Access to a DB2 table can be implemented even in the case of cross-database access. The following describes the methods for cross-database access to a DB2 table.
This document describes how to access table 1 of the target database dbtarget in the source database dbsrc in the same database instance.Username: usr, password: pwd
Technical Field: db2 joint database
G
where directory_or_device is the name of the directory or device that stores the backup.
Migrate windows to linux:
DB2movetfmsexport;
createdbtfms;
DB2movetfms-u-pimport>a.txt;
DB2movetfmsw179import-uDB2admin-pDB2admin>a.txt
Confirm execution: TERMINATE
6. Restore the database
(1) first create an empty Database: DB2 create db NewdbName
(2) DB2 restore olddbName (database name to be restor
This article mainly describes how to complete the porting process of PHP application system based on DB2 from AIX platform to Linux platform. This paper includes the basic DB2 database porting, the detailed steps of porting the PHP application system in the upper layer, and the problems and solutions that may be encountered during the migration.Task overviewThe system migration is mainly divided into the fo
This article mainly introduces what is DB2 database partition and why database partition is used. The following uses Balanced Warehouse E7100 as an example to introduce the basic methods and application practices of database partition management.
DB2 database Partitioning is provided by the DB2 Enterprise Edition DPF (Data Partitioning Feature) option, which is m
1. The string connection in DB2 is available "| ".
2. How to quickly delete a large number of data tables (test is a database table)
The most common and most commonly used statement: delete from test. However, this method is inefficient and takes too long, because database logs must be recorded when data is deleted.
Import from/dev/null of del replace into test // first clear and then import data (because the imported file is empty, it is equiva
statement to be written in the SQL statement text. Like substitute literals , the DB2 optimizer can use information about the distribution in a table. However, because the statement text changes, this statement needs to be re-prepared each time it is run.
CONVERT_FAE_TO_CTE: for sap whose kernel version is earlier than 7.0, this parameter is used to generate an SQL statement FOR the ABAP statement that controls the FOR ALL ENTIRES structure.
Use t
21. check the local node db2 list node direcotry 22. node deserialization db2 uncatalog node node_name www.2cto.com 23. database cataloguing db2 catalog db db_name as db_alias at node node_name 24. view the database catalog db2 list db directory 25. connect to the database db2
Download revision package
DB2 does not require different levels of revision packages to be installed one by one. Higher-Level revision packages contain all the code in the lower-level revision packages, so you can select the most current-Level revision packages for download.Download location: ftp://ftp.software.ibm.com/ps/products/db2/fixes/
Today, we mainly describe how to minimize the planned downtime of DB2 9.7 database online mode changes when modifying database objects. We all know that IBM®DB2®9.7 introduces new enhancements that allow you to change database objects and ensure that users have full access to these objects during database modification.
These enhancements allow the database administrator to dynamically modify the database mo
. Install the DB2 client software and sqlserver2000 software on the PC.
2. Configure the ODBC data source for windows:
Choose "start"> "program set"> "System Management Tools"> "Data Source"> "ODBC" to configure the user DSN or system DSN: add-select IBM DB2 odbc driver-> Custom Data Source Name (for example, DB2TEST)-> Database Name (required !) -"OK.
3.
client (English version)
Specific steps:
1. Install the DB2 connection Server Client software and sqlserver2000 software on the PC.
2. Configure the ODBC data source for windows:
Choose "start"> "program set"> "System Management Tools"> "Data Source"> "ODBC" to configure the user DSN or system DSN: add-select IBM DB2 odbc driver-> Custom Data Source Name (for ex
package does not exist on the suse linux 10 cd. You need to download and install the package yourself. Otherwise, when installing DB2, the system reports that libstdc ++ cannot be found. so.5 alarm. (For DB2 database servers and clients, website space, libstdc ++. so.5 is required. If you use g ++ 4.1 On RHEL 5 or SLES 10 to compile the C ++ application, the following warning is generated: libstdc ++ requi
directory ③ enter the data directory command: command: DB2LOOK-D DATABASE_NAME-E-A-I USER_NAME-w password-O DB_DLL. SQL description: DATABASE_NAME-Database Name USER_NAME-login Database User Name PASSWORD-login Database User PASSWORD DB_DLL. SQL-database full table SQL script file 2) DB2 command line export database full database data ① Execute Command, export data command: DB2MOVE DATABASE_NAME EXPORT-u USER_NAME-p PASSWORD Description: DATABASE_NAM
The selection of DB2 performance optimization policies determines the effect of database optimization. The following describes the considerations for optimizing the performance of ten DB2 databases. I hope this will help you learn about the performance optimization of DB2.
1. Provide appropriate statisticsFor the DB2 o
partitions can improve the performance, because logs are written in parallel on each database partition, in addition, each single partition requires fewer logs to be recorded.
DB2 provides near-linear scalability as data volumes or processors and partitions increase. However, whether database partitions provide the most benefits depends on the workload of processing, the maximum table size, and other factors.
When to use database partitioning?
The ba
Differences between OLAP and OLTP Environments
1 The performance tuning in the DB2 data warehouse environment is different from that in the OLTP environment, mainly manifested in the following aspects:
1.1 transaction length. Transactions in the OLTP environment are usually short transactions, including multipleSQLStatements, which can often be completed within several seconds. In a data warehouse environment, it is often a long transaction, and only
Here will tell you a few dbase:db2 common commands and skills, hope that through these commands and skills, can simplify everyone's work, improve efficiency.
1.DB2 inside the string connection can be "| |" This is connected
2. How to quickly delete a large number of data tables (test is a database table)
The most commonly used statement: Delete from Test, but it is inefficient and takes too long because the database log is logged when data is delet
This article mainly describes three suggestions for implementing the DB2 database design, including selecting the appropriate language and database character set, evaluate the size and quantity of related database objects and describe the details of the solution for database backup and restoration.
1. Select the appropriate language and database character set.
When deploying a database in an enterprise, y
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