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I have next table:
id value
1 2
2 4
3 2
4 2
5 3
How I can get most common (common means that the count of 2 is 3, count of 4 is 1 and count of 3 is 1, so common is 2) 'value'? in this case it is '2'?
you can use group by
select value
from the_table
group by value
order by count(*) desc
limit 1
Related
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I have a table with column name No, which have duplicate values (which is necessary). I need to add an incrementing value in another column sub_no
For Example:
No
sub_no
1
0
1
1
1
2
2
0
2
1
3
0
3
1
3
2
3
3
I have tried update and select queries.
A window function will give you the results you want:
SELECT [No], ROW_NUMBER() OVER(PARTITION BY [No] ORDER BY [No]) - 1 AS
[sub_no]
FROM <table_name>;
You can find more information on window functions in T-SQL here.
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SELECT *
FROM GNGRB.CLAIM
WHERE ZOCRECDT IS NOT NULL;
SLNO Column select only 5 digit row
Please use length function of oracle. For e.g:
select *
from table a
where length(a.column_name) = 5
In your case
SELECT *
FROM GNGRB.CLAIM
WHERE ZOCRECDT IS NOT NULL
and LENGTH(SLNO) = 5
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Need a query to check ids with multiple revisionnums
id reviionnum
1 0
2 0
1 1
3 1
2 1
The query should result
id revisionnum
3 1
Please help
If you want ids with only one revision number, you can use aggregation:
select id, min(revissionnum)
from t
group by id
having count(*) = 1;
The min() is the value if there is only one row.
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I am looking for a way to exclude a single column from being sorted using SQL select statement.
Lets say a table has 10 columns and when an ORDER BY is done on a specific column using select statement, all the 10 columns are sorted. Is it possible to exclude any specific column (say column 6) from being sorted? If so how.
**
Before
ID name
-----------
1 papaya
2 apple
3 strawberry
4 banana
Required
ID name
-----------
1 apple
2 banana
3 papaya
4 strawberry
Appreciate your help
This will generate the ids and they will be always shown in order but that won't be the actual id, you might need that as well
SELECT #a:=#a+1 id,name from tableName order by name
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I have got table like below after sorting in SQL:
M_ID
-----
2013/01
2013/02
2013/03
2013/04
2013/05
2013/06
Now I want to assign each entries a particular value like below
M_ID Days
--------------
2013/01 20
2013/02 30
2013/03 40
2013/04 50
2013/05 60
2013/06 70
So, can you please let me know how to do that in SQL Query?
Do you mean something like this (presuming sql-server)?
SELECT M_ID,
Days = (ROW_NUMBER()OVER(ORDER BY M_ID) + 1) * 10
FROM dbo.TableName
Demo