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Recommended Dictionary Statistics to Collect in Teradata 14.0 - comment by carrie

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Roopalini,
 
I don't have a list of DBC stats recommendations focused especially onr the 15.0 release.  What you can do is use the recommendations in the  blog posting for collecting stats on the dictionary tables in 14.0, then add stats to thecollection scripts you plan to use in 15.0 to cover any new DBC tables,  as you find that you need to.
 
The best way to determine which dictionary stats you actually need to collect is to examine DBQL output and see which dictionary views are being used by your end users.  Then make sure all join columns, etc. within those views are covered.  That is likely to differ from site to site.  
 
Thanks, -Carrie
 
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