asked on

sql table1 rows Vs table2 rows

Hi

need help on a sql query. my problem is i have table (table1) that has say 3 rows (3 col's) and i have this other table (table2) that is empty, but only gets filled up when i enter data into it and the data i do enter into it matches the data that is in table 1.

table 1
----------
Job Component ReqQty

1. test1, comp1, 10
2. test2, comp2, 10
3. test3, comp3, 10

when i enter in the data to this table2 below, comp1 can have one insertion with a qty of 10, comp2 can have 2 insertions each with a qty of 5 making table2 have 3 rows - now is my problem, when i run my query it sees that there are 3 rows in each table and i havnt scanned in comp3, can someone help me amend my query or think of a better way to achieve this?

as i want this select statement to bring me back row 3 in table1(test3, comp3, 10), so i know that i have data to scan into my table2. so effectivley table2 can grow more rows, but based on qty in table1 over table2 i can still bring back table1 data that has not be entered into table2.

Table2
---------
1. test1, comp1, 10
2. test2, comp2, 5
3. test2, comp2, 5

SELECT
              TB.Job as 'JOB'
             , TB.Component as 'SERIAL'
             , TB.ReqQty as 'QTY'
            FROM (
                  select row_number() over (partition by Job,Component ORDER BY ReqQty) rownum, *
                  from table1 WITH (NOLOCK)) TB
            LEFT JOIN (
                  select row_number() over (partition by WORKORDER,PARTNUMBER ORDER BY QTY) rownum, *
                  from table2) CKV ON ((TB.Job = CKV.[WORKORDER])
                  AND TB.Component = CKV.[PARTNUMBER])
                  AND CKV.rownum = TB.rownum
            WHERE ((CKV.[WORKORDER] IS NULL)
                  AND (CKV.[PARTNUMBER]) IS NULL
                  AND (TB.Job = @JOB))

I am using sql server 2012.

hope makes sense...

Thanks

razza_b

ASKER

and...another example

if i have this below with data entered into table2, i still need to bring back comp2 from table1 as there is still qty to be inserted into table2

Table2
---------
1. test1, comp1, 10
2. test2, comp2, 5 <--- still to enter a qty of 5
3. test3, comp3, 10

i should also mention that i can enter in data into table2 with a qty greater than or equal to reqQty. and if lower than the reqQty then thats how multi rows happen but as long as it reaches it reqQty.

PortletPaul

Job, Component, ReqQty :: table1
WORKORDER, PARTNUMBER, QTY :: table2

and you want to compare table1.ReqQty to SUM(table2.QTY)

SELECT
      Job
    , Component
    , ReqQty
    , sum_qty
FROM table1
      LEFT JOIN (
                  SELECT
                        WORKORDER
                      , PARTNUMBER
                      , SUM(QTY) AS sum_qty
                  FROM table2
                  GROUP BY
                        WORKORDER
                      , PARTNUMBER
            ) AS t2
                  ON table1.Job = t2.WORKORDER
                        AND table1.Component = t2.PARTNUMBER
WHERE t2.sum_qty <> table1.ReqQty
      OR t2.WORKORDER IS NULL
ORDER BY
      Job
    , Component

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razza_b

ASKER

Thanks

if i where to pass in a param @JOB into my SP how would i then filter it out?

ASKER CERTIFIED SOLUTION

PortletPaul

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