This is a hard question for me to word but I was wondering if something like this is possible using psql. The general idea is I have a field called "label" which can contain any TEXT value. I am trying to group these with unique IDs that increment when the value of label is different than in the previous row.
Input Table
| RID | Label|
| ---- | ---- |
| 1 | |
| 2 | A |
| 3 | A |
| 4 | |
| 5 | |
| 6 | B |
| 7 | B |
| 8 | B |
| 9 | A |
|10 | A |
|11 | |
|12 | |
Desired Output Table
|RID|Label|Group ID|
|---|-----|--------|
| 1 | | 1 |
| 2 | A | 2 |
| 3 | A | 2 |
| 4 | | 3 |
| 5 | | 3 |
| 6 | B | 4 |
| 7 | B | 4 |
| 8 | B | 4 |
| 9 | A | 5 |
|10 | A | 5 |
|11 | | 6 |
|12 | | 6 |
Related
I have the following sql to calculate a % total:
SELECT tblTourns_atp.ID_Ti,
Sum([FS_1]/(SELECT Sum(FSOF_1)
FROM stat_atp
WHERE stat_atp.ID_T = tblTourns_atp.ID_T)) AS S1_IP
FROM stat_atp
INNER JOIN tblTourns_atp ON stat_atp.ID_T = tblTourns_atp.ID_T
GROUP BY tblTourns_atp.ID_Ti
I'm getting the 'aggregate error' because it wants the ID_T fields either grouped or in an aggregate function. I've read loads of examples but none of them seem to apply when the offending field is the subject of 'WHERE'.
Tables and output as follows:
+----------+------+--------+--+---------------+-------+--+--------+--------+
| stat_atp | | | | tblTourns_atp | | | Output | |
+----------+------+--------+--+---------------+-------+--+--------+--------+
| ID_T | FS_1 | FSOF_1 | | ID_T | ID_Ti | | ID_Ti | S1_IP |
| 1 | 20 | 40 | | 1 | 1 | | 1 | 31.03% |
| 2 | 30 | 100 | | 2 | 1 | | 2 | 28.57% |
| 3 | 40 | 150 | | 3 | 1 | | 3 | 33.33% |
| 4 | 30 | 100 | | 4 | 2 | | | |
| 5 | 30 | 100 | | 5 | 2 | | | |
| 6 | 40 | 150 | | 6 | 2 | | | |
| 7 | 20 | 40 | | 7 | 3 | | | |
| 8 | 30 | 100 | | 8 | 3 | | | |
| 9 | 40 | 150 | | 9 | 3 | | | |
| 10 | 20 | 40 | | 10 | 3 | | | |
+----------+------+--------+--+---------------+-------+--+--------+--------+
Since you already have an inner join between the two tables, a separate subquery isn't required:
select t.id_ti, sum(s.fs_1)/sum(s.fsof_1) as pct
from tbltourns_atp t inner join stat_atp s on t.id_t = s.id_t
group by t.id_ti
I have a SQL table as following
--------------------------
| REPO | USER | FOLLOWER |
--------------------------
| A | 1 | 3 |
| A | 2 | 4 |
| A | 3 | 6 |
| B | 2 | 7 |
| B | 4 | 2 |
| C | 5 | 3 |
| C | 2 | 6 |
| C | 6 | 5 |
--------------------------
Now, I want to only those rows where USER follows another USER for
same REPO.
i.e. I want rows where elements in FOLLOWER is also in USER for same
REPO.
OUTPUT should be like...
--------------------------
| REPO | USER | FOLLOWER |
--------------------------
| A | 1 | 3 |
| B | 4 | 2 |
| C | 6 | 5 |
| C | 2 | 6 |
--------------------------
Thank You :)
One simple method uses exists:
select t.*
from t
where exists (select 1 from t t2 where t2.repo = t.repo and t2.follower = t.user);
Shouldn't the output actually be as follows, i.e. 4 rows?
--------------------------
| REPO | USER | FOLLOWER |
--------------------------
| A | 1 | 3 |
| B | 4 | 2 |
| C | 6 | 5 |
| C | 2 | 6 |
--------------------------
Is there a way, in SQL, to create an Id for 'linked groups'?
Source Table
+----+-----+
| Id | Id |
+----+-----+
| 1 | 2 |
| 1 | 3 |
| 2 | 3 |
| 4 | 5 |
+----+-----+
Desired Result Table
+----+-----+-----------+
| Id | Id | Group Id |
+----+-----+-----------+
| 1 | 2 | A |
| 1 | 3 | A |
| 2 | 3 | A |
| 4 | 5 | B |
+----+-----+-----------+
see Diagram
Please, tell me an example how to mark all the child nodes to the parent id. Only need to mark those branches whose parent has the value "need" (see example image). Using a recursive query, it is not possible to rename all the children of a particular parent...
Initial data:
+-----+----------+----------+
| id | parentid | selector |
+-----+----------+----------+
| 1 | | |
| 2 | 1 | |
| 3 | 1 | need |
| 4 | 2 | |
| 5 | 2 | need |
| 6 | 3 | |
| 7 | 5 | |
| 8 | 5 | |
| 9 | 6 | |
+-----+----------+----------+
Need data:
+-----+----------+----------+----------------+
| id | parentid | selector | parentSelector |
+-----+----------+----------+----------------+
| 1 | null | | null |
| 2 | 1 | | null |
| 3 | 1 | need | 3 |
| 4 | 2 | | null |
| 5 | 2 | need | 5 |
| 6 | 3 | | 3 |
| 7 | 5 | | 5 |
| 8 | 5 | | 5 |
| 9 | 6 | | 3 |
+-----+----------+----------+----------------+
The task is to make the grouping by those elements whose parent has the value "need". I think, I should create a column with a mark, as in the example in the table above, or are there any other options?
I use SQL Server 2012
I dont't know if it work on Sql server 2012, but i found this microsoft, i think is what you want, to make the parentSelector with condition, I use CASE (Transact-SQL).
This is another example: stackoverflow question
I'm working on a report. How do I get columns from the outside that are displaying dates to be next to a column inside the matrix that is displaying values.
For example it is setup like this:
| HiredDt | TermDt | [Type] | LicDt | MedDt |
---------------------------------------------------------------------------------
ID | [HiredDt] | [TermDt] | SUM([Count_of_Type]) | [LicDt] | [MedDt] |
---------------------------------------------------------------------------------
And looks like this:
| HiredDt | TermDt | Lic | Med | App | LicDt | MedDt |
----------------------------------------------------------------------------------------
1 | 1/31/12 | 1/31/14 | 1 | 1 | 12 | 6/1/15 | 9/1/14 |
2 | 2/19/12 | 9/18/14 | 1 | 1 | 12 | 3/2/15 | 9/1/14 |
But when I use inside grouping to match up the date next to the associated document type I get:
| HiredDt | TermDt | Lic | | | Med | | | App | | |
----------------------------------------------------------------------------------------------------------------------------
1 | 1/31/12 | 1/31/14 | 1 | 6/1/15 | | 1 | | 9/1/2014 | 12 | | |
2 | 2/19/12 | 9/18/14 | 1 | 3/2/15 | | 1 | | 9/1/2014 | 12 | | |
What I'm trying to get this:
| HiredDt | TermDt | Lic | LicDt | Med | MedDt | App |
--------------------------------------------------------------------------------------
1 | 1/31/12 | 1/31/14 | 1 | 6/1/15 | 1 | 9/1/14 | 12 |
2 | 2/19/12 | 9/18/14 | 1 | 3/2/15 | 1 | 9/1/14 | 12 |
Is this possible?
I would right-click on the cell you have labelled SUM([Count_of_Type]) and choose Insert Column - Inside Group - Right.
In that new cell I would set the expression to: = Max ( [LicDt] )