ORACLE数据库表空间、用户、分区表创建及维护

本文主要描述了ORACLE数据库在应用开发前期的数据库设计相关表空间、用户、表的初始化工作。

1、登录数据库

C:\Users\Administrator>SQLPLUS system/[email protected]/ora150

 

2、查看数据文件存储路径

SQL> SELECT FILE_NAME FROM DBA_DATA_FILES WHERE ROWNUM <3;

 

3、创建表空间、索引表空间

CREATE TABLESPACE TBS_CI_COLL NOLOGGING BLOCKSIZE 16K DATAFILE 'D:\ORADATA\ORA150\TBS_CI_COLL.ORA' SIZE 1024M REUSE AUTOEXTEND ON NEXT 256M MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;

 

CREATE TABLESPACE TBS_CI_COLL_IDX NOLOGGING BLOCKSIZE 16K DATAFILE 'D:\ORADATA\ORA150\TBS_CI_COLL_IDX.ORA' SIZE 1024M REUSE AUTOEXTEND ON NEXT 256M MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO;

 

4、创建数据库用户

CREATE USER CI_COLL PROFILE DEFAULT IDENTIFIED BY CI_COLL DEFAULT TABLESPACE TBS_CI_COLL ACCOUNT UNLOCK;

 

5、数据库用户授权

GRANT CONNECT TO CI_COLL WITH ADMIN OPTION;

GRANT RESOURCE TO CI_COLL;

GRANT CREATE ANY TABLE TO CI_COLL;

GRANT INSERT ANY TABLE TO CI_COLL;

GRANT SELECT ANY TABLE TO CI_COLL;

GRANT UPDATE ANY TABLE TO CI_COLL;

GRANT DELETE ANY TABLE TO CI_COLL;

GRANT ALTER ANY TABLE TO CI_COLL;

GRANT DROP ANY TABLE TO CI_COLL;

GRANT CREATE ANY VIEW TO CI_COLL;

GRANT DROP ANY VIEW TO CI_COLL;

GRANT SELECT ANY SEQUENCE TO CI_COLL;

GRANT UNLIMITED TABLESPACE TO CI_COLL;

GRANT EXECUTE ANY PROCEDURE TO CI_COLL;

6、创建普通表，分区表

普通表：

CREATE TABLE CI_COLL.T1(MSG VARCHAR2(10)) TABLESPACE TBS_CI_COLL;

分区表：

CREATE TABLE CI_COLL.T2(TIME_N TIMESTAMP) PARTITION BY RANGE (TIME_N) (PARTITION M_MAX_MON VALUES LESS THAN (MAXVALUE) TABLESPACE TBS_CI_COLL);

 

7、切割分区表新增月度分区

ALTER TABLE CI_COLL.T2 SPLIT PARTITION M_MAX_MON AT (TO_DATE('20150301','YYYYMMDD')) INTO (PARTITION M_201502 TABLESPACE TBS_CI_COLL, PARTITION M_MAX_MON TABLESPACE TBS_CI_COLL) UPDATE GLOBAL INDEXES;

 

8、指定分区表数据查询

INSERT INTO CI_COLL.T2 VALUES (to_date('20150102','yyyymmdd'));

INSERT INTO CI_COLL.T2 VALUES (to_date('20150202','yyyymmdd'));

SELECT * FROM CI_COLL.T2 PARTITION(M_201502) T;

 

9、表空间使用情况查询

SELECT A.TABLESPACE_NAME 表空间名,

TOTAL 表空间大小,

FREE 表空间剩余大小,

(TOTAL - FREE) 表空间使用大小,

ROUND((TOTAL - FREE) / TOTAL, 4) * 100 使用率

FROM (SELECT TABLESPACE_NAME, ROUND(SUM(BYTES) / (1024 * 1024), 4) FREE

FROM DBA_FREE_SPACE

GROUP BY TABLESPACE_NAME) A,

(SELECT TABLESPACE_NAME, ROUND(SUM(BYTES) / (1024 * 1024), 4) TOTAL

FROM DBA_DATA_FILES

GROUP BY TABLESPACE_NAME) B

WHERE A.TABLESPACE_NAME = B.TABLESPACE_NAME;