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DB2 — DBA to DBA
DB2 Up one level Information about DB2: Problem Resolution, How To, Articles, DB2 Chats and Hints How To's This topic contains hints and procedures step by step about how to do DBA tasks on DB2 Database. Read More…

DB2 Materials - DBA to DBA
DB2 9 Fundamentals certification 730 prep series The Fundamentals tutorial series provides an introduction to SQL (Structured Query Language) and covers how DB2® 9 is packaged and installed, how to create databases and database objects, and the basics of database security and transaction isolation. Read More…

How to use DB2 Federation - DBA to DBA
Learn how to use DB2 Federation with steps including wrapper, server, user mapping, and nickname to access and integrate remote data sources.

HADR and TSA - DBA to DBA
DB2 for Linux, UNIX, and Windows has always been in the forefront of databases in providing such industrial strength reliability. In DB2 UDB V8.2, DB2 introduced two new features that further provide customers with options for implementing high availability, disaster recovery (HADR) and automatic client rerouting capabilities.

Monitor CPU, MEM and I/O usage - DBA to DBA
Listing 2 is a sample topas output that shows a DB2 process consuming 33.3% CPU. You can use the topas output to get specific information such as the process id, the CPU usage and the instance owner who started the process.

How to alter an index on DB2 - DBA to DBA
How to alter an index on DB2 check, drop and create

How to create an event monitor - DBA to DBA
How to create an event monitor Event monitors are database objects, and as such, they are created and manipulated using SQL statements

DB2 Lock Modes - DBA to DBA
DB2 utilities like LOAD and REORG use table level U locks to allow concurrent read activity but prevent any concurrent updates. DB2 uses the non-intent mode locks Exclusive (X), Super exclusive (Z) and Next Key Weak (NW) for write requests. 1 - A Z mode lock is super-exclusive, no access by any other transaction.

Lock Wait and Lock timeout - DBA to DBA
You can collect more data about this application running this command: db2 get snapshot for application agentid 161 and determine if this connection should be killed or keep running. Locks will be held untill this application finish the processing. If Status = Lock-wait: this application is waiting for another connection to release the locks.

How to create and use sequence on DB2 - DBA to DBA
By default the sequence number starts at one and increments by one at a time and is of an INTEGER data type. The application needs to get the next value in the sequence by using the NEXT VALUE function. This function generates the next value for the sequence which can then be used for subsequent SQL statements: VALUES NEXT VALUE FOR SEQ1

 

 

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