Search more accessed tables in DB2

By Oscar_paredes on Sun, 01/26/2020 - 19:37

 It’s relatively simple and unfamiliar tool for the novices: db2top.

Using the option “T” (tables) and sorting the list (key “z”) using column 1.

The first position will be for the most accessed table.

If there is much difference between that and the rest during an appreciable period of normal use of the database, these tables would be candidates to improve their access or optimice their access to improve the overall performance,

 

TOP 10 rows on DB2

By Oscar_paredes on Sun, 12/15/2019 - 16:30

In this shosrt post we will show how to obtain the N first rows from a Query on IBM DB2.

With Oracle SQL would be with ROWNUM, and with SQL Server we'd use TOP.

 

This is the Top 10 query syntax:

select *

from My_Table

fetch first 10 rows only

 

 

Translation of terminology Oracle - DB2 LUW

By Oscar_paredes on Sat, 06/18/2011 - 17:11

With 9.7 DB2 LUW version, IBM makes a nod to all Oracle DBAs, much more numerous in the DB2 market.

For this reason, 9.7 version has introduced Oracle compatibility modes that let you perform tasks in DB2 with the ease and knowledge that all Oracle DBAs have. However, it is important to know the terminology's translation between Oracle and DB2 if you intend to get into the DB2 world.

In this first article, I relate a number of items from which this introduction is simple and can be read DB2 documentation easily, including general terminology, updates, utilities, and views.

 

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