On Fri, Sep 4, 2015 at 1:06 AM, Birgitta Hauser <Hauser@xxxxxxxxxxxxxxx>
wrote:

Specifying a DDS described logical file in a SQL statement is not a good
idea (and never was).


Actually, IBM does recommend it now...
http://www.mcpressonline.com/tips-&-techniques/sql/techtip-boost-sql-performance-on-dds-databases.html




There is a nice whitepaper about indexing and statitisc strategies written
by Kent Milligan and Mike Cain, which should be learned "by heart".
Here is the link:

https://www-304.ibm.com/partnerworld/wps/servlet/ContentHandler/stg_ast_sys_
wp_db2_i_indexing_methods_strategies


​That's a great white paper, but it hasn't been updated since 2011..

It appears IBM has move the information into Infocenter and kept it
updated..

https://www-01.ibm.com/support/knowledgecenter/ssw_ibm_i_72/rzajq/rzajqprint.htm

Charles

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