Example: Returning the Mean Weight from regrtbl

Teradata Database SQL Functions, Operators, Expressions, and Predicates

brand
Software
prodname
Teradata Database
vrm_release
16.10
category
Programming Reference
featnum
B035-1145-161K

This example is based the following regrtbl data. Nulls are indicated by the QUESTION MARK character.

c1   height   weight
--   ------   ------
 1       60       84
 2       62       95
 3       64      140
 4       66      155
 5       68      119
 6       70      175
 7       72      145
 8       74      197
 9       76      150
10       76      ?
11       ?       150
12       ?       ?

The following SELECT statement returns the mean weight from regrtbl where neither height nor weight is null.

   SELECT REGR_AVGY(weight,height) 
   FROM regrtbl;
   
   Regr_Avgy(weight,height)
   ------------------------
                        140