sqlplus - SQL AVG function: -

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what avg columns null values if compute avg on column? compute average considering null zeroes or computes average excluding null values? can creating demo table, i'm in hurry , need quick answers. whole assignment revolving around point.

see here: "null values ignored" http://msdn.microsoft.com/en-us/library/ms177677.aspx

if want make sure not averaging null , not want research, add on where mycolumn not null


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