标签：cdb oracl value size 使用 default sql 创建表 一个
Data Block是数据库中最小的I/O单元
查看默认表空间位置
select TABLESPACE_NAME,FILE_NAME from dba_data_files;
创建一个表空间放其他的地方把
create tablespace test2 datafile ‘/orcl/app/table/test2.dbf‘ size 20m reuse autoextend on next 20m maxsize UNLIMITED extent management local;
查看CDB
select name,cdb from v$database;
查看pDb
SQL> select pdb_id,pdb_name,dbid,status,creation_scn from dba_pdbs; PDB_ID PDB_NAME DBID STATUS CREATION_SCN ---------- ----------------------------------------------------------------------------------- 3 ORCLPDB 3877422513 NORMAL 1442756 2 PDB$SEED 4118313826 NORMAL 1408751 4 HRPDB 1506437541 NORMAL 4081006 5 SALESPDB 1453096304 NORMAL 4087331
查看PDB状态
SQL> select con_id,dbid,NAME,OPEN_MODE from v$pdbs; CON_ID DBID NAME OPEN_MODE ---------- ---------- ----------------------------------------------------- 2 4118313826 PDB$SEED READ ONLY 3 3877422513 ORCLPDB READ WRITE 4 1506437541 HRPDB READ ONLY 5 1453096304 SALESPDB READ ONLY
创建使用者为test
SQL> create user c##test identified by test; User created.
切换PDB
SQL> show con_name;
CON_NAME
------------------------------
CDB$ROOT
SQL> alter session set container=ORCLPDB;
Session altered.
SQL> show con_name;
CON_NAME
------------------------------
ORCLPDB
创建表空间
SQL> create tablespace test2 datafile ‘/orcl/app/table/test2.dbf‘ size 20M;
Tablespace created.
创建真正的用户
SQL> create user test identified by test default tablespace test2; User created.
授予权限
SQL> grant dba to test
Grant succeeded.
SQL> create table t1 (id int,name varchar2(100)); Table created. SQL> insert into t1 values(1,‘A‘); 1 row created. SQL> alter system checkpoint; System altered. SQL> col name for a10 SQL> select id,name,dbms_rowid.rowid_relative_fno(rowid) file#,dbms_rowid.rowid_block_number(rowid) block# from t1; ID NAME FILE# BLOCK# ---------- ---------- ---------- ---------- 1 A 1 32641 SQL> select p.spid from v$session s,v$process p where s.paddr=p.addr and s.sid in (select userenv(‘sid‘) from dual); SPID ------------------------ 17124 SQL> alter system dump datafile 1 block 32641; System altered. SQL> select p.spid from v$session s,v$process p where s.paddr=p.addr and s.sid in (select userenv(‘sid‘) from dual); SPID ------------------------ 17124 SQL> select p.spid from v$session s,v$process p where s.paddr=p.addr and s.sid in (select userenv(‘sid‘) from dual); SPID ------------------------ 17124 SQL> select object_id from dba_objects where object_name=‘T1‘ and owner=‘SYS‘; OBJECT_ID ---------- 75798
http://www.itpub.net/thread-1772905-1-1.html
标签：cdb oracl value size 使用 default sql 创建表 一个
原文地址：https://www.cnblogs.com/kingle-study/p/10718573.html
