Question

any body can help me please? i want to querying from my table, the purpose is to show which employees are selling over 100 pieces. i have done that query and works,

but the problem arises when I want to display the last time of sale of each employee (who sell goods over 100 pieces)

i have table TBL_SALES like

no   employee_id   name          pieces   sl_time
---|-------------|-------------|--------|----------
1  |     1       | bungdito    | 60     | 2012-03-29 22:20
2  |     1       | bungdito    | 40     | 2012-03-05 18:00
3  |     1       | bungdito    | 50     | 2012-02-18 08:00
4  |     2       | addheat     | 120    | 2012-02-12 09:30
5  |     3       | angga       | 20     | 2012-01-18 10:45
6  |     4       | dimas       | 50     | 2012-01-01 08:30

when i use query like this

select * from 
( 
  select EMPLOYEE_ID, NAME, sum(PIECES) PIECES from 
  ( 
    select EMPLOYEE_ID, NAME, PIECES
    from DB_SCHEMA.TBL_SALES 
  )  
  group by EMPLOYEE_ID, NAME
) where PIECES > 100

i have this correct result

 employee_id   name          pieces 
-------------|-------------|--------
     1       | bungdito    | 150    
     2       | addheat     | 120    

the result above is correct,

but what I need is complete with each employees last transaction time

i have tried to make query but still not correct

select * from 
( 
  select EMPLOYEE_ID, NAME, sum(PIECES) PIECES, SL_TIME

  ( 
    select EMPLOYEE_ID, NAME, PIECES,(select max(WAKTU) SL_TIME from DB_USER.TR_PELANGGARAN where TB_SALES.EMPLOYEE_ID = EMPLOYEE_ID from TB_SALES) SL_TIME
    from DB_SCHEMA.TBL_SALES 
  )  
  group by EMPLOYEE_ID, NAME, SL_TIME
) where PIECES > 100

using that query i still have the wrong result (see the sl_time is same between bungdito and addheat) like :

    employee_id   name          pieces   sl_time
   -------------|-------------|--------|----------
        1       | bungdito    | 150    | 2012-03-29 22:20
        2       | addheat     | 120    | 2012-03-29 22:20

what i need is like this below:

employee_id   name          pieces   sl_time
-------------|-------------|--------|----------
     1       | bungdito    | 150    | 2012-03-29 22:20
     2       | addheat     | 120    | 2012-02-12 09:30

Answer 1

Try this:

  select EMPLOYEE_ID, NAME, sum(PIECES) PIECES, MAX(SL_TIME)
  from DB_SCHEMA.TBL_SALES   
  group by EMPLOYEE_ID, NAME
  having sum(PIECES) > 100