSPARTITIONBYRANGE(CREATE_TIME)INTERVAL(numtoyminterval(1,'month'))(partitionpart_t01valueslessthan(to_date('2020-08-01','yyyy-mm-dd')));--添加索引altertabl...
9 PARTITION BY RANGE (ORDER_DATE) 10 ( 11 PARTITION p1 VALUES LESS THAN (TO_DATE('2014-10-1', 'yyyy-mm-dd')) , 12 PARTITION p2 VALUES LESS THAN (TO_DATE('2015-10-1', 'yyyy-mm-dd')) , 13 PARTITION p3 VALUES LESS THAN (TO_DATE('2016-10-1', 'yyyy-mm-dd')) , ...