The first column of a table contains some Ids and the values in the other columns are the numbers corresponded to those Ids. Considering some special numbers, we want to select the rows that this special numbers are among the corresponded numbers to Ids. For example, let we have the following table and the special numbers are 3,5. We want to select the rows in which 2,5 are among the columns except Id:
| Id | corresponded numbers
|----|----------------------
| 1 | 2 | 3 | 5 |
| 2 | 1 | 5 |
| 3 | 1 | 2 | 4 | 5 | 7 |
| 4 | 3 | 5 | 6 |
Therefore, we want to have the following table as the result:
| Id | corresponded numbers
|----|----------------------
| 1 | 2 | 3 | 5 |
| 3 | 1 | 2 | 4 | 5 | 7 |
Would you please introduce me a function in Excel or a query in SQL to do the above selection?
SELECT id,
[corresponded numbers]
FROM TableName
WHERE (charIndex('2', [corresponded numbers]) > 0
AND charIndex('5', [corresponded numbers]) > 0)
Related
I want to group the rows on the basis of a specific condition.
The table structure is something like this
EmpID | EmpName | TaskId | A_Shift_Status | B_Shift_Status | C_Shift_Status | D_Shift_Status
1 | John | 1 | 1 | null | 2 | 1
1 | John | 2 | 1 | null | 1 | 1
2 | Mike | 3 | 1 | 1 | 2 | 1
2 | Mike | 4 | null | 1 | null | 1
3 | Steve | 5 | null | 1 | 2 | 1
3 | Steve | 6 | 1 | null | 2 | 1
The criteria will be
Done 1
Pending 2
NA 3
The expected output is to group the employees by task and the status will be on the following condition
if ALL tasks are done by any employee then the status will be done
(i.e. 1)
if ANY of the tasks is incomplete then the status will be
incomplete/pending (i.e. 2)
So the desired output will be
EmpID | EmpName | A_Shift_Status | B_Shift_Status | C_Shift_Status | D_Shift_Status
1 | John | 1 | null | 2 | 1
2 | Mike | 1 | 1 | 2 | 1
3 | Steve | 1 | 1 | 2 | 1
So in other terms summary/grouping should only show complete/done (i.e. 1) when all the rows of a particular shift column of an employee have status as complete/done (i.e. 1)
Based on your data (where the criteria are 1, 2 and NULL for n/a), a simple 'group by' the employee, and MAX of the columns, should work e.g.,
SELECT
yt.EmpID,
yt.EmpName,
MAX(yt.A_Shift_Status) AS A_Shift_Status,
MAX(yt.B_Shift_Status) AS B_Shift_Status,
MAX(yt.C_Shift_Status) AS C_Shift_Status,
MAX(yt.D_Shift_Status) AS D_Shift_Status
FROM
yourtable yt
GROUP BY
yt.EmpID,
yt.EmpName;
For the shift statuses
If any of them are 2, it returns 2
otherwise if any of them are 1, it returns 1
otherwise it returns NULL
Notes re 1/2/3 (which was specified as criteria) vs 1/2/NULL (which is in the data)
It gets a little tricker if the inputs are supposed to use 1/2/3 instead of 1/2/NULL. Let us know if you are changing the inputs to reflect that.
If the input is fine as NULLs, but you need the output to have '3' for n/a (nulls), you can put an ISNULL or COALESCE around the MAX statements e.g., ISNULL(MAX(yt.A_Shift_Status), 3) AS A_Shift_Status
i need a SQL-Query to delete duplicates from a table. Lets start with my tables
rc_document: (there are more entries, this is just an example)
+----------------+-------------+----------------------+
| rc_document_id | document_id | rc_document_group_id |
+----------------+-------------+----------------------+
| 1 | 1 | 1 |
| 2 | 2 | 1 |
| 3 | 3 | 1 |
| 4 | 4 | 1 |
| 5 | 1 | 2 |
| 6 | 3 | 2 |
+----------------+-------------+----------------------+
(document_id can be exists in mulitple rc_document-group´s)
rc_document_group:
+----------------------+----------+
| rc_document_group_id | priority |
+----------------------+----------+
| 1 | 1 |
| 2 | 2 |
+----------------------+----------+
Each rc_document can be joined with the rc_document_group. In the rc_document_group is the priority for each rc_document.
I want to delete the rc_document rows with document_id which have not the highest priority in the rc_document_group. Because the document_id can be exists in multiple rc_document-group´s .. i just want to keep that one, with the highest priority.
here is my expected rc_document table after deleting duplicate document_id´s:
+----------------+-------------+----------------------+
| rc_document_id | document_id | rc_document_group_id |
+----------------+-------------+----------------------+
| 2 | 2 | 1 |
| 4 | 4 | 1 |
| 5 | 1 | 2 |
| 6 | 3 | 2 |
+----------------+-------------+----------------------+
the rc_document´s with rc_document_id 1 and 3 must be deleted, because there document_id 1 and 3 are in another rc_document_group with higher priority.
Im new in sql and i have no idea how to write these sql query ... thank for your help!!
First, you could join the two tables in order to get the corresponding priority on each row. After that, you could use the analytic function MAX() to get, for each row, the max priority within each group of document_id. At this point, you filter out the rows where the priority is not equal to the max priority in the group.
Try this query:
SELECT t.rc_document_id,
t.document_id,
t.rc_document_group_id
FROM (SELECT d.*,
g.priority,
MAX(g.priority) OVER(PARTITION BY document_id) max_priority
FROM rc_document d
INNER JOIN rc_document_group g
ON d.rc_document_group_id = g.rc_document_group_id) t
WHERE t.priority = t.max_priority
I need to map a many-to-many relationship between two flat tables. Table A contains a list of possible configurations (where each column is a question and the cell value is the answer). NULL values denote that the answer does not matter. Table B contains actual configurations with the same columns.
Ultimately, I need the final results to show which configurations are mapped between table B and A:
Example
ActualId | ConfigId
---------+---------
5 | 1
6 | 1
8 | 2
. | .
. | .
. | .
N | M
To give a simple example of the tables and data I'm working with, the first table would look like such:
Table A
--------
ConfigId | Size | Color | Cylinders | ... | ColumnN
---------+------+-------+-----------+-----+--------
1 | 3 | | 4 | ... | 5
2 | 4 | 5 | 5 | ... | 5
3 | | 5 | | ... | 5
And Table B would look like this:
Table B
-------
ActualId | Size | Color | Cylinders | ... | ColumnN
---------+------+-------+-----------+-----+--------
1 | 3 | 1 | 4 | ... | 5
2 | 3 | 8 | 4 | ... | 5
3 | 4 | 5 | 5 | ... | 5
4 | 7 | 5 | 6 | ... | 5
Since the NULL values denote that any value can work, the expected result would be:
Expected
---------
ActualId | ConfigId
---------+---------
1 | 1
2 | 1
3 | 2
3 | 3
4 | 3
I'm trying to figure out the best way to go about matching the actual data which has over a hundred columns. I know trying to check each and every column for NULL values is absolutely wrong and will not perform well. I'm really fascinated with this problem and would love some help to find the best way to tackle this.
So, this joins table a on size, color and cylinders.
The size match will be A against B:
If A.SIZE is null, the compare will B.SIZE=B.SIZE which will always return true.
If A.SIZE is not null, the compare will be A.SIZE=B.SIZE which will only be true if they match.
The matching on color and cylinders are similar.
SELECT * FROM TABLEA A
INNER JOIN TABLEB B ON ISNULL(A.SIZE, B.SIZE)=B.SIZE
AND ISNULL(A.COLOR, B.COLOR)=B.COLOR
AND ISNULL(A.CYLINDERS, B.CYLINDERS)=B.CYLINDERS
Yesterday I asked this question: SQL: How to add values according to index columns but I found out that my problem is a bit more complicated:
I have an array like this
id | value| position | relates_to_position |type
19 | 100 | 2 | NULL | 1
19 | 50 | 6 | NULL | 2
19 | 20 | 7 | 6 | 3
20 | 30 | 3 | NULL | 2
20 | 10 | 4 | 3 | 3
From this I need to create the resulting table, which adds all the lines where the relates_to_position value matches the position value, but only for lines sharing the same id!
The resulting table should be
id | value| position |type
19 | 100 | 2 | 1
19 | 70 | 6 | 2
20 | 40 | 3 | 2
I am using Oracle 11. There is only one level of recursion, meaning a line would not refer to a line which has the relates_to_pos field set.
I think the following query will do this:
select id, coalesce(relates_to_position, position) as position,
sum(value) as value, min(type) as type
from t
group by id, coalesce(relates_to_position, position);
My table looks like this:
ID | Multiple | Itemlist_ID | Inventory_ID
----------------------------------------------------------------
1 | 1 | 1 | 1
2 | 1 | 1 | 2
3 | 1 | 1 | 3
4 | 1 | 4 | 2
5 | 1 | 4 | 3
6 | 2 | 4 | 2
7 | 2 | 4 | 3
How do I retrieve records with unique combo of Multiple and Itemlist_ID? For example below:
ID | Multiple | Itemlist_ID | Inventory_ID
----------------------------------------------------------------
1 | 1 | 1 | 1
4 | 1 | 4 | 2
6 | 2 | 4 | 2
Note, this is retrieving for a View where the Inventory_ID won't be shown, so I'm not concerned whether I get back records [1,4,6] or [1,5,7] or [2,4,6]. Using a first command is fine.
You can perform a GROUP BY query in Activerecord using this syntax (replace Model with your class name):
Model.group('Multiple', 'Itemlist_ID').select('Multiple', 'Itemlist_ID')
This would retrieve all unique combinations of (Multiple, Itemlist_ID).
You could optionally add aggregate operations on columns other than the two grouped columns, such as SUM, AVG, COUNT, etc. For example, if you wanted to know how many records are in each group:
Model.group('Multiple', 'Itemlist_ID').select('Multiple', 'Itemlist_ID', 'COUNT(1) AS group_count')
This would add an attribute to the result called 'group_count' that would be the number of records contained in each group