oracle 操作

sqlplus /nolog

conn username/password

select table_name from user_tables; --查看当前登录的用户的表:

SET LONG3000;

SET PAGESIZE0;

SELECT DBMS_METADATA.GET_DDL('TABLE','table_name')from dual; -- 查看表结构 ,table_name 换成对应表名

-- 获取 HOCHOY_T_DYNAMIC_INFO 表字段：

-- table_name,column_name,data_type,data_length,data_precision,data_scale,nullable,column_id等

SELECT * FROM USER_TAB_COLUMNSWHERE TABLE_NAME='HOCHOY_T_DYNAMIC_INFO';

-- 获取 HOCHOY_T_DYNAMIC_INFO 表字段注释

-- TABLE_NAME,COLUMN_NAME,COMMENTS

SELECT * FROM USER_COL_COMMENTSWHERE TABLE_NAME ='HOCHOY_T_DYNAMIC_INFO';

-- 获取 HOCHOY_T_DYNAMIC_INFO 表注释

-- TABLE_NAME,TABLE_TYPE,COMMENTS

SELECT * FROM USER_TAB_COMMENTSWHERE TABLE_NAME ='HOCHOY_T_DYNAMIC_INFO';

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-- ------------------------------------------------------------------Oracle 创建 tablespace / user / 授权 步骤 ---------------------------------------------------------------

-- oracle查看表空间及相应文件所在路径，并创建表空间

col file_namefor a60; -- 格式化 FILENAME 字段，只显示60个字符

set linesize300;  -- 输出一行字符个数为100

SELECT tablespace_name,file_id,file_name,round(bytes / (1024 *1024), 0) total_spaceFROM dba_data_files;

create tablespace HOCHOY_T datafile'/home/oracle/app/oracle/oradata/orcl/HOCHOY_T01.dbf' size 300M autoextendon next 50M maxsize unlimited;

-- 查看临时表空间及相应文件所在路径，并创建临时表空间

select TABLESPACE_NAME,FILE_NAME, AUTOEXTENSIBLE,round(bytes / (1024 *1024), 0) total_space,round(MAXBYTES / (1024 *1024), 0) max_spacefrom dba_temp_files;

create temporary tablespace TEMPORARY_HOCHOY_T tempfile'/home/oracle/app/oracle/oradata/orcl/HOCHOY_T_TEMP.dbf' size 300M autoextendon next 50M maxsize unlimited extent managementlocal;

--创建用户 -- 用户名不区分大小写(Oracle 11g)

create user HOCHOY_T identifiedby HOCHOY_T

default tablespace HOCHOY_T

temporary tablespace TEMPORARY_HOCHOY_T

account unlock;

-- 查看用户

select USERNAME,USER_ID, ACCOUNT_STATUS, DEFAULT_TABLESPACE,TEMPORARY_TABLESPACE,PASSWORD_VERSIONSFROM DBA_USERSWHERE ROWNUM =1 ORDER BY CREATEDDESC ; -- DESC DBA_USERS; 查看 DBA_USERS 表结构

--赋予用户权限

grant create session          to HOCHOY_T; -- 用户创建session的权限，即登陆权限，允许用户登录数据库

grant connect,resourceto HOCHOY_T;

grant create any sequenceto HOCHOY_T;

grant create any table        to HOCHOY_T;

grant delete any table        to HOCHOY_T;

grant insert any table        to HOCHOY_T;

grant select any table        to HOCHOY_T;

grant unlimited tablespaceto HOCHOY_T; -- 授予zhangsan用户使用表空间的权限

grant execute any procedure  to HOCHOY_T;

grant update any table        to HOCHOY_T;

grant create any view        to HOCHOY_T;

grant dbato HOCHOY_T;

-- 查看用户权限

SELECT GRANTEE,PRIVILEGE,ADMIN_OPTIONFROM DBA_SYS_PRIVSWHERE GRANTEE ='HOCHOY_T';

-- oracle查看表空间创建语句

SELECT dbms_lob.substr(DBMS_METADATA.GET_DDL('TABLESPACE', TS.tablespace_name))FROM DBA_TABLESPACES TSwhere TS.TABLESPACE_NAME ='COBUB';

desc DBA_TABLESPACES;  -- 可以查看 DBA_TABLESPACES 表结构

-- Oracle 数据库导出

exp minxing123/minxing123 file=/home/oracle/20191207/HOCHOY.dmp log=/home/oracle/20191207/HOCHOY_exp.logfull = y;

-- Oracle 数据库导入

imp HOCHOY_T/HOCHOY_T file=/home/oracle/20191107/HOCHOY.dmp ignore=yfull=y

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-- 设置sqlplus模式显示总行数（当前连接生效）

set pagesize300;      -- 输出每页行数为300，缺省为24,为了避免分页，可设定为0

show pagesize;          --查看目前的pagesize

-- 设置sqlplus模式显示行宽度（当前连接生效）：

show linesize;          --查看当前的linesize宽度

set linesize300;      --设置linesize宽度