Oracle

The AWR(Automatic Workload Repository) Report is an important tool for our daily database performance assessment and problem SQL discovery. Mastering the AWR report is an important skill in developing and operating DBA work.The AWR reporting

1, through the PPA this installation mode features: 1, installed Java with JDK, JRE and browser plug-in 2, automatically identify 64bit or 32BIT3, automatically upgrade to the latest version 4, support Ubuntu 13.10, 13.04, 12.10, 12.04 and 10.04 or

1 Preface some global variables or constants are often encountered during the implementation of a program. This variable or constant is often stored in the global variables of the temporary table or foreground program during program development,

In the project database design process, because the data volume of the single table is very large, the table needs to be partitioned. Because the data in the table is a historical transaction, it is partitioned by month to improve the query and

I. Introduction A Function is a named storage program that can contain parameters (with or without parameters) and return values. The structure of a function is similar to that of a process, but a RETURN clause must be provided to RETURN the

A customer contacted me before today and said that a database could not be started. It took several minutes to remotely read the database. The alert log information is as follows: Sun Mar 20:27:49 2014Media Recovery StartParallel recovery started

I have been in the blog Park for more than two years. Every time I want to write something, I will give myself a variety of excuses ~ Let's start with the longest-used Oracle Database Import today! 1. exp/imp of earlier versions can be connected to

1. Select WINDOW> display View> other. The following window is displayed: The content in this window is as follows (the following content is critical ): Currently, ORACLE9I is installed in the default directory. Therefore, the JDBC

Concept of high water level:All the oracle segments (segments here, for ease of understanding, we recommend that you use segment as a synonym for the table) have an upper limit to accommodate data within the segments, we call this upper limit "high

Hash partitions use the Hash algorithm on the partition key to determine the partition ownership of data. What are the advantages of using Hash partitions? Common advantages of partition tables: such as increasing available data rows, reducing

Oracle-07445 [kgghash]: Oracle BUG causes the process to be killed when updating the LOB FieldSymptom:The user reports that a DB connection is accidentally killed. The following information is found in the alert Log during troubleshooting:Mon Apr 22

The oracle execution plan storage outline corresponds to the SQL statement one by one. Therefore, if we change the predicate condition in the SQL statement, the storage outline will be ineffective or we need to create a new storage outline to

The auto-increment column here mainly refers to the auto-increment of the primary key id in a table. Unlike Mysql, Oracle cannot set the auto-increment column feature when creating a table in CREATE. Oracle must automatically add columns by creating

Problem description: Import using impdp Data Pump at ORACLE11g: ORA-01691: Lob segment ISCS. SYS_LOB0000100750C00045 $ unable to scale through 128 (in tablespace RT_DATA) There may also be insufficient TEMP and UNDO tablespaces: ORA-30036: unable to

SQL Server's built-in import and export tool, when importing a large number of mysql and oracle Data respectively, mysql often encounter format conversion errors, it is not easy to import If the imported data volume is large, it is better to write

This article will introduce you to the oracle logic backup Export usage skills, and hope you can learn more about Export. There are three standard backup methods for an ORACLE database: EXPORT (EXPORT), offline backup, and online backup. The export

View and index of basic PL/SQL PL/SQL: a programming Language combined with a Structured Language (Structured Query Language). It is an extension of SQL and supports multiple data types, such as large objects and Collection types, you can use

1. An error is reported when ORACLE software is installed to 86%. The figure is missing. The log is as follows: /Oracle/u01/app/oracle/product/11.2.0/INFO: db_1/lib/sysliblist '-R/opt/SUNWcluster/lib-R/export/home/oracle/u01/app/oracle/product/11.2.0

12. Start the command line Since I installed it with a VM, you must first change the default startup mode to the command line method. Log On with root, edit the/etc/inittab file, and change d: 5: initdefault: To d: 3: initdefault: Knowledge Point 6:

Local IP Address: 192.168.1.163[Oracle @ rtest ~] $ Sqlplus/nologSQL * Plus: Release 10.2.0.2.0-Production on Sun May 4 19:32:13 2014Copyright (c) 1982,200 5, Oracle. All Rights Reserved.@> Conn sys/oracle ERROR: ORA-01034: ORACLE not available ORA-2