db2 database size

With the development of relational databases, it has been nearly 40 years since the theory of relational models was proposed, the development of SQL query language, the establishment of performance tuning theory, and the maturity and prevalence of productization, IBM DB2, which claims to inherit this "conventional", has been in this history for 25 years. If the predecessor of DB2 SQL/DS is not included, ora

The following articles mainly introduce the basic tutorial of SQL coding optimization for the IBM DB2 database. The importance of such a specific query is that the more important the query is, you may need to optimize indexes by creating indexes. If you are coding the query that the CIO is running every day, make sure it provides the best performance. Therefore, it is important to create an index for this s

A Installation and configuration of the DB2 database: 1. After the installation is complete, you need to add three operating system groups and three operating system users, as follows: Groupadd-g 999 db2iadm1 # (Group managing instances) Groupadd-g 998 db2fadm1 # (Set of installed instances) Groupadd-g 997 db2asgrp # (Group installing DB2 Administration server)

Recently because the work needs to study the DB2 database, this tutorial explains the DB2 database installs the procedure under Inux. Before installing, please check the DB2 version and license description to increase understanding, first understand what version to instal

Padding-left: 3px; padding-Right: 5px; "class =" noprint "> 1. When the DB2 client opens the control center, an error occurs: [IBM] [JDBC driver] cli0622e accessing the JDBC management service extension.Solution: Enter the DB2 command window and enter db2cc 6789.--------------------------2. DB2 client garbled characters in the XP SystemSolution: C: \ Program Fi

The following articles mainly show you the correct operation steps for manually adding a database to DB2 and the description of the test environment used to implement the operation steps, the following is a description of the specific solution. I hope it will help you in your future study. Test environment: Windows XP DB2 version information D:DB2BIN>db2leve

Circular and archive logs of the DB2 databaseDB2 databases support two different log modes: Circular and Archival ). When a new database is created, the default log mode is loop. If your business requires more advanced functions, you can change the log mode from cyclic to archive. DB2 will always try to write log entries to the main log file set, that is, the log

From: Richard Choi (Richard in JLUBBS)E-mail: richardchoi@126.comThere are many articles on JDBC connection to DB2 databases, such as "JDBC database connection Daquan" and "JSP DB2 Connection database". Although they are all very detailed information, it is also said that it solves the problems not solved by our predec

Today, we will describe some practical operations of the DB2 database recovery experience. We just started the DB2 database recovery test a few days ago, and we can't think of it so quickly. So whenever you find that a technology may be used, but you haven't done it yet, you must start it immediately. Maybe it will be

The following articles mainly describe the steps for restoring a database through DB2 backup and recovery.) I am a fan of DB2 databases. I am interested in understanding all the knowledge of DB2, although I was just familiar with the DB2

In browsing the forum posts, found that many students suffer from not having some "tips", so have to put down the work to check the data, the results found out, just the idea of a meaningful and no. Now sort out some tips to help people in need. Let's start with the DB2. 1. View the Local node directory Command Window ENTER: DB2 list node Directory 2. Cataloging a TCP/IP node Command window:

The following articles mainly describe the actual operation steps for backing up DB2 databases on AIX, as well as the notes worth attention during actual operations, the following is a detailed description of the procedure. I hope you will have a better understanding of the procedure. AIX, DB2, Backup AIX, database The procedure for offline and online full backu

Sysibm.sysversions17.DB2 the field of the table is modified?Only the VARCHAR2 type can be modified and can only be increased without reducingALTER TABLE ALTER COLUMN SET data type varchar (SIZE)18. How do I view the structure of a table?Describe table or describe select * from.19. How to quickly clear a large table?ALTER TABLE table_name ACTIVE not logged initally with EMPTY TABLE20. How do I view the stor

DB2 in the execution of a large insert/update operation, the "The transaction log for the database was full. "Error, check the document is the DB2 log file for the sake of full."Run the following command first to view the log configuration information for the DB2$ DB2 Get DB

For production purposes, install the DB2 database on an IBMX3850 server. The following describes the specific process. Hardware and Software System Configuration: Operating System: susew.ise10linux (64bit) sp3 hardware configuration: 32 GB memory database software: For production purposes, install the DB2

(1) ensure that your DB2 database has been installed and runs properly. (2) (1) ensure that your DB2 database has been installed and runs properly. (2) Start-run the command db2cmd to open a new DB2 command window: in the "command window" of

This article mainly describes how to export LOB data using the table operation technique of DB2 database. If there is a table of employee information (USER_INFO. There are three fields in this table: employee ID, employee name, and employee ID card copy. Because the size of the employee ID card copy is relatively large, the LOB data type is used in the