Previous record -MS Access

Question

Appreciate help if anybody let me know how to acheive \"PreviousValue\" cloumn as shown below in MSAccess

I have records stored in table for various categories other tha

Answer 1

You can use a subquery to get the previous value.

SELECT tx.id,
       tx.name,
       tx.office,
       tx.product,
       tx.overall,
       tx.month,
       tx.VALUE,
       tx.previous,
       Nz((SELECT TOP 1 [value]
           FROM   tablename t
           WHERE  t.id = tx.id
                  AND t.name = tx.name
                  AND t.office = tx.office
                  AND t.product = tx.product
                  AND t.overall = tx.overall
                  AND t.month < tx.month
           ORDER  BY t.month, rnd(t.id) DESC), 0) AS Prev
FROM   tablename tx
ORDER  BY tx.month; 

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New query based on changed, very sparse, sample data

SELECT tz.id, 
       tz.name, 
       tz.office, 
       tz.product, 
       tz.date, 
       tz.month, 
       tz.VALUE, 
       Nz((SELECT TOP 1 [value] 
           FROM   tablename t 
           WHERE  t.id = tz.id 
                  AND t.name = tz.name 
                  AND t.office = tz.office 
                  AND t.product = tz.product 
                  AND t.date < tz.date
           ORDER  BY t.date DESC), 0) AS Prev 
FROM   tablename tz 
ORDER  BY tz.date;