teradata vs oracle

Oracle's memory configuration is closely related to Oracle performance. Configuration of memory is the configuration that most affects Oracle performance. Memory also directly affects the consumption of two other important resources: CPU and IO. First look at what the main content of Oracle memory storage is: Program code (PLSQL, Java); Information about the s

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 operate Oracle, you need to install Oracle one-to-oneG server.

a question of translation. Executes the second window first, because the query statement executes very long, at this time to execute the first window, the discovery can be inserted successfully , so it can be proved that even in the serialization mode, the query operation will not block the insert operation. Systems that meet the following characteristics are suitable for use with serialization isolation (serializable isolation): ? Data is large, but transactions are short, only databa

Label:Free installation of Oracle clients using PL/SQLThe Oracle client is annoying, and deploying a connection to it usually requires the client to install it, and the installer requires the registry to be written on the target machine, assuming you're not a neat freak, you could still be stuck with something like this: when other programs on your machine rely on x64 's

Oracle experiences 1 -- oracle introduction @ basic SQL statement @ conditional query @ sort data theory and case studies1. Oracle IntroductionOracle is the first word for English translation of oracle (Oracle bone inscriptions) Unearthed from Yin.

Oracle materialized view code example, oracle Materialized View Materialized View of Oracle Recently, oracle materialized views have been updated based on the project business needs. You can search for information on this topic on the Internet to facilitate improvement. The content is as follows: Materialized View is

Oracle Database hot backup and recovery and example, oracle Database Manual Hot Standby (Database opening status) Backup control file: Alter database backup controlfile to '/u01/oradata/prod/con. bak1 '; Back up data files (here pl/SQL is used for batch processing, and the query results can be pasted and run) BeginFor I in (select tablespace_name from dba_tablespaces) loopDbms_output.put_line ('alter tables

The procedure is as follows: // // 1. After installationOracle 11g R2 for x64 LinuxCopy the occi header file and library file:// (1). Copy the header file// Mkdir-P ~ /OCCI-11gR2-X64/include// CP $ ORACLE_HOME/rdbms/public /*~ /Occi/include///// (2). Copy the library file and create a soft link// Mkdir-P ~ /OCCI-11gR2-X64/LIB;// CP $ ORACLE_HOME/lib/libocci. so.11.1 ~ /OCCI-11gR2-X64/lib/// CP $ ORACLE_HOME/lib/libclntsh. so.11.1 ~ /OCCI-11gR2-X64/lib/// CP $ ORACLE_HOME/lib/libocci11.a ~ /OCCI-

Environment:Source Server:VM7.14 rhel5.5-32 Oracle 11.2.0.0g172.16.3.202Target ServerVM7.14 rhel5.5-32 oracle 11.2.0.0g172.16.3.204 Source Server 1. Add verification tables and data to the database: [Oracle @ ebs01 ~] $ Sqlplus "/as sysdba" SQL * Plus: Release 11.2.0.1.0 Production on Sun Jun 10 13:09:43 2012 Copyright (c) 1982,200 9,

Http://blog.csdn.net/lizhenhuatop/archive/2008/09/27/2986303.aspxFYI For historical reasons, Oracle had no Chinese character sets (such as oracle6, oracle7, and oracle7.1), but some users used the database since then, and You can use the us7ascii character set to store Chinese characters, or you may choose a default character set, such as we8iso8859p1 or Us7ascii, and these two character sets do not have Chinese character encoding. Although this chara

, the 11.2.0.1 RAC that is installed on the virtual machine is chosen 11.2.0.1 because of problems with public IP and private network segments. During the installation instance, the computer crashes and restarts, and CRS fails to start. [Root@rac1 bin]#./crsctlstart CRS Crs-4124:oracle highavailability Services startup failed. Crs-4000:command startfailed, or completed with errors. [Root@rac1 bin]# Ps-ef|grep has Root 8081 1 0 03:14? 00:00:00/u01/ap

From:https://support.oracle.comWhat is "Oracle javavm Component Database PSU"?Oracle JAVAVM Component Database PSU is released as part of the Critical Patch Update program from October onwards.IT consists of separate patches: One for JDBC clients-applicable to client, Instant client, Database and Grid oracle_homes.This is a referred to as "JDBC Patch" in the rest of this document. One for the

first, start and stop Oracle Stopping and starting Oracle needs to be switched to Oracle users so that no other user has permission to start and stop Oracle (including root and no permissions). 1. Run Sqlplus without logging on to Oracle:Sqlplus/nolog2. Connect to the Oracle

2014-07-26 BaoxinjianI. Basic concepts of Oracle Architecture 1. Oracle's overall architecture is divided into three parts The first part: System Global Area (SGA) Part Two: program Global zone and background process Part III: Oracle's Files 2. From functional angle to those division Storage structure Includes: Control files, data files, and log files Role: These files form the physical storage str

This article describes how to install Oracle 11gR2 (11.2.0.3) in Oracle Linux 6.3 ). Since Oracle 11g, the official Oracle website does not provide a download link for its Patch. You need to use the Meatlink account to download the Patch. Do not worry about the kids shoes. If you do not have a Metalink account, you can

Summary of calling the oracle stored procedure in java (for example, oracle Stored Procedure) // 1. call + package name + stored procedure name (for incoming and outgoing values ?) String str = "{call SMSBUSINESS. deleteZhZMember (?,?,?)} "; // 2. Establish Connection conn = null; conn = DriverManager. getConnection (); // 3. Use java. SQL. * class CallableStatement cs = conn. prepareCall (str); // 4. input

An error occurred when connecting to the Oracle database with Navicat: ORA-28547: connection to server failed, probable Oracle Net admin error The following error occurs when you use Navicat to connect to the Oracle database: The version of oci. dll is incorrect. Because Navicat connects to the Oracle server throug

1. Create a crontabsu for an Oracle user 1. Create a crontabsu-root crontab-u Oracle-l */5 *****/home/oracle/oracle_backup.sh for an oracle user (this task is executed every five minutes ). 1. Create a crontab for an Oracle userSu-root Crontab-u

According to the ghost sub-requirements, the original use of Oracle alone to send and receive mail was abandoned (the previous article described the specific implementation), instead of using Oracle to call Java, and use javamail to implement the relevant procedures of mail. This problem occurs. I have written Java and PL/SQL, but I have never heard of using Oracle