Question

I have strings like FVS101209GO5 Stored in a MS Access data table, I want to count the number of strings in a certain year, so in the example that would be the year 2010

I was doing

query = "SELECT SUM( IIF( Mid( KEYLastName, 4, 2) , 1,0)) AS occur FROM MyTable WHERE Year(mydate)=2010 ;"

The length of the string is 12 or 13, for the examples @JW added

qwe123456XXX       -  2012
asd345678XXX       -  2034  
FVS101209GO5       -  2010

Answer 1

If you wish to find the count of occurrences of various years within a string, you might like to use:

SELECT Mid([KEYLastName],4,2) AS [Year], 
       Count(KEYLastName) AS CountOfOccurances
FROM MyTable
GROUP BY Mid([KEYLastName],4,2)

This will return all the two digit years at (4,2) and the number of times they each occur.

Edit re Comments

SELECT KEYLastName, 
       Mid([KEYLastName],4,2) AS [Year], 
       DCount("*","MyTable","Mid([KEYLastName],4,2)=" 
          & Mid([KEYLastName],4,2)) AS YearCount
FROM MyTable