oracle和postgresql添加一到一万的范围分区表,给出语法规则和具体例子
时间: 2023-03-26 08:01:24 浏览: 101
oracle数据库表分区实例
好的,以下是语法规则和具体例子:
Oracle:
语法规则:
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
...
)
PARTITION BY RANGE(column_name) (
PARTITION partition_name1 VALUES LESS THAN (value1),
PARTITION partition_name2 VALUES LESS THAN (value2),
...
);
具体例子:
CREATE TABLE sales (
sale_id NUMBER(10),
sale_date DATE,
sale_amount NUMBER(10,2)
)
PARTITION BY RANGE(sale_date) (
PARTITION sales_q1_2019 VALUES LESS THAN (TO_DATE('01-APR-2019','DD-MON-YYYY')),
PARTITION sales_q2_2019 VALUES LESS THAN (TO_DATE('01-JUL-2019','DD-MON-YYYY')),
PARTITION sales_q3_2019 VALUES LESS THAN (TO_DATE('01-OCT-2019','DD-MON-YYYY')),
PARTITION sales_q4_2019 VALUES LESS THAN (TO_DATE('01-JAN-202','DD-MON-YYYY'))
);
PostgreSQL:
语法规则:
CREATE TABLE table_name (
column1 datatype,
column2 datatype,
...
)
PARTITION BY RANGE(column_name) (
PARTITION partition_name1 VALUES LESS THAN (value1),
PARTITION partition_name2 VALUES LESS THAN (value2),
...
);
具体例子:
CREATE TABLE sales (
sale_id INTEGER,
sale_date DATE,
sale_amount NUMERIC(10,2)
)
PARTITION BY RANGE(sale_date) (
PARTITION sales_q1_2019 VALUES LESS THAN ('2019-04-01'),
PARTITION sales_q2_2019 VALUES LESS THAN ('2019-07-01'),
PARTITION sales_q3_2019 VALUES LESS THAN ('2019-10-01'),
PARTITION sales_q4_2019 VALUES LESS THAN ('202-01-01')
);
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