Oracle

Basic EnvironmentUse two HP DL580 servers as RAC nodes, storage using IBM V7000. The specific environment is as follows: Equipment Use IP Address Disk space HP DL580 RAC Node 01 rac01-pub:116.1.

Oracle log filesThe following Oracle log files is helpful for resolving issues and Oracle components: Table:log files for Oracle RAC 10g Release 2 Table:log files for Oracle RAC 11g Release 2 and later versions Table:log files for

1. Physical bad blocks and logical bad blocksThere is a concept in the database called data block consistency, Oracle's data block consistency includes two levels: physical consistency and logical consistency, if a data block at these two levels of

Environment:Operating System: win7 ,CPU is inter pc Oracle server:oracle Database 11g Enterprise Edition Release 11.2.0.1.0-64bit ProductionOracle Local client:Release 11.2.0.1.0 32bit ProductionPython version:python2.7.5 (Installation

In Oracle8i or later, you can create the following two types of temporary tables:1. Session-specific Temporal tablesCREATE Temporary table_name>column specification>onCOMMIT PRESERVE ROWS;2. Transaction-specific temporal tablesCREATE Temporary

Groupadd OinstallGroupadd dbaGroupadd OperGroupadd AsmadminGroupadd ASMDBAGroupadd AsmoperUseradd-g oinstall-g dba,asmdba,asmadmin,asmoper GridUSERADD-G oinstall-g DBA,OPER,ASMDBA Oraclepasswd gridpasswd

Go Proc Simple use case--VC connecting OracleOperating system: Windows 7Database version: Oracle 10gVS Version: VS2010Preface: There are many ways to connect Oracle, here only proc as an example, explain how to connect Oracle, there is something

(1)Select the most efficient table name order (valid only in the rule-based optimizer):The Oracle parser processes the table names in the FROM clause in a right-to-left order, and the FROM clause is written in the final table (the underlying table,

How do I implement a method to get the first few data in an Oracle database? is a method like Select TOP n in an SQL statement. This article will tell you the answer, for example, Yo!1. Implement select TOP N in Oracle:Because Oracle does not

1, access to the operating system management tools2. Select the ODBC data source "32-bit or 64-bit"3, the list is the current database existing data source, right click the Add button, add the appropriate data source4. Select the ODBC driver for the

1. Installation PrerequisitesFirst make sure that your computer is not installed before, or that it has been installed and uninstalled. As for how to check if uninstall clean can look at the Oracle Uninstall step behind me. 2. Oraclethe installation.

Some time ago, a Shanghai insurance customer IT director called, said their developers in the development environment to execute exp error, let me go over to check. The spirit of "customer-oriented, service for the root" purpose, the first time to

Applications that have recently been deployed in a production environment are suddenly inaccessible, and viewing the application log finds that the database connection could not be obtained. systemerr R caused by:oracle.net.ns.NetException:The

A recent project involves data-table queries of large data volumes. The total data table is about 700 million-2 billion, the primary key to establish a global unique index, the partition policy is hash partition + range partition, most of the time

Chartorowid (C1)"Feature" Conversion varchar2 type is ROWID value"Parameter" c1, string, string of length 18, string must conform to ROWID format"Return" returns the ROWID value"Example" Select Chartorowid (' aaaadeaabaaaazsaaa ') from DUAL;

The archive log (Archive log) is a non-active redo log backup. By using archived logs, you can keep all the redo history, when the database is in Archivelog mode and log-switched, Background process Arch will save the contents of the redo log to the

One, no return value of the stored procedureAncient cloud: Make haste, in order to let the big guy easier to accept the paging process to write, I still from simple to complex, gradually to everyone to explain. The first is to master the simplest

Setting up connectivity to an Oracle database is simple, but it is also a very important task. After all, the integration of TimesTen with Oracle, compared to the standalone TimesTen, is a more extensive scenario.Whether you follow up the cache

The previous article describes how to download MySQL for vs tools to do MySQL's ADO model data source selection, which will be tested by Oracle today. The steps are as follows:1. NuGet installs the selected item in your project model layer2,

-----Unlocking User StatementsAlter user Assp_test account unlock-----1, the DBA role of the user login, unlock, first set the specific time format, in order to see the specific timeAlter session set nls_date_format= ' Yyyy-mm-dd hh24:mi:ss ';-----2,