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I'm trying to sum some columns by id. But I'm retrieving 1 raw.
For Example
Id | C1| C2|
---------------------------------
1 | 2 | 1 |
2 | 5 | 4 |
3 | 3 | 1 |
4 | 5 | 2 |
Result that I trying to get:
Id |Total
---------------------------------
1 | 3 |
2 | 9 |
3 | 4 |
4 | 7 |
How can I combine columns into one?
You just need addition operation + as follows:
select id, c1+c2 as total
from your_table
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I have next problem.
There is a table with four columns:
|ID | X | Y | VAL |
|:--|:--:|:--:|----:|
|1 | 1 | 1 | 1110|
|2 | 1 | 2 | 1720|
|3 | 1 | 3 | 2330|
|4 | 1 | 4 | 2940|
|5 | 1 | 5 | 3550|
...
When user enter some value in text field e.g. 2370 i need function to find is there exact match in VAL field and if not to find very first bigger than 2370 (2940) and return ID value.
In some other language I can do it trough dictionaries and so one but in VBA I simply don't have idea.
Any idea or help will be appreciated.
You can use a query to get this answer, using TOP 1 to just return 1 record:
SELECT TOP 1 tblData.ID, tblData.VAL
FROM tblData
WHERE (((tblData.VAL)>=2370))
ORDER BY tblData.VAL ASC;
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i have two tables. users and accounts.
accounts table :-
id | accountName | userId
--------------------
1 | natt | 1
2 | kelly | 2
3 | john | 3
users table :-
id | username |
--------------------
1 | natt#xyz.com |
2 | kelly#xyz.com |
3 | john#xyz.com |
4 | randy#xyz.com |
5 | jamie#xyz.com |
expected output: -
userId |
---------
4 |
5 |
as you can see id of users table act as foreign key in accounts table.
I want to fetch every user that does not have a account associated with it(4,5 in my example). i can do it via IN or NOT IN but thats not the fastest way. can some tell me the fastes way to do this? im using postgres.
SELECT T.ID,T.USERNAME
FROM USERS T
WHERE NOT EXISTS
(
SELECT 1 FROM ACCOUNTS A WHERE A.USERID=T.ID
)
You can try NOT EXISTS
SELECT U.userId FROM users U
LEFT OUTER JOIN accounts A ON U.id = A.userId
WHERE A.id IS NULL
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How to insert parent table primary keys ids into Child table using foreign key references in sql server?
As your question is not clear, this answer still can be edited according to the information you provide.
The only thing I can imagine you are trying to do is:
UPDATE Child
SET ParentID = CASE WHEN ChildID IN (1, 2) THEN 1 ELSE 2 END;
SELECT *
FROM Child;
Which will return:
+---------+-----------+----------+
| ChildID | ChildName | ParentID |
+---------+-----------+----------+
| 1 | CollPad | 1 |
| 2 | MicroMax | 1 |
| 3 | Dell | 2 |
| 4 | Mac | 2 |
+---------+-----------+----------+
If this is not the case, please edit your question to include more information and description to the issue you are trying to acheive.
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I have following registration table
| EMP_ID | START_DATE | END_DATE | PNUM |
| 1 | 2014-10-20 | 2014-10-25| 10 |
| 2 | 2014-10-20 | 2014-10-30| 30 |
And i want following result in view
| START_DATE | END_DATE | TOTALNUM |
| 2014-10-20 | 2014-10-25| 40 |
| 2014-10-20 | 2014-10-30| 40 |
And i have tried to create view with sum query but no success .
create view EMP
as
select START_DATE ,END_DATE,(select SUM(PNUM) from s) TOTALNUM
from s
group by [START_DATE],END_DATE
Assuming that there is no grouping but just selecting every row and show it's start & end date and the sum of PNUM of all the rows:
SELECT START_DATE, END_DATE, SUM(PNUM) FROM TableX
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so I have 3 tables
table 1: team
| team_id | name |
-----------------------
| 1 | alpha |
| 2 | beta |
| 3 | gamma |
table 2: buildings
| building_id | name |
---------------------------
| 1 | Baxter |
| 2 | LexCorp |
table 3: team location
| team_id | building_id |
-------------------------
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
What I need now is an sql query that will list the names of the teams located in the baxter building and I cant for the life of me even think where to begin on this one, im quite new to SQL
try this one
SELECT team.name FROM team_location
INNER JOIN buildings ON buildings.building_id = team_location.building_id
INNER JOIN team ON team.team_id = team_location.team_id
WHERE buildings.name = 'Baxter'
SELECT t.NAME
FROM team as t
INNER JOIN teamLocation AS tl ON t.team_id=tl.team_id
INNER JOIN buildings As b ON tl.building_id=b.building_id
WHERE b.name='Baxter'
Please check this sql fiddle
http://sqlfiddle.com/#!6/45e2e/1