need help in forming sql query - mysql

Question

i have one master table and 2 tables, one is inward table and the other one is issue_return_broken table.
all the 3 tables are related using the ITEM_CODE (primary key)..
if i run the below 3 queries ,
Master query :
select item_code, item_name , item_spec, item_quantity,item_unitprice,item_value from
ven_inv_partmaster
where item_code ='NAVTES13'
Query 1:
select entry_date, quantity_in from ven_inv_inwardmaster
where item_code ='NAVTES13'
group by entry_date,quantity_in
query 2:
select issue_date, issue_qnty,rtn_qnty,brkn_qnty from ven_inv_ibrmaster_log ibrlog
where ibrlog.item_code ='NAVTES13' and issue_dateid !=0
group by issue_date,issue_qnty,rtn_qnty,brkn_qnty
Query 3:
select rtn_date, rtn_qnty,brkn_qnty from ven_inv_ibrmaster_log ibrlog
where ibrlog.item_code ='NAVTES13' and issue_dateid =0
group by rtn_date,rtn_qnty,brkn_qnty
i am getting the output as below,
item_code item_name item_spec item_quantity item_unitprice item_value
NAVTES13 NAVIN TEST13 175 15.00 2175.00
output1:
entry_date quantity_in
2012-04-01 00:00:00.000 50
2012-04-05 00:00:00.000 50
output 2:
issue_date issue_qnty rtn_qnty brkn_qnty
2012-04-02 00:00:00.000 25 0 0
2012-04-10 00:00:00.000 10 0 0
output 3:
rtn_date rtn_qnty brkn_qnty
2012-04-05 00:00:00.000 10 0
2012-04-10 00:00:00.000 9 6
i need to combine all these queries into a single query and need a result set like this..
Date Quantity_Inward Quantity_Issued Return_Quantity Broken_Quantity
1/4/2012 50 0 0 0
2/4/2012 0 25 0 0
5/4/2012 0 0 10 0
5/4/2012 50 0 0 0
10/4/2012 0 0 9 6
10/4/2012 0 10 0 0
please help me out to solve this query..
inward & ibr master table :

Answer 1

To combine the results of your queries in the manner shown, use UNION with ordering in an outer query:
SELECT
DATE_FORMAT(logdate, '%e/%c/%Y') AS `Date`,
quantity_in AS Quantity_Inward,
issue_qnty AS Quantity_Issued,
rtn_qnty AS Return_Quantity,
brkn_qnty AS Broken_Quantity
FROM (
select date(entry_date) as logdate, quantity_in,
0 as issue_qnty, 0 as rtn_qnty, 0 as brkn_qnty
from ven_inv_inwardmaster
where item_code ='NAVTES13'
UNION ALL
select date(issue_date), 0, issue_qnty, rtn_qnty, brkn_qnty
from ven_inv_ibrmaster_log
where item_code ='NAVTES13' and issue_dateid != 0
UNION ALL
select date(rtn_date), 0, 0, rtn_qnty, brkn_qnty
from ven_inv_ibrmaster_log
where item_code ='NAVTES13' and issue_dateid = 0
) AS t
ORDER BY logdate ASC
You could even aggregate in the outer query if so desired (your sample output doesn't do so):
SELECT
DATE_FORMAT(logdate, '%e/%c/%Y') AS `Date`,
SUM(quantity_in) AS Quantity_Inward,
SUM(issue_qnty) AS Quantity_Issued,
SUM(rtn_qnty) AS Return_Quantity,
SUM(brkn_qnty) AS Broken_Quantity
FROM (
...
) AS t
GROUP BY logdate
ORDER BY logdate ASC
You might improve performance slightly by combining your queries 2 and 3 as follows:
select
date(if(issue_dateid = 0, rtn_date, issue_date)),
if(issue_dateid = 0, 0, issue_qnty),
rtn_qnty,
brkn_qnty
from ven_inv_ibrmaster_log
where item_code = 'NAVTES13'
Note I have removed the GROUP BY clauses from your queries as your comment above suggests they are not required.