Oracle

With Oracle's standby technology, a single-instance database can be upgraded to a RAC database. This approach can effectively reduce the downtime for single instance migration to the RAC environment. This article describes the preparation for

1.1 Nbu Backup Oracle NBU Backup Oracle Steps 1, install the NBU client on the server where the Oracle database resides. 2. Modify Oracle Backup Database script 9.1.1 Modify Backup Scripts Default script path generated after the client is

Today received a friend database a case, in the DBCA, the automatic collection of statistical information to remove the option, the database run for six months did not collect statistical information, now to enable the following methods: EXEC

First, OCR Check Ocrcheck [Root@rac1 app]# Ocrcheck Status of Oracle Cluster Registry is as follows: Version:3 Total Space (Kbytes): 262120 Used Space (Kbytes): 2424 Available Space (Kbytes): 259696 id:1918230846 Device/file Name: +crs

1. SQL Server, Access database This is all Microsoft's database, is a family, the basic operation is similar, often using the following paging statement: PAGESIZE: Number of records displayed per page CurrentPage: Current page number The name of

11g new Features _ partitioned tables are automatically created by time (Interval partitioning (MONTH, year) Interval Partitioning (MONTH, year) CREATE TABLE Sales6 ( SALES_ID number, Sales_dt Date ) Partition by range (SALES_DT) Interval

Today, someone asked me a materialized view query rewrite problem, finally found that the problem and materialized view of the function is not much relationship, but the implicit conversion caused by the problem. Let's illustrate the problem by

Objective This time, we will be working on Linux to complete the installation and use of Oracle database. Oracle itself is free to download, including its corporate version, and almost anything it buys from WebLogic and sun you can download and

For some businesses, the data stored in the table and its final grid performance is exactly the equivalent of reversing the source table, so this time we have a problem of how to convert rows into columns, and to simplify the problem, we look at the

Oracle Recovery Management (RMAN) has a number of features that can be used to help with the backup and recovery process, which has two versions of the command line and GUI. Typically, RMAN performs and standardizes the backup and recovery processes

We often want to put data from all over the warehouse for unified application. You can now use replication technology to solve this problem. However, there are some conditions for implementing database replication. First, the database should have

Novice in writing program, must be adventurousness, and must have patience, do not compromise, do not understand on the book, online search data, ask friends, resolutely carried out in the end. Recently has been with the knowledge of the ASP in the

ERROR:PLS-00201: Must indicate identifier ' DATETIME ' Line:45 TEXT:AA datetime, ------------------------- No datetime types in Oracle =================================================== Error: PLS-00103: 出现符号 "("在需要下列之一时：　　　　:= . ) , @

For the general data model, there is usually a fact table, a number of dimension tables, through the fact table and dimension table connection, to achieve different levels of query rollup. The problem is that for the organizational structure, all

The architecture of an Oracle Data warehouse can be divided into three tiers: Data acquisition Layer: Oracle database Enterprise ETL OPTION + Oracle database data Quality option in Oracle database 10g the same software is designed from data model,

With the advent of the global information Age, information data has become the focus of enterprises, that is, in all kinds of natural disasters or man-made damage, how to ensure the safety of production data and key business of uninterrupted

Oracle is a staunch advocate of Linux since the launch of the first commercially available database for Linux platform in 1999. In particular, it has always been a leader in enhancing Linux, availability, and scalability. Recently, Oracle has

Use of the 1.having clause The HAVING clause controls the row groups determined by the GROUP BY clause, which only allow constants, clustered functions, or columns in the GROUP BY clause to be involved in the condition of the HAVING clause. 2. Use

Have done some testing, in the startup or shutdown of the database to delete the control file, because this database is only my own test database, then did not care to recover. Today, when I wanted to start this database, I ran into problems:

9i Online redefinition There is a problem, after the completion of online redefinition, the table's name, although the same, but the index, constraints, triggers and other associated objects will change the name, sometimes this will bring some