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Detecting indexes, tables and packages not used on DB2

By Oscar_paredes on Mon, 02/10/2020 - 19:53

DB2, from version 9.7, allows to know easily what indexes are not being used in a Database. The query is also for tables and packages.

This is a useful tool for tuning indexes and detecting problems in their use.

After version 9.7 DB2 includes a new LASTUSED field in the SYSCAT.INDEXES, SYSCAT.TABLES and SYSCAT.PACKAGES tables.

This field indicates the date of last use of indexes, tables or packages.

For example, to query unused indexes since 1/1/2019, you could use this simple query:

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Documentación y recursos

How to repair SQL Server databases with Stellar Repair MS SQL

How to Repair Corrupt SQL Database with the help of Stellar Repair for MS SQL software.Most Recommended software by MVP's and administrators to repair corrupt MDF and NDF files. It recovers tables, triggers, indexes, keys, rules and stored procedures. It supports SQL Server 2017, 2016, 2014, 2012, 2008, 2008R2 and all lower versions.

The beginners guide to NoSQL

Beginners guide to NoSQLTake advantage of noSQL by learning the basics and more with this FREE eBook offered by Robert Gordon University that includes:

  • An introduction to noSQL
  • The four different types of noSQL database that exist
  • The difference between SQL and noSQL and which to choose for your work

 
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Publicaciones en la red

Recently I was invited by BMC Software to participate in their
AMI Z Talk podcast
series to talk about modern data management for Db2... and I
was happy to accept.

Anne Hoelscher, Director of R+D for BMC's Db2 solutions, and I
spent about 30 minutes discussing modern data management, the need
for intelligent automation, DevOps, the cloud, and how
organizations can achieve greater availability, resiliency, and
agility managing their mainframe Db2 environment.

Here's a link to the podcast that you can play right here in the
blog!

BMC AMI Z Talk ·
Episode 7: Automation and the Future of Modern Db2 Data
Management

Modern data management, to me, means flexibility, adaptability,…

Codership is pleased to announce a new Generally Available (GA)
release of the multi-master Galera Cluster for MySQL 5.6, 5.7 and
8.0, consisting of MySQL-wsrep 5.6.49 (release
notes, download),
5.7.31 (release
notes, download),
and 8.0.21 (release
notes, download)
with Galera Replication library 3.31 (…

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