SQL SERVER 2008 – How does one count different data values in a column

Use this simple query to count the number of data values in a column:

select my_table_column, count(*)

from   my_table

group  by my_table_column;

A more sophisticated example…

select dept, sum(  decode(sex,’M’,1,0)) MALE,

sum(  decode(sex,’F’,1,0)) FEMALE,

count(decode(sex,’M’,1,’F’,1)) TOTAL

from   my_emp_table

group  by dept;


Reference : Dilip Kumar Jena ( https://sqlexplore.wordpress.com )



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