I have two tables:
Table A
ID
ABC_ID
VAL
Table B
ID
ABC_ID
VAL
These two tables are directly related to each other through the ABC_ID column.
I want to find all the VAL column values in table A which are not present in table B for the same ABC_ID.
SELECT A.ABC_ID, A.VAL FROM A WHERE NOT EXISTS
(SELECT * FROM B WHERE B.ABC_ID = A.ABC_ID AND B.VAL = A.VAL)
or
SELECT A.ABC_ID, A.VAL FROM A WHERE VAL NOT IN
(SELECT VAL FROM B WHERE B.ABC_ID = A.ABC_ID)
or
SELECT A.ABC_ID, A.VAL LEFT OUTER JOIN B
ON A.ABC_ID = B.ABC_ID AND A.VAL = B.VAL FROM A WHERE B.VAL IS NULL
Please note that these queries do not require that ABC_ID be in table B at all. I think that does what you want.
Another solution based on JOIN.
Join combines content from table A and table B using a link, the ON part of the request.
SELECT
*
FROM
A
INNER JOIN
B
ON
B.ABC_ID = A.ABC_ID
WHERE
B.VAL <> A.VAL
Basically we are combining table A with table B on ABC_ID and then checking where A.VAL is not equal to B.VAL. The joined data with INNER JOIN only contains records where both table A and B have ABC_ID present ().
DECLARE #start_date DATETIME= '04-01-2021';
DECLARE #End_date DATETIME= '04-30-2021';
declare #min int
declare #max int
select #min =min(test_uid),
#max =max(test_uid)
from test
where DATE >= #START_DATE
AND DATE < DATEADD(DAY, 1, #END_DATE)
select test_UID+1 as FirstMissingId, nextid - 1 as LastMissingId into #tmp from (select test.*,lead(test_UID) over (order by test_UID) as nextid from test
where test_UID between #min and #max ) test where nextid <> test_UID+1
CREATE TABLE #tmp1 ( ID INT )
go
declare #lastmissingid BIGINT
, #firstmissingid BIGINT
declare recscan cursor for
select firstmissingid ,lastmissingid from #tmp
open recscan
fetch next from recscan into #firstmissingid ,#lastmissingid
while ##FETCH_STATUS = 0
begin
declare #maxcnt int = #lastmissingid
declare #mincnt, int =#firstmissingid
WHILE #Counter <= #maxcnt
BEGIN INSERT #tmp1 values(#Counter)
SET #Counter += 1
END
fetch next from recscan into #firstmissingid ,#lastmissingid
end
close recscan
deallocate recscan
Related
I would like to select some rows multiple-times, depending on the column's value.
Source table
Article | Count
===============
A | 1
B | 4
C | 2
Wanted result
Article
===============
A
B
B
B
B
C
C
Any hints or samples, please?
You could use:
SELECT m.Article
FROM mytable m
CROSS APPLY (VALUES (1),(2),(3),(4),(5),(6),(7),(8),(9),(10)) AS s(n)
WHERE s.n <= m.[Count];
LiveDemo
Note: CROSS APLLY with any tally table. Here values up to 10.
Related: What is the best way to create and populate a numbers table?
You could also use a recursive CTE which works with numbers > 10 (here up to 1000):
With NumberSequence( Number ) as
(
Select 0 as Number
union all
Select Number + 1
from NumberSequence
where Number BETWEEN 0 AND 1000
)
SELECT Article
FROM ArticleCounts
CROSS APPLY NumberSequence
WHERE Number BETWEEN 1 AND [Count]
ORDER BY Article
Option (MaxRecursion 0)
Demo
A number-table will certainly be the best option.
http://sqlperformance.com/2013/01/t-sql-queries/generate-a-set-2
Please check following SQL script
Before executing the SELECT statement, note that I used a user function which is used to simulate a numbers table
You can find the sql codes of numbers table in SQL Server at referred tutorial
----create table myTempTbl (Article varchar(10), Count int)
--insert into myTempTbl select 'A',1
--insert into myTempTbl select 'B',4
--insert into myTempTbl select 'C',2
select t.*
from myTempTbl t
cross apply dbo.NumbersTable(1,100,1) n
where n.i <= t.Count
order by t.Article
one more CTE
with cte_t as (
select c as c, 1 as i
from mytable
group by c
union all
select t.c, ctet.i + 1
from mytable t
join cte_t ctet
on ctet.c = t.c
and ctet.i < t.i
)
select cte_t.c
from cte_t
order by cte_t.c
Can obtain the output using simple WHILE LOOP
DECLARE #table TABLE
(ID int ,Article varchar(5),[Count] int)
INSERT INTO #table
(ID,Article,Count)
VALUES
(1,'A',1),(2,'B',4),(3,'C',2)
DECLARE #temp TABLE
(Article varchar(5))
DECLARE #Cnt1 INT
DECLARE #Cnt2 INT
DECLARE #Check INT
DECLARE #max INT
SET #max =0
SET #Cnt1 = (SELECT Count(Article) FROM #table)
WHILE (#max < #Cnt1)
BEGIN
SET #max = #max +1
SET #Cnt2 = (SELECT [Count] FROM #table WHERE ID =#max)
SET #Check =(SELECT [Count] FROM #table WHERE ID =#max)
WHILE (#Cnt2 > 0)
BEGIN
INSERT INTO #temp
SELECT Article FROM #table WHERE [Count] =#Check
SET #Cnt2 = #Cnt2 -1
END
END
SELECT * FROM #temp
I have problem when I use my query bellow to have a looping inside the cursor.
data in table1 will be like this:
id | data
----|---------
A | 4
B | 2
C | 5
the result in table2 should be like this:
id | data
----|---------
A | 1
A | 1
A | 1
A | 1
B | 1
B | 1
C | 1
C | 1
C | 1
C | 1
C | 1
I have SQL query with cursor like this:
DECLARE #table2 table ( id VARCHAR(500), data INTEGER)
DECLARE Cur CURSOR FOR
SELECT id, data FROM table1
OPEN Cur
WHILE ( ##FETCH_STATUS = 0 )
BEGIN
DECLARE #LoopNum INTEGER
DECLARE #tempID VARCHAR(255)
DECLARE #tempDATA INTEGER
FETCH NEXT FROM Cur INTO #tempID, #tempDATA
set #LoopNum = 0
WHILE #LoopNum < #tempDATA
BEGIN
INSERT INTO table2 (id, data)
VALUES( #tempID, 1)
SET #LoopNum = #LoopNum + 1
END
END
CLOSE Cur
DEALLOCATE Cur
SELECT * FROM table2
but the query didn't work. is there something wrong with my query?
Thank you.
Use this query to the expected result.
CREATE TABLE #test
(id CHAR(1),data INT)
INSERT #test VALUES ('A',4)
INSERT #test VALUES('B',2)
INSERT #test VALUES('C',5);
SELECT s.id, 1 AS data
FROM #test s
INNER JOIN
master.dbo.spt_values t ON t.type='P'
AND t.number BETWEEN 1 AND s.data
Note: Refer this Why (and how) to split column using master..spt_values?
You actually don't need a loop
IF OBJECT_ID('TEMPDB..#TEMP') IS NOT NULL
DROP TABLE #TEMP
SELECT 'A' AS ID, 4 AS DATA
INTO #TEMP UNION
SELECT 'B', 2 UNION
SELECT 'C', 5
;WITH CTE AS
(
SELECT 1 AS NUMBER
UNION ALL
SELECT NUMBER + 1
FROM CTE
WHERE NUMBER < 100
)
SELECT T.ID, 1
FROM CTE C
INNER JOIN #TEMP T
ON C.NUMBER <= T.DATA
ORDER BY T.ID
Carefull that if you want ot generate a large set of numbers in the CTE it may become slower.
Use a Recursive CTE which will help you to loop through the records.
CREATE TABLE #test
(id CHAR(1),data INT)
INSERT #test
VALUES ('A',4),('B',2),('C',5);
WITH cte
AS (SELECT 1 AS da,id,data
FROM #test a
UNION ALL
SELECT da + 1,id,data
FROM cte a
WHERE da < (SELECT data
FROM #test b
WHERE a.id = b.id))
SELECT id,
1 AS data
FROM cte
ORDER BY id
i used two loops
1. for each row
2. for number for duplicate insert
SET NOCOUNT on;
DECLARE #t table(row int IDENTITY(1,1),id varchar(10),data int)
INSERT INTO #t
SELECT * from xyz
DECLARE #x table(id varchar(10),data int) --table to hold the new data
DECLARE #i int=(SELECT count (*) from xyz) --number of rows main table
DECLARE #y int --number of duplicate
DECLARE #p int=1 --number of rows
WHILE #i!=0 --loop until last row of main table
BEGIN
SET #y=(SELECT data FROM #t WHERE row=#p) --set #y for number of 'row duplicate'
WHILE #y!=0
BEGIN
INSERT INTO #x
SELECT id,1
FROM #t
WHERE row=#p
SET #y=#y-1
END
SET #p=#p+1
SET #i=#i-1
END
SELECT * FROM #x
Let say I have a table:
ColumnA ColumnB
---------------------------------
1 10.75
4 1234.30
6 2000.99
How can I write a SELECT query that will result in the following:
ColumnA ColumnB
---------------------------------
1 10.75
2 0.00
3 0.00
4 1234.30
5 0.00
6 2000.99
You can use a CTE to create a list of numbers from 1 to the maximum value in your table:
; with numbers as
(
select max(ColumnA) as nr
from YourTable
union all
select nr - 1
from numbers
where nr > 1
)
select nr.nr as ColumnA
, yt.ColumnB
from numbers nr
left join
YourTable yt
on nr.nr = yt.ColumnA
order by
nr.nr
option (maxrecursion 0)
See it working at SQL Fiddle.
Please try:
declare #min int, #max int
select #min=MIN(ColumnA), #max=MAX(ColumnA) from tbl
select
distinct number ColumnA,
isnull(b.ColumnB, 0) ColumnB
from
master.dbo.spt_values a left join tbl b on a.number=b.ColumnA
where number between #min and #max
Create a TallyTable (or NumbersTable) - see this question: What is the best way to create and populate a numbers table?
With that table create an insert statement:
INSERT INTO YourTable (ColumnA, ColumnB)
SELECT Number FROM NumberTable
WHERE
NOT EXISTS (SELECT 1 FROM YourTable WHERE NumberTable.Number = YourTable.ColumnA)
-- Adjust this value or calculate it with a query to the maximum of the source table
AND NumberTable.Number < 230130
DECLARE #t TABLE (ID INT,Val DECIMAL(10,2))
INSERT INTO #t (ID,Val) VALUES (1,10.75)
INSERT INTO #t (ID,Val) VALUES (4,6.75)
INSERT INTO #t (ID,Val) VALUES (7,4.75)
declare #MinNo int
declare #MaxNo int
declare #IncrementStep int
set #MinNo = 1
set #MaxNo = 10
set #IncrementStep = 1
;with C as
(
select #MinNo as Num
union all
select Num + #IncrementStep
from C
where Num < #MaxNo
)
select Num,
CASE WHEN Val IS NOT NULL THEN Val ELSE 0.00 END AS NUMBER
from C
LEFT JOIN #t t
ON t.ID = c.Num
You could use a number-table or following trick to generate a sequence which you can LEFT OUTER JOIN with your table. I assume you want to determine the boundaries dynamically:
WITH Seq AS
(
SELECT TOP ((SELECT Max(ColumnA)FROM Table1) - (SELECT Min(ColumnA) FROM Table1) + 1)
Num = (SELECT Min(ColumnA) FROM Table1)+ Row_number() OVER (ORDER BY [object_id]) -1
FROM sys.all_objects)
SELECT ColumnA = Seq.Num,
ColumnB = COALESCE(t.ColumnB ,0.00)
FROM Seq
LEFT OUTER JOIN Table1 t
ON Seq.Num = t.ColumnA
Demo with your sample.
Worth reading: http://www.sqlperformance.com/2013/01/t-sql-queries/generate-a-set-1
I have my collect of table functions like these.
create function dbo.GetNumbers(#Start int, #End int)
returns #Items table
(
Item int
)
as
begin
while (#Start <= #End)
begin
insert into #Items
values (#Start)
set #Start = #Start + 1
end
return
end
Then I can use it to left join to my data table and every value will be there.
declare #min int, #max int
set #min = 10
set #max = 20
select gn.Item
from dbo.GetNumbers(#min, #max) gn
I have similar table functions for date ranges, times, timezones, etc.
I am completely new to stored procedure. This time, I need to create a stored procedure in MS SQL.
Let's say I have the following table.
Table name: ListOfProducts
--------------------------
SomeID, ProductID
34, 4
35, 8
35, 11
How do I pass in a SomeID. Use this SomeID to select a recordset from table, ListOfProducts. Then loop through this record set.
Let's say I pass in SomeID = 35.
So, the record set will return 2 records with SomeID 35. In the loop, I will get ProductID 8 and 11, which will be used to do another select from another table.
The stored procedure should return the results from the 2nd select.
How can I do this in MS SQL stored procedure?
Sorry, for this newbie question. Thanks for any help.
If you want looping through the records. You can do like:
--Container to Insert Id which are to be iterated
Declare #temp1 Table
(
tempId int
)
--Container to Insert records in the inner select for final output
Declare #FinalTable Table
(
Id int,
ProductId int
)
Insert into #temp1
Select Distinct SomeId From YourTable
-- Keep track of #temp1 record processing
Declare #Id int
While((Select Count(*) From #temp1)>0)
Begin
Set #Id=(Select Top 1 tempId From #temp1)
Insert Into #FinalTable
Select SomeId,ProductId From ListOfProducts Where Id=#Id
Delete #temp1 Where tempId=#Id
End
Select * From #FinalTable
There is probably no point in writing an explicit loop if you don't need to preform some action on the products that can't be done on the whole set. SQL Server can handle stuff like this much better on its own. I don't know what your tables look like, but you should try something that looks more like this.
CREATE PROC dbo.yourProcName
#SomeID int
AS
BEGIN
SELECT
P.ProductId,
P.ProductName
FROM
Product P
JOIN
ListOfProducts LOP
ON LOP.ProductId = P.ProductId
WHERE
LOP.SomeId = #SomeID
END
I had to do something similar in order to extract hours from a select resultset start/end times and then create a new table iterating each hour.
DECLARE #tCalendar TABLE
(
RequestedFor VARCHAR(50),
MeetingType VARCHAR(50),
RoomName VARCHAR(MAX),
StartTime DATETIME,
EndTime DATETIME
)
INSERT INTO #tCalendar(RequestedFor,MeetingType,RoomName,StartTime,EndTime)
SELECT req as requestedfor
,meet as meetingtype
,room as rooms
,start as starttime
,end as endtime
--,u.datetime2 as endtime
FROM mytable
DECLARE #tCalendarHours TABLE
(
RequestedFor VARCHAR(50),
MeetingType VARCHAR(50),
RoomName VARCHAR(50),
Hour INT
)
DECLARE #StartHour INT,#EndHour INT, #StartTime DATETIME, #EndTime DATETIME
WHILE ((SELECT COUNT(*) FROM #tCalendar) > 0)
BEGIN
SET #StartTime = (SELECT TOP 1 StartTime FROM #tCalendar)
SET #EndTime = (SELECT TOP 1 EndTime FROM #tCalendar)
SET #StartHour = (SELECT TOP 1 DATEPART(HOUR,DATEADD(HOUR,0,StartTime)) FROM #tCalendar)
SET #EndHour = (SELECT TOP 1 DATEPART(HOUR,DATEADD(HOUR,0,EndTime)) FROM #tCalendar)
WHILE #StartHour <= #EndHour
BEGIN
INSERT INTO #tCalendarHours
SELECT RequestedFor,MeetingType,RoomName,#StartHour FROM #tCalendar WHERE StartTime = #StartTime AND EndTime = #EndTime
SET #StartHour = #StartHour + 1
END
DELETE #tCalendar WHERE StartTime = #StartTime AND EndTime = #EndTime
END
Do something like this:
Declare #ID int
SET #ID = 35
SELECT
p.SomeID
,p.ProductID
FROM ListOfProducts p
WHERE p.SomeID = #ID
-----------------------
--Or if you have to join to get it
Declare #ID int
SET #ID = 35
SELECT
c.SomeID
,p.ProductID
,p.ProductName
FROM ListOfProducts p
INNER JOIN categories c on p.ProductID = c.SomeID
WHERE p.SomeID = #ID
You can use option with WHILE loop and BREAK/CONTINUE keywords
CREATE PROC dbo.yourProcName
#SomeID int
AS
BEGIN
IF OBJECT_ID('tempdb.dbo.#resultTable') IS NOT NULL DROP TABLE dbo.#resultTable
CREATE TABLE dbo.#resultTable
(Col1 int, Col2 int)
DECLARE #ProductID int = 0
WHILE(1=1)
BEGIN
SELECT #ProductID = MIN(ProductID)
FROM ListOfProducts
WHERE SomeID = #SomeID AND ProductID > #ProductID
IF #ProductID IS NULL
BREAK
ELSE
INSERT dbo.#resultTable
SELECT Col1, Col2
FROM dbo.yourSearchTable
WHERE ProductID = #ProductID
CONTINUE
END
SELECT *
FROM dbo.#resultTable
END
Demo on SQLFiddle
I have column looks like below
SID101
SID102
SID103
SID105
SID107
In the above criteria i need to find missed SID numbers. SID104 and SID 106 are missed while ordering.
How can i find the missed id numbers.Could any one help me finding it.
Thanks in advance.
If your table contains gaps with length more than 1 item, you can use this query:
declare #t table(s varchar(20))
insert #t values ('SID101'),('SID102'),('SID103'),('SID105'),('SID108');
with cte as
(
select substring(t.s, 4, len(t.s)) [i]
from #t t
)
select 'SID' + cast(m.number as varchar(20))
from master..spt_values m
left join cte c on c.i = m.number
where [Type] = 'P'
and m.number >= (select min(i) from cte)
and m.number <= (select max(i) from cte)
and c.i is null
Output:
-----------------------
SID104
SID106
SID107
Something like this should work:
DECLARE #i INT;
SET #i = 100;
CREATE TABLE #idsToCheck (checkId varchar(100));
WHILE (#i < 200)
BEGIN
INSERT INTO #idsToCheck VALUES ('SID' + CONVERT(varchar(100), #i));
SET #i = #i + 1;
END
SELECT * FROM #idsToCheck itc
LEFT OUTER JOIN MainTable mt ON itc.checkId = mt.realId
WHERE mt.realId = NULL
DROP TABLE #idsToCheck
... where MainTable is your table containing the SID101, SID102, etc. column values, and MainTable.realId is the column containing those IDs. Modify the #i initial value and number in the while loop condition based on which SIDs you want to check from/to.
It's difficult. With
SELECT COUNT(*),MAX(CAST(REPLACE(y.name,'SID','') AS INT)) AS col_max FROM
sys.objects x INNER JOIN sys.columns y ON x.object_id=y.object_id
WHERE x.name='<TABLE_NAME>'
you should know, how much columns are missing (i.e. COUNT(*) is 5 and col_max is 107)
When you have a table, which contains only one column with all possible IDs from 1 to max (i.e. 100,101,102,103,104,...,132) then you could do
SELECT * FROM (
SELECT CAST(REPLACE(y.name,'SID','') AS INT) AS col_id FROM
sys.objects x INNER JOIN sys.columns y ON x.object_id=y.object_id
WHERE x.name='<TABLE_NAME>'
) a
RIGHT JOIN <TABLE_IDS> b ON a.col_id=b.id
WHERE a.col_id IS NULL AND b.id<=(
SELECT MAX(CAST(REPLACE(y.name,'SID','') AS INT)) AS col_max FROM
sys.objects x INNER JOIN sys.columns y ON x.object_id=y.object_id
WHERE x.name='<TABLE_NAME>'
)
EDIT: sorry, I've seen just now, that these values aren't column names, but values. My solution will find missing column names
Declare #St int
declare #end int
set #st = CAST( (select RIGHT( max(data),4) from orderno)as int)
set #end = CAST( (select RIGHT( min(data),4) from orderno)as int)
create table #temp(data int)
while(#St <= #end )
begin
insert into #temp values(#St)
set #St = #St +1
end
select * from orderno
select * from #temp
select data from #temp where data not in (select cast(RIGHT(data,4))
declare #t table(s varchar(20))
insert #t values ('SID101'),('SID102'),('SID103'),('SID105'),('SID107');
with cte as
(
select substring(t.s, 4, len(t.s)) [i]
from #t t
)
select 'SID' + cast(t1.i + 1 as varchar(20))
from cte t1
join cte t2 on t2.i > t1.i
and not exists(
select 1
from cte c3
where c3.i > t1.i and c3.i < t2.i
)
where t2.i <> t1.i + 1
Output:
-----------------------
SID104
SID106