SCOTT@orcl SQL>conn test_user/test_user;
已连接。

TEST_USER@orcl SQL>create table test_tab(name varchar2(10));

表已创建。

TEST_USER@orcl SQL>create index test_idx on test_tab (name);

索引已创建。

TEST_USER@orcl SQL>alter table test_tab add constraint test_cons primary key (name);

表已更改。

TEST_USER@orcl SQL>select object_name,object_type from user_objects;

OBJECT_NAME                                                                                                                      OBJECT_TYPE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
-------------------------------------------------------------------------------------------------------------------------------- -------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
TEST_IDX                                                                                                                         INDEX                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
TEST_TAB                                                                                                                         TABLE

TEST_USER@orcl SQL>set linesize 1000;
TEST_USER@orcl SQL>select constraint_name,constraint_type,table_name from user_constraints;

CONSTRAINT_NAME                C TABLE_NAME                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
------------------------------ - ------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
TEST_CONS                      P TEST_TAB

TEST_USER@orcl SQL>drop table test_tab;

表已删除。

TEST_USER@orcl SQL>select * from user_recyclebin;

OBJECT_NAME                    ORIGINAL_NAME                    OPERATION TYPE                      TS_NAME                        CREATETIME          DROPTIME               DROPSCN PARTITION_NAME                   CAN CAN    RELATED BASE_OBJECT PURGE_OBJECT      SPACE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
------------------------------ -------------------------------- --------- ------------------------- ------------------------------ ------------------- ------------------- ---------- -------------------------------- --- --- ---------- ----------- ------------ ----------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
BIN$QTriIDWWQN+RP7EI7daCAQ==$0 TEST_IDX                         DROP      INDEX                     USERS                          2011-12-30:14:09:07 2011-12-30:14:10:46    2931725                                  NO  YES      53526       53526        53527          8                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          
BIN$DFHwt3pQRhK6qSGhpBXm4w==$0 TEST_TAB                         DROP      TABLE                     USERS                          2011-12-30:14:08:50 2011-12-30:14:10:47    2931730                                  YES YES      53526       53526        53526          8

TEST_USER@orcl SQL>flashback table test_tab to before drop;

闪回完成。

TEST_USER@orcl SQL>desc test_tab;
 名称                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              是否为空? 类型
 ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- -------- ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
 NAME                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              NOT NULL VARCHAR2(10)

TEST_USER@orcl SQL>select object_name,object_type from user_objects;

OBJECT_NAME                                                                                                                      OBJECT_TYPE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
-------------------------------------------------------------------------------------------------------------------------------- -------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
TEST_TAB                                                                                                                         TABLE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
BIN$QTriIDWWQN+RP7EI7daCAQ==$0                                                                                                   INDEX

TEST_USER@orcl SQL>alter index "BIN$QTriIDWWQN+RP7EI7daCAQ==$0" rename to test_idx;

索引已更改。

TEST_USER@orcl SQL>select object_name,object_type from user_objects;

OBJECT_NAME                                                                                                                      OBJECT_TYPE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           
-------------------------------------------------------------------------------------------------------------------------------- -------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
TEST_TAB                                                                                                                         TABLE                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 
TEST_IDX                                                                                                                         INDEX

TEST_USER@orcl SQL>select constraint_name,constraint_type,table_name from user_constraints;

CONSTRAINT_NAME                C TABLE_NAME                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
------------------------------ - ------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
BIN$jSyjUKjxTpKr0R7DWxlmSw==$0 P TEST_TAB

TEST_USER@orcl SQL>alter table test_tab rename constraint "BIN$jSyjUKjxTpKr0R7DWxlmSw==$0" to test_cons;

表已更改。

TEST_USER@orcl SQL>select constraint_name,constraint_type,table_name from user_constraints;

CONSTRAINT_NAME                C TABLE_NAME                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
------------------------------ - ------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        
TEST_CONS                      P TEST_TAB

TEST_USER@orcl SQL>drop table test_tab purge;

表已删除。

TEST_USER@orcl SQL>conn sys/sfis as sysdba
已连接。
SYS@orcl SQL>drop user test_user cascade;

用户已删除。

SYS@orcl SQL>spool off;