Oracle User Management
First, the concept of the user
Users, or user, is a popular way to access Oracle database "people." In Oracle, the user's various security parameters can be controlled to maintain the security of the database, these concepts include schemas, permissions, roles, storage settings, space quotas, access resource constraints, database auditing
EXP Export Oracle database table: (as native administrator), refer tohttp://jiqinlin.iteye.com/blog/758469 Export TABLE: Exp username/password @localhost (IP address): Port number/Database instance name file= local address \ Want to generate an indication. DMP owner= (username, Password) eg:exp C # #tjuser/TJUSER@LOCALHOST:1521/ORCL file=c:\adc160624.dmp owner= (C # #tjuser, Tjuser)//tables under the current user
database name, instance Name query: (A
Tags: process build rail info from BSP content lag stop For non-Oracle DB, SQL Server is a sample description: My train of thought A:oracle DB production B:oracle DB Intermediate machine C:sqlserver db destination a-> b->c Note: B on both the rep process also has the EXT process, at this time. There is also a need to establish a rep process for B.A->b can complete the online initialization synchronization (EXPDP based on SCN number)After the initializ
Tags: Oracle goldengate initial Load methodNon-Oracle DB is illustrated with SQL Server as an example:My train of thoughtA:oracle DB production B:oracle DB Intermediate machine C:sqlserver db destinationa-> b->c Note: B on both the rep process and ext process, at this time, C also need to establish a rep process for B.A->b can complete the online initialization synchronization (EXPDP based on the SCN number
ORACLE-012: Automatic varchar2 and number conversion for numbers only in oracle, oracle-012varchar2
When an association query is used, the fields in the two tables define different types. One field is of the varchar2 type, and the other is of the number type. The content is as follows: '20160301' and 00187. In use, the varchar2 type is automatically converted to
There are several modes of locking in Oracle:0:none1:null Empty2:row-s line Sharing (RS): Shared table locks, Sub share3:row-x Line Exclusive (RX): For row modifications, sub Exclusive4:share shared Lock (S): Prevents other DML operations, Share5:s/row-x shared Row Exclusive (SRX): Block other transaction operations, Share/sub exclusive6:exclusive Exclusive (X): Independent access use, exclusive
The types provided by 1.
export or after the import recompile. The stored procedure did not import successfully, so I finally took advantage of Navicat to import the stored procedure successfully.Note: (1) To ensure that two databases have the same character set, if the difference will be an error. I checked the next two database character sets are the same, so I'm not sure what is wrong with the specific report. To view the database character set:SELECT * from V$nls_parameters WHERE PARAMETER in (' Nls_characterset ',
oracle| process
Oracle Process Memory Architecture-how to view memory consumed by Oracle processes
Last Updated:sunday, 2004-11-28 11:12 eygle
It is often asked how the memory resources consumed by the process are determined under UNIX, and why the top tool is displayed very high.
Some people say that the output of top is not accurate, this argument is not e
Oracle 10g and Oracle 11g hand-built case--oracle 10gSystem environment:Operating system: RedHat EL6Oracle:oracle 10g and Oracle 11gThe Manual construction of the library is relatively easy to implement, this case is from 10g and 11g, by hand to build a library to do a simple control, can see 11g and 10g a simple diff
In Oracle Linux 5, we can use ORACLE validated configuration to accelerate the deployment of the Oracle environment. For more information about validated deployments, see:
Oraclevalidated configurations installation instructions
Http://blog.csdn.net/tianlesoftware/article/details/7061684
In Oracle Linux 6,
Oracle Study-Oracle RAC reconstruction Control File
System Environment:Operating System: AIX5.3
Cluster: Oracle 10gR2 CRSOracle: Oracle 10gR2
Rebuild the control file in the RAC environment is similar to that in a single instance, but note the following steps:[Oracle @ aix21
[ORACLE] processing of oracle string objects, oracle string objects
2.1 char field, varchar2 Field
(1) Defining the field length char (10) indicates that the field can contain 10 English characters (regardless of the encoding method, do English characters occupy 10 bytes ?), The physical space is always allocated with 10 characters. The variable length varchar (1
[ORACLE] processing of oracle time objects and oracle object processing
1.1 Use of oracle date objects
(1) Create A date Field
For example,
Create table foo_7 (d1 date );
(2) Use the to_date function to insert a date object. To_date ('string', 'string' format ')
For example,
Insert into foo_7 values (to_date ('August 1
When a client of Oracle 9i or later is connected to a server of Oracle 8i or later versions, all the Chinese data queried becomes garbled. The query finally solved the garbled problem.
The development tool is ASP. NET (C #) + Oracle, using system. Data. oracleclient to connect to the Oracle database.
Solution 1 (the fi
How to uninstall the "hidden oracle" software installed after an error is reported, and the hidden oracle
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Oracle client connection remote Oracle service Chinese garbled problem, oracle Chinese
When the local machine remotely connects to the remote Oracle service, the following retrieval statement is written:
Select * from sys_employee
Chinese garbled characters appear in the results, but the remote server's PL/SQL retri
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