partition hash single: partition hash iterator: partition hash inlist partition hash all partition hash subquery partition hash join-filter 比range少了partition range or和partition range multi-column list分区 : partition list single partition list iterator partition list inlist partition list all partitio...
'202108');---2、partition list inlist 不连续分区扫描EXPLAINPLANFORselect*fromMY_TABLEwheremonth_part='202107'ormonth_part='202108';--3、partition list iterator 连续分区扫描EXPLAINPLANFORselect*fromMY_TABLEwheremonth_part<='202107';--4、partition list single 单个分区扫描EXPLAINPLAN...
--1 PARTITION LIST SINGLEEXPLAINPLANFORselect*fromMY_TABLE partition(month_part_202107);--2 PARTITION LIST SINGLEEXPLAINPLANFORselect*fromMY_TABLEwheremonth_part='202107';--3 PARTITION LIST ALLEXPLAINPLANFORselect*fromMY_TABLEwheremonth_part=202107;--4 PARTITION LIST ALLEXPLAINPLANFORselect*fromMY_...
oraclelistpartition列表分区（一）oraclelistpartition列表分区（⼀）在上⼏篇⽂章中学习了range partition及hash partition的相关知识;本⽂测试list partition的⽤法:内容包括:1,创建语法 2,操作维护 3,操作限制 ---1,创建语法 ---最简朴创建list partition语法 SQL> create table t_list_partition(a int,...
create table t_operate_log ( id number(7), type varchar2(10), op_time date ) PARTITION BY list(type) ( partition t_operate_log_add_del values('add','delete') TABLESPACE LOG, partition t_operate_log_edit_query values('edit','query') TABLESPACE LOG ) 2.使用下面sql可以查看分区列表和...
, last_name “Name”, LISTAGG(last_name, ‘; ‘) WITHIN GROUP (ORDER BY hire_date, last_name) OVER (PARTITION BY department_id) as “Emp_list” FROM employees WHERE hire_date < ’01-SEP-2003′ ORDER BY “Dept”, “Date”, “Name”; Dept Date Name Emp_list —–——— 30 07-...
partition t_operate_log_3 values less than (300) ) 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 创建表成功后,我们插入3条数据,id分别是1,100,200,sql如下: insert into t_operate_log values(1, '1', sysdate); insert into t_operate_log values(100, '1', sysdate); ...
Description of “Figure 2-1 A View of Partitioned Tables” Note: All partitions of a partitioned object must reside in tablespaces of a single block size. See Also: Oracle Database Concepts for more information about multiple block sizes ...
• If you specify the PARTITION BY SYSTEM clause, but don't definepartitions, a single partition is created with the name in the format of "SYS_Pn". • If you specify PARTITION BY SYSTEM PARTITIONS n clause, the database creates "n" partitions with the name in the format of "SYS_...
The following single-set aggregate example lists all of the employees in Department 30 in the hr.employees table, ordered by hire date and last name: SELECT LISTAGG(lastname, '; ') WITHIN GROUP (ORDER BY hiredate, lastname) "Emplist", ...