Oracle

Recently encountered a number of ASM data header problems caused disk GROUP can not be normal mount, the database is not working properly, has brought endless trouble, this time thinking, if I did the ASM data header backup How good ah,

Have friends and I have feedback that they're installing Linux 6.5 the 11.2.0.3 RAC appears to be abnormal, root.sh failed at the first node, requesting help View the ASMCA log according to the record above [Main] [2015-07-24 12:49:35.885 CST]

The user of the OID has some properties that are not operational, such as Authpassword, so you need to export these properties (similar to auto-generated primary keys in db) when exporting.Therefore, when OID is exported, it is important to note

the difference between Oracle user and schema (original) Blog Categories:Oracle Day-to-day Management Overview The schema and user definitions are as follows A schema is a collection of the database objects (used by a user.).Schema objects are the

Using PowerDesigner reverse engineering to guide the data Model diagram is very convenient, take Powerdesigner11 and Oracle8i as an example (other versions slightly different) The basic steps are as follows: 1, open or create a new Physicaldatamodel

Nocatalog way: With control file as a catalog, every backup to the controlling files to write a lot of backup information, control files will have more and more backup information, that is, Rman backup information written in the local control file

Background:A colleague mistakenly deletes the online data. So you need to recover the data from the backup.Real house leakage of the rain overnight, the ship was late and the wind. The disk blocks that were backed up in the first two days are now

For environments that do not have shared storage, you can use the NFS-based ASM to configure the RAC. Here is a brief description of how to configure an NFS-based ASM service in an Oracle 18c RAC environment.1. Introduction to the EnvironmentAs

Write in front: In the work, the general installation of Oracle oneG client, configure Net Manager (installed client or server), remote connection to the Oracle database to meet the needs of connecting the database. If you want the machine to

Orabbix is a Zabbix plug-in used to monitor an Oracle db instance. ：http://www.smartmarmot.com/product/orabbix/download/Orabbix plug-in installation and configurationMake sure the JDK environment is installed, Java version view, no then yum installs

ScenarioThe columns in the original table are defined as VARCHAR2 types, and it is well known that the maximum support length for the VARCHAR2 type is 4000. Assume that because of business needs. To convert this column to the CLOB type, it is not

*sql optimization based on ORACLE11GR2 reading notes * Third, cursor in OracleThe cursor in Oracle is a vector of SQL parsing and execution in an Oracle database and is a data structure for C (Oracle is written in C).There are two types of cursor in

Because it is a "top secret leaked" information, to prevent the investigation, the need for the small partners to quickly download the attached courseware document.Because the video is too large, has been placed in the Baidu network, has been in the

1. Connection Code PackageUtil;Importjava.sql.Connection;ImportJava.sql.DriverManager;Importjava.sql.PreparedStatement;ImportJava.sql.ResultSet;Importjava.sql.SQLException; Public classDbutil { Public Static voidMain (String args[])

Does Oracle GoldenGate support extracting or replicating data from SAP HANA database to SAP HANA database?From:Does Oracle GoldenGate support Replication to/from Sap-hana Database (document ID 1413202.1)Suitable for:Oracle goldengate-version 10.4.0.1

What is AWRCRT?The full name of AWRCRT isAUTOMATIC WORKLOAD REPOSITORYCHARTis an Oracle Performance Trend chart Reporting tool, which is a SQL script: Awrct.sql, there is only one SQL script.AWRCRT report is a chart that shows the performance trends

Environment: Oracle 11.2.0.3 Requirements: Production of a table due to improper design, there is no primary key. Now you need to add the primary key, the amount of data is large, want to build in parallel.1. Direct ADD, hint ora-3001: not

We know that there are also some free versions of large databases such asOracle and SQL Server , which have been able to meet the needs of many small and medium-sized projects. For college students, from the goal of learning, the installation of the

  Oracle Data is divided into 32-bit and 64-bit, which correspond to different platforms. For details about how to check whether the database is 32 or 64-bit, refer: Check whether oracle is 32-bit or

Oracle Database Name, Instance name, database domain name, Database Service name, global database name details database name, Instance name, database domain name, Global Database Name, service name, this is a few confusing concepts for many