Deleting data from sql database [closed] - sql

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed last year.
Improve this question
I need to write a database query that will remove all values except 44 from the "nums" column.
nums
52
17
44
23
60
44

like this
delete from tablename where nums <> 44

Related

Counting word frequency [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 2 years ago.
Improve this question
I am trying to sum the frequency of the words cumulatively in PostgreSQL
Here's my table (example)
I need sum accumulative frequency for same words, for example the expected results is:
resize (100 + 85) = 185
trabajar (75 + 73) = 148
partir (64) = 64
How can I make the query?
you need to use GROUP BY :
SELECT
word
, SUM(frecuency)
FROM tablename
GROUP BY word

Oracle SQL Select Only 5 Digit Row in a Column [closed]

Closed. This question needs to be more focused. It is not currently accepting answers.
Want to improve this question? Update the question so it focuses on one problem only by editing this post.
Closed 2 years ago.
Improve this question
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

SQL Server 2000: how to replace a entry with only the last 2 characters [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 6 years ago.
Improve this question
I have a table in a SQL Server 2000 database with a column with several entries like 01-03, 04-05. The first 2 digits are the room number and the last two digits are the bed number.
I want to replace the 01-05, 03-07 etc. with only the bed number. So only the last two charcters have to be in the column.
How do I accomplish this?
Sample data is:
In the column [Bed] with values:
22-01
08-01
09-03
01-16
Result has to be:
01
01
03
16
RIGHT should solve your problem:
SELECT RIGHT(RTRIM(Bed), 2) FROM tbl

Select a part of a selected item in sql [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 8 years ago.
Improve this question
How can I possibly select a part of a row data in MS Sql?
ex. Charmina (Female)
All I want to select is the Female not the whole Charmina (Female)
Try this
select substring('Charmina (Female)',
charindex('(','Charmina (Female)')+1,
LEN('Charmina (Female)')-charindex('(','Charmina (Female)')-1)
or
select stuff('Charmina (Female)',1,charindex('(','Charmina (Female)')-1,'')
You may Use SUBSTRING to get sub sequences of strings
SELECT SUBSTRING( your_Raw ,start , length ) AS Alias
FROM Your_Table

Assign values to sorted result in SQL [closed]

Closed. This question needs details or clarity. It is not currently accepting answers.
Want to improve this question? Add details and clarify the problem by editing this post.
Closed 9 years ago.
Improve this question
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