Counting number of returned rows from a query

I am running this query

select distinct DATEname(YYYY,Created_Date) + ' ' +datename(mm,Created_Date) +  ' ' + DATEname(dd,Created_Date)' Days Logged In'
 from Session_Logons where User_ID = 13

which returns a row for each day a login to an application was recorded (there may have been multiple login on a given day, but I only want to record the fact that a login occurred on a given day. Therefore the rows returned are as follows

2010 November 9
2010 November 6
2010 October 31
etc

How can I modify this to give me just a count of the total number of rows, i.e. how many days in total a login was made
Diane LonerganIT Operations MgrAsked:
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X-treemCommented:
try select count(disctinct ...
0
X-treemCommented:
ps: depending on the program language and sql there are built in functions,
eg php mysql_num_rows
0
deightonprogCommented:
SELECT COUNT(0) AS NoRows FROM (select distinct DATEname(YYYY,Created_Date) + ' ' +datename(mm,Created_Date) +  ' ' + DATEname(dd,Created_Date)' Days Logged In'
 from Session_Logons where User_ID = 13) AS T
0

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Microsoft SQL Server

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