OWNER,SEGMENT_NAME,SEGMENT_TYPE,TABLESPACE_NAME,BYTES/1024/1024size_MBfromdba_segmentswheresegment_type='TABLE PARTITION'and tablespace_name='&1'orderby5desc; 4.查询某个表空间中,所有【分区索引】的名称、大小: selectOWNER,SEGMENT_NAME,SEGMENT_TYPE,TABLESPACE_...
SELECT owner, segment_name, segment_type, partition_name FROM dba_segments WHERE header_file = &AFN and header_block = &BL; Related Object,Recovery Options 即相关数据对象名称和恢复可选方案。限于篇幅,我们仅罗列常见类型的数据对象的处理: TABLE 若坏块所在的数据对象为SYS用户下的数据字典表,建议联系...
CREATE TABLE CUSTOMER ( CUSTOMER_ID NUMBER NOT NULL PRIMARY KEY, FIRST_NAME VARCHAR2(30) NOT NULL, LAST_NAME VARCHAR2(30) NOT NULL, PHONEVARCHAR2(15) NOT NULL, EMAILVARCHAR2(80), STATUS CHAR(1) ) PARTITION BY RANGE (CUSTOMER_ID) ( PARTITION CUS_PART1 VALUES LESS THAN (100000) TABLE...
通过PARTITION BY RANGE关键字来指出进行分区的策略,其中PARTITION BY LOG(LOG_DATE)指的是使用LOG_DATE来作为分区的字段,里面根据取值的大小,命名了7个分区来存放数据,每个分区还可以指定不同的表空间,第七个分区使用MAXVALUE来避免有数值没有被上面的范围圈定,这个就类似于SWITCH语法中的DEFAULT,不同的,这个并不是...
partition_name, segment_type, bytes / 1024 / 1024 "字节数(M)", tablespace_name from user_segments where segment_name IN ('RANGE_PART_TAB', 'NOR_TAB'); 1. 2. 3. 4. 5. 6. 7. 二、分区表优势 引用Oracle官方文档的说法,https://docs.oracle.com/cd/B19306_01/server.102/b14220/part...
alter table TRENDS split partition P_MAX at(1670428800) into (partition P_20221208,partition P_MAX) update global indexes; 1.5 查询分区表 代码语言:txt AI代码解释 select segment_name,segment_type,partition_name, sum(bytes)/1024/1024/1024 GB ...
alter table TRENDS split partition P_MAX at(1670428800) into (partition P_20221208,partition P_MAX) update global indexes; 1.5 查询分区表 select segment_name,segment_type,partition_name, sum(bytes)/1024/1024/1024 GB from dba_segments
5.分区表TABLE PARTITION占用空间 selectsegment_name,sum(bytes)/1024/1024Mbytesfromdba_segmentswheresegment_type='TABLE PARTITION'groupbysegment_name; 6.查看表的创建时间: altersessionsetnls_date_format ='yyyy-mm-dd hh24:mi:ss';selectcreated,last_ddl_timefromdba_objectswhereowner='NINVOICE'andobjec...
where segment_type='TABLE PARTITION' and owner='EDW' and TABLESPACE_NAME='DATA_TBS_HIS' and (bytes/1024/1024/1024)>1; commit; 1. 2. 3. 4. 5. 6. 7. 8. 4、查询表碎片信息 数据段大小减去实际数据大小,近似于碎片大小 --查询指定分区数据段大小 ...
select segment_name,segment_type,partition_name, sum(bytes)/1024/1024/1024 GBfrom dba_segmentswhere owner = 'ZBX5_USER'and partition_name like 'P_%'group by segment_name,segment_type,partition_name; 手动删除分区 alter table TRENDS drop partition P_20221208 update gl...