I have five tables in a SQL Server database. These tables are listed below and I want to select Data from these tables according to date. I tried searching but could not find solution for multiple tables. Please help
TABLE1
id PId CId
----------- ---------- ------------
1 P001 1
2 P002 2
3 P003 4
4 P004 5
TABLE2
id CId CNo ConId
----------- ---------- ------------ ----------
1 1 1 C123
2 1 2 PA444
3 1 3 PA456
4 2 1 AUX2398
5 2 2 AUX2345
6 4 1 PA123
7 5 1 C234
TABLE3
id CId CNo Label Date
----------- ---------- ------------ ---------- ----------
1 1 1 A 1/1/2000
2 1 2 A 15/10/2020
3 1 3 A 20/10/2020
4 2 1 A 15/10/2020
5 2 2 A 20/10/2020
6 4 1 A 20/10/2020
7 5 1 A 27/10/2020
TABLE4
id CId CNo Label Date
----------- ---------- ------------ ---------- ----------
1 1 1 B 20/10/2020
2 1 2 B 27/10/2020
3 1 3 B 22/10/2020
4 2 1 B 22/10/2020
5 2 2 B 26/10/2020
6 4 1 B 22/10/2020
7 5 1 B 30/10/2020
TABLE5
id CId CNo Label Date
----------- ---------- ------------ ---------- ----------
1 1 1 C 26/10/2020
2 1 2 C 1/1/2000
3 1 3 C 23/10/2020
4 2 1 C 25/10/2020
5 2 2 C 30/10/2020
6 4 1 C 25/10/2020
7 5 1 C 1/1/2000
I want to select Label and Date from Table 3, 4 and 5 where Date is >1/1/2000 and < than and close to 24/10/2020 and grouped according to PId, CId, ConId and CNo.
Desired result:
PId CId ConId CNo Label Date
-------- ---------- ---------- -------- --------- ----------
P001 1 C123 1 B 20/10/2020
P001 1 PA444 2 A 15/10/2020
P001 1 PA456 3 C 23/10/2020
P002 2 AUX2398 1 B 22/10/2020
P002 2 AUX2345 2 A 20/10/2020
P003 4 PA123 1 B 22/10/2020
P004 5 C234 1 - -
Any help will be appreciated. Thank you.
You can achieve this with a couple of CTE's; the first forms a UNION of TABLE3, TABLE4 and TABLE5; the second generates a row number based on the Date descending for each partition of PId, CId, ConId and CNo. We then select all rows from the second CTE where the row number is 1:
WITH CTE AS (
SELECT * FROM Table3 WHERE date > '2000-01-01'
UNION ALL
SELECT * FROM Table4 WHERE date > '2000-01-01'
UNION ALL
SELECT * FROM Table5 WHERE date > '2000-01-01'
),
CTE2 AS (
SELECT t1.PId, t1.CId, t2.ConId, t2.CNo, CTE.Label, CTE.Date,
ROW_NUMBER() OVER (PARTITION BY t1.PId, t1.CId, t2.ConId, t2.CNo ORDER BY CTE.Date DESC) AS rn
FROM TABLE1 t1
JOIN TABLE2 t2 ON t2.CId = t1.CId
LEFT JOIN CTE ON CTE.Cid = t2.CId AND CTE.CNo = t2.CNo AND CTE.Date < '2020-10-24'
)
SELECT PId, CId, ConId, CNo, Label, Date
FROM CTE2
WHERE rn = 1
ORDER BY PId, CId, CNo
Output:
PId CId ConId CNo Label Date
P001 1 C123 1 B 2020-10-20
P001 1 PA444 2 A 2020-10-15
P001 1 PA456 3 C 2020-10-23
P002 2 AUX2398 1 B 2020-10-22
P002 2 AUX2345 2 A 2020-10-20
P003 4 PA123 1 B 2020-10-22
P004 5 C234 1 - -
Demo on dbfiddle
Related
There are some points and point_types with mark actual:
points
------
id point_type
------
1 1
2 1
3 2
point_types
------
id actual
------
1 true
2 false
Also there are directions:
directions
------
id point_from point_to
------
1 1 1
2 1 2
3 1 3
4 2 1
5 2 2
6 2 3
7 3 1
8 3 2
9 3 3
I need only directions with actual point_from and point_to:
id point_from point_to
------
1 1 1
2 1 2
4 2 1
5 2 2
Trying with:
SELECT d.id, d.point_from, d.point_to
FROM directions d
JOIN points p ON (d.point_from = p.id OR d.point_to = p.id)
JOIN point_types pt ON pt.id = p.TYPE AND pt.actual = TRUE
GROUP BY 1,2,3
but getting directions with actual point_from or actual point_to :
id point_from point_to
------
1 1 1
2 1 2
3 1 3
4 2 1
5 2 2
6 2 3
7 3 1
8 3 2
Use a CTE that returns all the ids of the not actual points and then with NOT EXISTS get only the directions that do not contain any of them:
WITH cte AS (
SELECT p.id
FROM points p INNER JOIN point_types pt
ON pt.id = p.point_type
WHERE pt.actual = false
)
SELECT d.*
FROM directions d
WHERE NOT EXISTS (SELECT * FROM cte c WHERE c.id IN (d.point_from, d.point_to));
See the demo.
I need to update a table as :
ID | START_DATE | response| FINAL_TREND
1 14-10-2021 4
1 15-10-2021 3
1 16-10-2021 2
1 17-10-2021 2
1 18-10-2021 3
1 19-10-2021 2
OUTPUT AS:
ID | START_DATE | response| FINAL_TREND
1 14-10-2021 4 NULL
1 15-10-2021 3 4
1 16-10-2021 2 3
1 17-10-2021 2 2
1 18-10-2021 3 2
1 19-10-2021 2 3
So, when running a code:
SELECT LAG(RESPONSE,1) OVER (ORDER BY START_DATE) AS NEW
FROM DUMMY_YC
Output as:
NULL
4
3
2
3
2
2
But when using same code in update AS:
UPDATE DUMMY_YC A SET A.RESPONSE = (SELECT LAG(B.RESPONSE,1) OVER (ORDER BY B.START_DATE) AS NEW
FROM DUMMY_YC B WHERE B.START_DATE=A.START_DATE)
output as:
7 rows updated.
But the actual updated value is
RESPONSE|
(null)
(null)
(null)
(null)
(null)
(null)
(null)
Helps will be appreciated. Working On Oracle SQL Developer.
I'd go with merge.
Before:
SQL> SELECT *
2 FROM test
3 ORDER BY id, start_date;
ID START_DATE RESPONSE FINAL_TREND
---------- ---------- ---------- -----------
1 14.10.2021 4 0
1 15.10.2021 3 0
1 16.10.2021 2 0
1 17.10.2021 2 0
1 18.10.2021 3 0
1 19.10.2021 2 0
6 rows selected.
Merge:
SQL> MERGE INTO test a
2 USING (SELECT b.id,
3 b.start_date,
4 b.response,
5 LAG (b.response, 1) OVER (ORDER BY b.start_date) AS final_trend
6 FROM test b) x
7 ON ( x.id = a.id
8 AND x.start_date = a.start_date)
9 WHEN MATCHED
10 THEN
11 UPDATE SET a.final_trend = x.final_trend;
6 rows merged.
After:
SQL> SELECT *
2 FROM test
3 ORDER BY id, start_date;
ID START_DATE RESPONSE FINAL_TREND
---------- ---------- ---------- -----------
1 14.10.2021 4
1 15.10.2021 3 4
1 16.10.2021 2 3
1 17.10.2021 2 2
1 18.10.2021 3 2
1 19.10.2021 2 3
6 rows selected.
SQL>
I have the following table:
WorkID WorkDesc
--------------------
1 ABCD
2 DEFG
3 HIJK
then I've the following table as the detail of table one:
WorkDetailID WorkID WorkDetailDesc
-----------------------------------------
1 1 001
2 1 002
3 2 006
4 2 007
5 3 015
Each WorkID is always have maximum 2 records and minimum is 1.
I want to have the following result:
WorkID WorkDesc WorkDetailID1 WorkDetailID2
-------------------------------------------------------
1 ABCD 1 2
2 DEFG 3 4
3 HIJK 5 null
Does anyone have an idea how to do that?
Thank you.
You can use pivot. I prefer conditional aggregation. In either case, you need a column for the pivoting. row_number() to the rescue:
select t1.workid, t1.workdesc,
max(case when t2.seqnum = 1 then t2.workdetailid end) as workdetailid1,
max(case when t2.seqnum = 2 then t2.workdetailid end) as workdetailid2
from t1 join
(select t2.*,
row_number() over (partition by t2.workid order by t2.workdetailid) as seqnum
from t2
) t2
on t1.workid = t2.workid
group by t1.workid, t1.workdesc
Table ProductMst (combination is unique - CodeNum, MainCatid, SubCatid)
id CodeNum MainCatid SubCatid Desc Qty
1 001 1 1 prod1 5
2 001 1 2 prod2 10
3 001 2 3 prod3 1
4 002 2 3 prod4 2
5 003 2 3 prod5 3
6 004 1 1 prod6 4
Sub Table SubCatMst
id name subcode
1 scat1 00
2 scat2 00
3 scat3 02
4 scat4 03
Desired Result
id CodeNum MainCatid SubCatid Desc Qty subcode
2 001 1 2 prod2 15 00
3 001 2 3 prod3 1 02
4 002 2 3 prod4 2 02
5 003 2 3 prod5 3 02
6 004 1 1 prod6 4 00
Basically, i wanted to group subcode if same and sum (Qty) based on subcode. And, take the TOP 1 records data as all columns based on MAX(Qty).
Summary: Please check first 2 records which combines.
Query Attempt:
select * from (
select A.*, B.subcode,
ROW_NUMBER() OVER( PARTITION BY A.CodeNum, A.MainCatid, B.subcode ORDER BY A.Qty desc) as row
from ProductMst A
inner join SubCatMst B on A.SubCatid=B.id
) as A where row<=1
Your question says:
i wanted to group subcode if same
If what is the same? I assume this means if codenum is the same.
Regardless of the exact field(s), the logic is the same. You can use window functions to aggregate the data and determine the row to choose:
select ps.*
from (select p.*, sc.subcode,
sum(qty) over (partition by codenum, subcode) as qty,
row_number() over (partition by codenum, subcode order by qty desc) as seqnum
from ProductMst p join
SubCatMst sc
on p.subcatid = sc.id
) ps
where seqnum = 1;
cat_id prod_name parent_cat_id
------ ---------- ------------
1 prod_1 2
2 prod_2 5
3 prod_3 1
4 prod_4 3
5 prod_5 7
6 prod_6 5
In a recursive function, make a table and by using these, if cat_id = 1 and parent_cat_id = 1 take that product name and if that product category id and parent category id is same then take that record also..
ANS IS LIKE :::
1 prod_1 2
2 prod_2 5
5 prod_5 7
WITH rows AS
(
SELECT cat_id, prod_name, parent_cat_id
FROM mytable
WHERE cat_id = 1
UNION ALL
SELECT m.cat_id, m.prod_name, m.parent_cat_id
FROM mytable m
JOIN rows r
ON r.parent_cat_id = m.cat_id
)
SELECT *
FROM rows