Oracel incurable diseases

First, when you want to remove your own table created, if you experience the following prompt: [ORA-00604, ORA-00942]

Please enter the following (I add in PL / SQLDeveloper in, you can see in advance if I have two tables):

1. sys / oracle login, create two tables

--1）-----------------------------------------------------------------
-- Create table
create table ARGUMENT$
(
  OBJ#          NUMBER not null,
  PROCEDURE$    VARCHAR2(30),
  OVERLOAD#     NUMBER not null,
  PROCEDURE#    NUMBER,
  POSITION#     NUMBER not null,
  SEQUENCE#     NUMBER not null,
  LEVEL#        NUMBER not null,
  ARGUMENT      VARCHAR2(30),
  TYPE#         NUMBER not null,
  CHARSETID     NUMBER,
  CHARSETFORM   NUMBER,
  DEFAULT#      NUMBER,
  IN_OUT        NUMBER,
  PROPERTIES    NUMBER,
  LENGTH        NUMBER,
  PRECISION#    NUMBER,
  SCALE         NUMBER,
  RADIX         NUMBER,
  DEFLENGTH     NUMBER,
  DEFAULT$      LONG,
  TYPE_OWNER    VARCHAR2(30),
  TYPE_NAME     VARCHAR2(30),
  TYPE_SUBNAME  VARCHAR2(30),
  TYPE_LINKNAME VARCHAR2(128),
  PLS_TYPE      VARCHAR2(30)
)
tablespace SYSTEM
  pctfree 10
  pctused 40
  initrans 1
  maxtrans 255
  storage
  (
    initial 16K
    minextents 1
    maxextents unlimited
  );
-- Create/Recreate indexes 
create unique index I_ARGUMENT1 on ARGUMENT$ (OBJ#, PROCEDURE$, OVERLOAD#, SEQUENCE#)
  tablespace SYSTEM
  pctfree 10
  initrans 2
  maxtrans 255
  storage
  (
    initial 16K
    minextents 1
    maxextents unlimited
  );
create index I_ARGUMENT2 on ARGUMENT$ (OBJ#, PROCEDURE#, SEQUENCE#)
  tablespace SYSTEM
  pctfree 10
  initrans 2
  maxtrans 255
  storage
  (
    initial 16K
    minextents 1
    maxextents unlimited
  );
-- Grant/Revoke object privileges 
grant select on ARGUMENT$ to CTXSYS with grant option;

--2）-----------------------------------------------------------------
-- Create table
create table ASSOCIATION$
(   
OBJ#                NUMBER not null,   
PROPERTY            NUMBER not null,   
INTCOL#             NUMBER,   
STATSTYPE#          NUMBER,   
DEFAULT_SELECTIVITY NUMBER,   
DEFAULT_CPU_COST    NUMBER,   
DEFAULT_IO_COST     NUMBER,   
DEFAULT_NET_COST    NUMBER,   
INTERFACE_VERSION#  NUMBER,   
SPARE2              NUMBER
)
tablespace SYSTEM   
　　pctfree 10   
　　pctused 40   
　　initrans 1   
　　maxtrans 255   
　　storage  
　  (     
　　　　initial 64K     
　　　　minextents 1     
　　　　maxextents unlimited   
　　);
-- Create/Recreate indexes 
　　create unique index ASSOC1 on ASSOCIATION$ (OBJ#, INTCOL#)   
　　tablespace SYSTEM   pctfree 10   initrans 2   maxtrans 255   
　　storage
　　   ( 
　　       initial 64K 
　　       minextents 1 
　　       maxextents unlimited  
　　        ); 
　  create index ASSOC2 on ASSOCIATION$ (STATSTYPE#)  
　  tablespace SYSTEM   pctfree 10   initrans 2   maxtrans 255  
　   storage   
　   (    
　    initial 64K     
　    minextents 1     
　    maxextents unlimited   
　   );
　　

2. can successfully delete the table.

**** Note: For details, see the original network, an auxiliary network from the great God: crazy seal the wind;

Second, the error occurred during recompilation / re-verification

[ORA-04045]: is a bug Oracle, do the following fixes to switch to the original user performs a truncate statement.
1. shortcut "window + R", and out cmd, enter the command line, (sys user enters sqlplus) Input:

1. sqlplus / as sysdba
2. alter system set “_system_trig_enabled” = false scope=spfile;
3. alter system set aq_tm_processes=0 scope=spfile;
4. alter system set job_queue_processes=0 scope=spfile;

2. Restart the database

1. shutdown immediate
2. startup

3. The database can be used normally.
**** Note: For details, see the original network, an auxiliary network from the great God: godymoon

Three, Oracle forgotten your username and password (simple / rude)

1. shortcut "window + R", and out cmd, enter the command line, type:
2. Log sqlplus ----- / nolog
3. Connect the access database ----- / AS SYSDBA
4. change password the user SYS IDENTIFIED by the ALTER ----- 123456;
*** Note: the user name sys, the password is 123456.
**** Note: For details, see the original network, an auxiliary network from the great God: wkk_5;

Fourth, if you want to see in Oracle, which users define their own? To Follow Me ~

The following code can be entered one by one :( Look ~ yo)

select * from dba_user;
select * from all_users;
select * from user_users;

Fifth, if you want to see Oracle, the owner of a particular table

You may enter the following code:

select owner from dba_tables where table_name=upper('表名');

Sixth, whether in Oracle wants to build a user table

In establishing the form can use SQL statement, add the user name. Such as:

create table 用户名.表名();

Seven, if Oracle would like, add some user specific permissions on the table

Simple operation in PL / SQL Developer in:
find the corresponding table, right-click -> Edit -> enter

Eight, if you experience the following: form information has been added in Oracle, look in Eclipse, when you call, but always looks no results.

Actually very simple,
when the form is the information we added in Oracle, the following information will be submitted to OK!
- is not surprising, this is a transaction rollback mechanism, like our bank card transfers, if the unexpected happens or transferor is no confirmation can not be successful, which is a transaction rollback mechanism. To be able to finish saving action by insert commit after commit. -
click to see: the specific location submit information

Nine, if there appears for the first time to see the Oracle information, log on again the second time, you can not connect to the database before?

The reason for this situation: we IP address of the computer is floating.
Amended as follows:
1. Check the name of your computer, copy.
Control Panel -> System Security -> System -> Computer Full name
2. Find your own installation of Oracle folder -> Locate the listener.ora and tnsnames.ora, (use Notepad to open), the corresponding value for their modification HOST full computer name.

Click: modify specific information about the location
3. Oracle listener server restart.
4.OK.