I have below query
SELECT Vehicle_ID,Total_Weight,date,bilty_No FROM harvesting
UNION
SELECT Vehicle_ID,Total_Weight,date,Bilty_No FROM Blade_Harvesting
Now i want to show vehicle_name instead of vehicle_ID from vehicle table..
how can i add vehicle table and show name instead of ID?
Here we union your tables as before, aliasing the result as "h", and join onto your vehicle table. This assumes your vehicle table has columns "id" and "vehicle_name". Note that any Vehicle_IDs not present in both the vehicle table and the harvesting table will be omitted from the results, as this is an inner join. To show all vehicles, change "inner join" to "left join". This tells the database to retain everything in your vehicle table, and return NULL values from your harvesting table where there is no corresponding harvesting data.
Select v.vehicle_name, h.Total_Weight, h.date, h.bilty_No
from
vehicle_table v
inner join
(
SELECT Vehicle_ID,Total_Weight,date,bilty_No FROM harvesting
UNION
SELECT Vehicle_ID,Total_Weight,date,Bilty_No FROM Blade_Harvesting
) h
on h.Vehicle_ID = v.id
Try this query --
SELECT Vehicle_Name
,Total_Weight
,DATE
,bilty_No
FROM harvesting H
INNER JOIN Vehicle V
ON H.Vehicle_ID = V.Vehicle_ID
UNION
SELECT Vehicle_Name
,Total_Weight
,DATE
,Bilty_No
FROM Blade_Harvesting BH
INNER JOIN Vehicle V
ON BH.Vehicle_ID = V.Vehicle_ID
Related
this is more like a general question.
I am looking for the best way to join 4, maybe 5 different tables. I am trying to create a Power Bi pulling live information from an IBM AS400 where customer service can type one of our parts number,
see how many parts we have in inventory, if none, see the lead time and if there are any orders already already entered for the typed part number.
SERI is our inventory table with 37180 records.
(active inventory that is available)
METHDM is our kit table with 37459 records.
(this table contains the bill of materials for custom kits, KIT A123 contains different part numbers in it witch are in SERI as well.)
STKA is our part lead time table with 76796 records.
(lead time means how long will it take for parts to come in)
OCRI is our sales order table with 6497 records.
(This table contains all customer orders)
I have some knowledge in writing queries but this one is more challenging of what I have created in the past. Should I start with the table that has the most records and start left joining the rest ?
From STKA 76796 records
Left join METHDM 37459 records on STKA
left join SERI 37180 records on STKA
left join OCRI 6497 records on STAK
Select
STKA.v6part as part,
STKA.v6plnt as plant,
STKA.v6tdys as pur_leadtime,
STKA.v6prpt as Pur_PrepLeadtime,
STKA.v6lead as Mfg_leadtime,
STKA.v6prpt as Mfg_PrepLeadTime,
METHDM.AQMTLP AS COMPONENT,
METHDM.AQQPPC AS QTYNEEDED,
SERI.HTLOTN AS BATCH,
SERI.HTUNIT AS UOM,
(HTQTY - HTQTYC) as ONHAND,
OCRI.DDORD# AS SALESORDER,
OCRI.DDRDAT AS PROMISED
from stka
left join METHDM on STKA.V6PART = METHDM.AQPART
left join SERI on STKA.V6PART = SERI.HTPART
left join OCRI on STKA.V6PART = OCRI.DDPART
Is this the best way to join the tables?
I think you already have your answer, but conceptually, there are a few issues here to deal with, and I figured I would give you a few examples, using data a little bit like yours, but massively simplified.
CREATE TABLE #STKA (V6PART INT, OTHER_DATA VARCHAR(50));
CREATE TABLE #METHDM (AQPART INT, KIT_ID INT, SOME_DATE DATETIME, OTHER_DATA VARCHAR(50));
CREATE TABLE #SERI (HTPART INT, OTHER_DATA VARCHAR(50));
CREATE TABLE #OCRI (DDPART INT, OTHER_DATA VARCHAR(50));
INSERT INTO #STKA SELECT 1, NULL UNION ALL SELECT 2, NULL UNION ALL SELECT 3, NULL; --1, 2, 3 Ids
INSERT INTO #METHDM SELECT 1, 1, '20200108 10:00', NULL UNION ALL SELECT 1, 2, '20200108 11:00', NULL UNION ALL SELECT 2, 1, '20200108 13:00', NULL; --1 Id appears twice, 2 Id once, no 3 Id
INSERT INTO #SERI SELECT 1, NULL UNION ALL SELECT 3, NULL; --1 and 3 Ids
INSERT INTO #OCRI SELECT 1, NULL UNION ALL SELECT 4, NULL; --1 and 4 Ids
So fundamentally we have a few issues here:
o the first problem is that the IDs in the tables differ, one table has an ID #4 but this isn't in any of the others;
o the second issue is that we have multiple rows for the same ID in one table;
o the third issue is that some tables are "missing" IDs that are in other tables, which you already covered by using LEFT JOINs, so I will ignore this.
--This will select ID 1 twice, 2 once, 3 once, and miss 4 completely
SELECT
*
FROM
#STKA
LEFT JOIN #METHDM ON #METHDM.AQPART = #STKA.V6PART
LEFT JOIN #SERI ON #SERI.HTPART = #STKA.V6PART
LEFT JOIN #OCRI ON #OCRI.DDPART = #STKA.V6PART;
So the problem here is that we don't have every ID in our "anchor" table STKA, and in fact there's no single table that has every ID in it. Now your data might be fine here, but if it isn't then you can simply add a step to find every ID, and use this as the anchor.
--This will select each ID, but still doubles up on ID 1
WITH Ids AS (
SELECT V6PART AS ID FROM #STKA
UNION
SELECT AQPART AS ID FROM #METHDM
UNION
SELECT HTPART AS ID FROM #SERI
UNION
SELECT DDPART AS ID FROM #OCRI)
SELECT
*
FROM
Ids I
LEFT JOIN #STKA ON #STKA.V6PART = I.Id
LEFT JOIN #METHDM ON #METHDM.AQPART = I.Id
LEFT JOIN #SERI ON #SERI.HTPART = I.Id
LEFT JOIN #OCRI ON #OCRI.DDPART = I.Id;
That's using a common-table expression, but a subquery would also do the job. However, this still leaves us with an issue where ID 1 appears twice in the list, because it has multiple rows in one of the sub-tables.
One way to fix this is to pick the row with the latest date, or any other ORDER you can apply to the data:
--Pick the best row for the table where it has multiple rows, now we get one row per ID
WITH Ids AS (
SELECT V6PART AS ID FROM #STKA
UNION
SELECT AQPART AS ID FROM #METHDM
UNION
SELECT HTPART AS ID FROM #SERI
UNION
SELECT DDPART AS ID FROM #OCRI),
BestMETHDM AS (
SELECT
*,
ROW_NUMBER() OVER (PARTITION BY AQPART ORDER BY SOME_DATE DESC) AS ORDER_ID
FROM
#METHDM)
SELECT
*
FROM
Ids I
LEFT JOIN #STKA ON #STKA.V6PART = I.Id
LEFT JOIN BestMETHDM ON BestMETHDM.AQPART = I.Id AND BestMETHDM.ORDER_ID = 1
LEFT JOIN #SERI ON #SERI.HTPART = I.Id
LEFT JOIN #OCRI ON #OCRI.DDPART = I.Id;
Of course you could also add some aggregation (SUM, MAX, MIN, AVG, etc.) to fix this problem (if it is indeed an issue). Also, I used a common-table expression, but this would work just as well with a subquery.
Expanding on a comment made on the question..
I would say I will start with SERI as that table contains the entire inventory for our facility and should cover the other tables
However the question said
SERI is our inventory table with 37180 records. (active inventory that is available)
In my experience, active inventory, isn't the same as all parts.
Normally, in a query like this, I'd expect the first table to be a Parts Master table of some sort that contains every possible part ID.
I have 2 tables, Members and Enrollments. Both tables can be joined using primary key Member ID.
I need to write a query which returns all the members in the Members table which don't have a corresponding row in the Enrollments table and vice versa.
This is what I have so far:
IF OBJECT_ID('tempdb..#memberswithoutenrollments') IS NOT NULL
DROP TABLE #memberswithoutenrollments
SELECT m.*
INTO #memberswithoutenrollments
FROM ABC_Members m
LEFT OUTER JOIN ABC_MemEnrollment e ON m.MemberID = MemberID
FULL JOIN is a simple method for comparing lists between two tables:
SELECT COALESCE(e.MemberID, m.MemberID),
(CASE WHEN e.MemberID IS NULL THEN 'No Enrollments' ELSE 'No Member' END)
FROM ABC_Members m FULL JOIN
ABC_MemEnrollment e
ON m.MemberID = e.MemberID
WHERE e.MemberID IS NULL OR m.MemberID IS NULL;
But if you have proper foreign key relationships, then you should never have enrollments without members.
You can use NOT IN to your benefit here.
WITH
-- Create a list of all of the matches
in_table AS
(
SELECT
Member_ID
FROM
Enrollments
WHERE
Members.MemberID = Enrollments.Member_ID
),
result_table AS
(
SELECT
*
FROM
Members
-- Grab only the values from members that DO NOT APPEAR in in_table
WHERE
MemberID NOT IN (SELECT DISTINCT FROM in_table)
)
-- Grab all results
SELECT * FROM result_table
I'm having some hard time doing the join function on those two tables. I have simplified the example dataset as there are additional where-clauses involved for the first table however that doesn't seem to be a problem.
I would write the query for joining the two tables below:
select a.prod_code, a.prod_name, b.ref_value from Product_code a
left join Product_reference b on a.prod_code = b.pref_code
where a.prod_code <> 'CURTAIN' and b.ref_value = 'MAN'
The problem I'm facing is that I want to join tables kind of conditionally. I.e. if the ref_type value is 'MAN' in Product_reference table, I do want to join it, otherwise not.
For an example this query would not include "Chair" in the result as it does not have an ref_type 'MAN' available in the "Product_name". What I'd need though is still show it in the query result, just without joined value from the Product_reference table (given that value with ref_type 'MAN' does not exist for it), not leave it out altogether.
Meanwhile Product_name table record 'CURTAIN' should be left off (regardless if Product_reference ref_type 'MAN' exists or not)
Any recommendations?
Product_code
prod_code prod_name
A Table
B Chair
C Window
D Door
E Curtain
Product_reference
pref_code ref_type ref_value
A MAN x
A AUTO y
B AUTO z
C AUTO z1
C MAN x1
D AUTO zxc
E AUTO abc
E MAN cba
Move b.ref_value = 'MAN' to the join predicate:
SELECT a.prod_code, a.prod_name, b.ref_value
FROM Product_code a
LEFT JOIN Product_reference b ON a.prod_code = b.pref_code AND b.ref_value = 'MAN'
WHERE a.prod_code <> 'CURTAIN'
This will accomplish what you want, which is only left joining the data from table b where b.ref_value = 'MAN', instead of removing all other rows from the result set altogether.
Side note, thanks for including your query and sample data in your very well made question. We appreciate it.
you could use a inner join on the distinct product that have 'MAN'
select
a.prod_code
, a.prod_name
, b.ref_value
from Product_code a
inner join (
select distinct pref_code
from Product_reference
where ref_type = 'MAN') t2 on t2.pref_code = a.prod_code
and a.prod_code <> 'CURTAIN'
I have two tables tables, each with primary keys for different people and the contact dates in each category.I am trying to find the most recent contact date for each person, regardless of what table its in. For example:
CustomerService columns: CustomerKey, DateContacted
CustomerOutreach columns: CustomerKey, DateContacted
And I'm just trying to find the very latest date for each person.
Use something like this.
You need to combine the two tables. You can do this by a union. There will be duplicates, but you just group by the customerKey and then find the Max DateContacted
SELECT * INTO #TEMP FROM (
SELECT
CustomerKey
, DateContacted
FROM CustomerService CS
UNION
SELECT
CustomerKey
, DateContacted
FROM CustomerOutreach CS
)
SELECT
CustomerKey
, MAX(DateContacted)
FROM #TEMP
GROUP BY
CustomerKey
Join your tables on primary keys and make a conditional projection.
Select cs.CustomerKey,
CASE WHEN cs.DateContacted <= co.DateContacted
THEN co.DateContacted
ELSE cs.DateContacted END
from CustomerService cs inner join CustomerOutreach co
on cs.CustomerKey = co.CustomerKey
I would do something like this.
Select b.customerKey, b.dateContacted
from (
select a.customerKey, a.DateContacted, Row_Number() over (Partition by customerKey order by DateContacted desc) as RN
from (
Select c.customerKey,
case when (s.DateContacted > o.dateContacted) then s.dateContacted else o.datecontacted end as DateContacted
from Customer c
left outer join customerService s on c.customerKey = s.customerKey
left outer join customerOutreach o on c.customerKey = s.customerKey
where s.customerKey is not null or o.customerKey is not null
)a
)b
where b.RN = 1
This solution should take care of preventing the case of having duplicates if both tables have the same max DateContacted.
http://sqlfiddle.com/#!3/ca968/1
Table 1: LocID, Prod_ID, Metric_ID, Metric_Data
Table 2: LocID, Metric_ID, Metric_Data
I need a Result Table as:
LocID
Prod_ID
Metric_ID
Metric_Data with the following conditions being met:
When Metric_ID's match, the Metric_Data will be added
When Metric_ID do not match, the relevant Metric_Data will be shown (meaning the one which has value)
Please note only a some common and some different Metric_ID's exist in Table 1 and Table 2.
How do you generate this 3rd table? I have tried all kinds of joins - full, left, right, etc.
EDIT
select
A.LocID,
A.Prod_ID,
B.Metric_ID,
coalesce(C.Metric_Data + D.Metric_Data, C.Metric_Data, D.Metric_Data) Metric_Data
from (
select LocID, Prod_ID from table1 group by LocID, Prod_ID) A
inner join (
select LocID, Metric_ID from table1 group by LocID
union
select LocID, Metric_ID from table2 group by LocID) B on A.LocID = B.LocID
left join table1 C on C.LocID = A.LocID and C.Prod_ID = A.Prod_ID and C.Metric_ID = B.Metric_ID
left join table2 D on D.LocID = A.LocID and D.Metric_ID = B.Metric_ID
Notes:
A: produces all the location and ProdID combinations
B: produces, for each location, all the possible MetricIDs from both tables
C and D: left joins to the data tables to get the Metric Data
Coalesce: returns either C + D, or if one of them is null, return the other
select
coalesce(a.LocID, b.LocID) LocID,
a.Prod_ID,
coalesce(a.Metric_ID, b.Metric_ID) Metric_ID,
coalesce(a.Metric_Data + b.Metric_Data, a.Metric_Data, b.Metric_Data) Metric_Data
from table1 a
full outer join table2 b
on a.LocID = b.LocID and a.Metric_ID = b.Metric_ID
This assumes
You are matching by the tuple (LocID, Metric_ID)
It is possible for either A or B not to have (LocID,Metric_ID) that exists in the other
The result of Metric_Data is either A+B (if both exist), or A or B if only one exists for a (LocID, Metric_ID) combination