Brief introductionWhen it comes to ensuring that enterprise applications built with IBM DB2 (DB2 certified DB2 Training) ®universal Database "(DB2 UDB) and borland® tools (such as Delphi, C++builder, or Kylix) have the best performance, programmers
1.1 preparations before installation
Create db2 management users, management groups, and instance users
# Groupadd db2user
# Groupadd db2adm
# Useradd-g db2adm-G db2user-m-d/home/db2 db2
Note: The-p parameter is followed by the password, which is
with definition and usage-------Part of the content is reproduced and processed by finishing---------------------1.with Understanding and basic usage the WITH statement, in addition to those who first heard of the WITH statement, most people think
TurnRecently in see DB2, read while writing some, write down, although write a mess. For later use.These are all very simple to write. I think it is some simple operation, and some are excerpted from other people's blog specific is to cite which is
BKJIA Summary: IBM provides the free version of DB2 Express-C for the Community, which provides the same core data features as DB2 Express Edition, it lays a solid foundation for building and deploying applications.
DB2 performance optimization is a
Use a hashed connection to obtain optimal performance from a DB2 Universal DatabaseThe DB2 UDB optimizer can select different methods when executing connections: by default, it selects between nested loop join and merge join. When special
DB2 logs are divided into two modes: log loop and archive log, which are non-archive and archive modes. The following describes the two methods and their relationship with backup archiving settings.
1. Log Loop
This is the default mode, that is, non-
The following articles mainly describe the ultimate SQL Performance tuning Technology of DB2, including the impact of pointers on the Performance of DB2 databases, DB2 performance tuning technology and a detailed description of more future tuning
The following sections describe the necessary decisions and operations required to deploy QReplication, from planning to system settings and production operations. The operations to be performed include: 1. pre-installation verification and capacity
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