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Hi I am trying to find duplicates with the same ID. I am not finding all of the duplicates. I would like to find distinct JOIN_FID values, and then duplicate JOIN FID values.
Here is my SQL select statements.
select OBJECTID,
Join_Count,
TARGET_FID,
JOIN_FID,
StrtConcat,
PermID,
Minutes,
FacilityID,
Shape
from
sde.gis.MFD_8_minute_response_ladder
where TARGET_FID
in (
select
JOIN_FID
from
sde.gis.MFD_8_minute_response_ladder
group by
JOIN_FID
having
COUNT(*) > 1
You're missing a closing parenthesis ()), but I assume that's a typo.
I suspect the problem may be that you're comparing two different fields:
where TARGET_FID
in (
select
JOIN_FID
Should that be:
where TARGET_FID
in (
select
TARGET_FID
or
where JOIN_FID
in (
select
JOIN_FID
?
For the query that you added ,an IN subquery can only return one value, so you need something like:
where PermID
in (
select
COUNT(1),
TARGET_FID
making sure you're comparing the right columns.
Related
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select count(*) as distinctname from
(select distinct nationalityname from dbo.profile)
Use an alias for your subqueries
select count(*) as distinctname from
(select distinct nationalityname from dbo.profile) alias_name
or make it simpler like this
select count(distinct nationalityname) from dbo.profile
Just give alias to sub-query
select count(*) as distinctname
from (select distinct nationalityname
from dbo.profile) t -- this is alias
In SQL Server, You need to give alias to sub-queries used in FROM clause.
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I am using 11g RDBMS and in one interview interviewer ask me that print 1 to 10 numbers using SQL query don't use loop if you are using PLSQL, means using select query he wants to see the result.
like Table:
1
2
3
Here are two approaches, both are SQL Server syntax, but you will find something similar for other RDBMs:
--ROW_NUMBER()
SELECT TOP 10 ROW_NUMBER() OVER(ORDER BY (SELECT NULL)) FROM sys.objects; --any table with more rows than 10 will do
--recursive CTE
WITH recursiveCounter AS
(
SELECT 1 AS Nr
UNION ALL
SELECT r.Nr+1
FROM recursiveCounter AS r
WHERE r.Nr<10
)
SELECT * FROM recursiveCounter
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Help me with a SQL query. I would get all values, like '01,02,03,20,92,93,94" values from first query, but instead of function MAX in two query. Result:in opposite b_BookNum I would to see one string:'01,02,03,20,92,93,94'
Simply take out the MAX() function and add this column in your group by clause , happy days......
SELECT [b_BookNum]
,[b_CHMAT]
,COUNT(*) iCount
FROM MPA.dbo.SCHM_Books
GROUP BY [b_BookNum] ,[b_CHMAT]
ORDER BY [b_BookNum]
EDIT
I am surprised that you have all the information you need to solve the problem and yet you are so incompetent to solve it. Anyway here is the full solution:
;WITH CTE AS (
SELECT [b_BookNum]
,COUNT(*) iCount
FROM MPA.dbo.SCHM_Books
GROUP BY [b_BookNum]
)
SELECT [b_BookNum]
,STUFF((SELECT ',' + CAST([b_CHMAT] AS VARCHAR(10))
FROM dbo.SCHM_Books
WHERE [b_BookNum] = C.[b_BookNum]
FOR XML PATH(''),TYPE)
.value('.','NVARCHAR(MAX)'),1,1,'') AS [b_CHMAT]
,iCount
FROM CTE C
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What is the meaning (result) of this SQL statement in layman's term?:
SELECT mainTable.Year FROM mainTable
UNION SELECT mainTable.Title FROM mainTable
In set theory
if A={1,2,3} and B={2,3,4,5} then A union B={1,2,3,4,5} -- No duplicates here!
where as A union all B={1,2,3,2,3,4,5} --with duplicates
similarly in sql
its written like
select * from A
union -- or union all
select * from B
SEE HERE
The UNION combines two results.
When you have two SELECT statements, all of them has a result. If those results contain equivalent number of columns (and those - the ones which are at the same position - column's datatypes are equal or compatible with eachother), you can get those results combined into one result.
The UNION will filter out the duplications. You can use UNION ALL to prevent filtering.
See this SQLFiddle demo: http://sqlfiddle.com/#!2/42569/2
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I am working on Library Management and for making a report I want to get data from 2 tables which are not interlinked i.e issueData and issueRecord.
The Record contains previous book issued data while the Data table contains only the current book issued Report.
Simply, I want to merge these two queries i.e
Select * From issueRecord where issueDate = '19/07/2013'.
Select * From issueData where issueDate = '19/07/2013'.
Please Help.
If your question was more clear we would be able to help more.
From what I understand you are trying for a union all or union. There is also a chance for cross join also, but that may not be the result you wanted.
There are answers for Union and union all, But I would suggest you to use like the below
Select 'Record', Field_1, Field_2, Field_3 From issueRecord where issueDate = '19/07/2013'
UNION
Select 'Data', Field_A, Field_B, Field_C From issueData where issueDate = '19/07/2013'
With this addition you can find which data is from which table.
In addition to this you can also use cross join
select * from issueRecord CROSS JOIN issueData
but check the data what you are getting.
Your question is not very clear but it seems like you are looking for a UNION or UNION ALL query.
Assuming that what you want is a single result set that includes record from each table, but you are not trying to combine the two tables onto a single line, the syntax would be something along the lines of:
Select Field_1, Field_2, Field_3 From issueRecord where issueDate = '19/07/2013'
UNION
Select Field_A, Field_B, Field_C From issueData where issueDate = '19/07/2013'
The type and order of the columns selected from both tables have to match. UNION will collapse identical records into one output row, just like a distinct clause, while UNION ALL will include every record from each query.