I am trying to create a custom interface for a system that tracks tickets.
I have got tickets in a table of the form:
+----------------------+
| Section | Row | Seat |
+----------------------+
| 15 | A | 100 |
| 15 | A | 102 |
| 15 | A | 103 |
| 15 | A | 110 |
| 15 | A | 111 |
| 15 | B | 102 |
| 15 | B | 103 |
| 15 | B | 104 |
| 15 | C | 99 |
| 15 | C | 100 |
| 15 | C | 101 |
| 15 | C | 102 |
| 15 | C | 103 |
| 15 | C | 104 |
+----------------------+
I am trying to display the ticket 'blocks' where seats behind each other are marked as such. i.e. I'd like to be able to display:
+------------------------------------------------+
| Section | Row | Seat Range | Overlaps Previous |
+------------------------------------------------+
| 15 | A | 100 - 103 | No |
| 15 | B | 102 - 104 | Yes |
| 15 | C | 99 - 104 | Yes |
| 15 | A | 110 - 111 | No |
+------------------------------------------------+
Any thoughts?
You could have an additional relation that assignes all neighbouring seats to a given one. This will then also work better than any soly numerical scheme for any sort of separation of your seats. And you could allow for a neighbourhood across rows. From there you could then iteratively define any block of free seats.
If this is about supporting a cashier, I tend to think I would not solely address that in the database but seek for an integration with the GUI to identify the blocks via some backtracking upon a click on a first free seat.
Related
I have a two datasets coming from 2 sources and i have to compare and find the mismatches. One from excel and other from Datawarehouse.
From excel Source_Excel
+-----+-------+------------+----------+
| id | name | City_Scope | flag |
+-----+-------+------------+----------+
| 101 | Plate | NY|TN | Ready |
| 102 | Nut | NY|TN | Sold |
| 103 | Ring | TN|MC | Planning |
| 104 | Glass | NY|TN|MC | Ready |
| 105 | Bolt | MC | Expired |
+-----+-------+------------+----------+
From DW Source_DW
+-----+-------+------+----------+
| id | name | City | flag |
+-----+-------+------+----------+
| 101 | Plate | NY | Ready |
| 101 | Plate | TN | Ready |
| 102 | Nut | TN | Expired |
| 103 | Ring | MC | Planning |
| 104 | Glass | MC | Ready |
| 104 | Glass | NY | Ready |
| 105 | Bolt | MC | Expired |
+-----+-------+------+----------+
Unfortunately Data from excel comes with separator for one column. So i have to use DelimitedSplit8K function to split that into individual rows. so i got the below output after splitting the excel source data.
+-----+-------+------+----------+
| id | name | item | flag |
+-----+-------+------+----------+
| 101 | Plate | NY | Ready |
| 101 | Plate | TN | Ready |
| 102 | Nut | NY | Sold |
| 102 | Nut | TN | Sold |
| 103 | Ring | TN | Planning |
| 103 | Ring | MC | Planning |
| 104 | Glass | NY | Ready |
| 104 | Glass | TN | Ready |
| 104 | Glass | MC | Ready |
| 105 | Bolt | MC | Expired |
+-----+-------+------+----------+
Now my expected output is something like this.
+-----+----------+---------------+--------------+
| ID | Result | Flag_mismatch | City_Missing |
+-----+----------+---------------+--------------+
| 101 | No_Error | | |
| 102 | Error | Yes | Yes |
| 103 | Error | No | Yes |
| 104 | Error | Yes | No |
| 105 | No_Error | | |
+-----+----------+---------------+--------------+
Logic:
I have to find if there are any mismatches in flag values.
After splitting if there are any city missing, then that should be reported.
Assume that there wont be any Name and city mismatches.
As a intial step, I'm trying to get the Mismatch rows and I have tried below query. It is not giving me any output. Please suggest where am going wrong.Check Fiddle Here
select a.id,a.name,split.item,a.flag from source_excel a
CROSS APPLY dbo.DelimitedSplit8k(a.city_scope,'|') split
where not exists (
select a.id,split.item
from source_excel a
join source_dw b
on a.id=b.id and a.name=b.name and a.flag=b.flag and split.item=b.city
)
Update
I have tried and got close to the answers with the help of temporary tables. Updated Fiddle . But not sure how to do without temp tables
I'm quite new to SQL - hope you can help:
I have several tables that all have 3 columns in common: ObjNo, Date(year-month), Product.
Each table has 1 other column, that represents an economic value (sales, count, netsales, plan ..)
I need to join all tables on the 3 common columns giving. The outcome must have one row for each existing combination of the 3 common columns. Not every combination exists in every table.
If I do full outer joins, I get ObjNo, Date, etc. for each table, but only need them once.
How can I achieve this?
+--------------+-------+--------+---------+-----------+
| tblCount | | | | |
+--------------+-------+--------+---------+-----------+
| | ObjNo | Date | Product | count |
| | 1 | 201601 | Snacks | 22 |
| | 2 | 201602 | Coffee | 23 |
| | 4 | 201605 | Tea | 30 |
| | | | | |
| tblSalesPlan | | | | |
| | ObjNo | Date | Product | salesplan |
| | 1 | 201601 | Beer | 2000 |
| | 2 | 201602 | Sancks | 2000 |
| | 5 | 201605 | Tea | 2000 |
| | | | | |
| | | | | |
| tblSales | | | | |
| | ObjNo | Date | Product | Sales |
| | 1 | 201601 | Beer | 1000 |
| | 2 | 201602 | Coffee | 2000 |
| | 3 | 201603 | Tea | 3000 |
+--------------+-------+--------+---------+-----------+
Thx
Devon
It sounds like you're using SELECT * FROM... which is giving you every field from every table. You probably only want to get the values from one table, so you should be explicit about which fields you want to include in the results.
If you're not sure which table is going to have a record for each case (i.e. there is not guaranteed to be a record in any particular table) you can use the COALESCE function to get the first non-null value in each case.
SELECT COALESCE(tbl1.ObjNo, tbl2.ObjNo, tbl3.ObjNo) AS ObjNo, ....
tbl1.Sales, tbl2.Count, tbl3.Netsales
I have an ACTIVE_TRANSPORTATION table:
+--------+----------+--------+
| ATN_ID | TYPE | LENGTH |
+--------+----------+--------+
| 1 | SIDEWALK | 20.6 |
| 2 | SIDEWALK | 30.1 |
| 3 | TRAIL | 15.9 |
| 4 | TRAIL | 40.4 |
| 5 | SIDEWALK | 35.2 |
| 6 | TRAIL | 50.5 |
+--------+----------+--------+
It is related to an INSPECTION table via the ATN_ID:
+---------+--------+------------------+
| INSP_ID | ATN_ID | LENGTH_INSPECTED |
+---------+--------+------------------+
| 101 | 2 | 15.2 |
| 102 | 3 | 5.4 |
| 103 | 5 | 15.9 |
| 104 | 6 | 20.1 |
+---------+--------+------------------+
I want to summarize the information like this:
+----------+--------+-------------------+
| TYPE | LENGTH | PERCENT_INSPECTED |
+----------+--------+-------------------+
| SIDEWALK | 85.9 | 36% |
| TRAIL | 106.8 | 23% |
+----------+--------+-------------------+
How can I do this within a single query?
Here is the updated answer using ACCESS 2010. Note that LENGTH is reserved in ACCESS, so it needs to be changed to LENGTH_
SELECT
TYPE,
SUM(LENGTH) as LENGTH_,
SUM(IIF(ISNULL(LENGTH_INSPECTED),0, LENGTH_INSPECTED))/SUM(LENGTH) as PERCENT_INSPECTED
FROM
ACTIVE_TRANSPORTATION A
LEFT JOIN INSPECTION B
ON A.ATN_ID = B.ATN_ID
GROUP BY TYPE
Here is the answer using T-SQL in SQL SERVER 2014 I had originally
SELECT SUM(LENGTH) as LENGTH,
SUM(ISNULL(LENGTH_INSPECTED,0))/SUM(LENGTH) as PERCENT_INSPECTED,
TYPE
FROM
ACTIVE_TRANSPORTATION A
LEFT JOIN INSPECTION B
ON A.ATN_ID = B.ATN_ID
GROUP BY TYPE
Let me know if you need it to be converted to percent, rounded, etc, but I'm guessing that part is easy for you.
I have a reference table as such in Sheet2 of my workbook
|Score 1| | |Score 2 | | |
----------------------------------------------------------
| name | min | max | target | min | max | target |
----------------------------------------------------------
| jeff | 30 | 40 | 35 | 45 | 55 | 50 |
----------------------------------------------------------
| steve | 35 | 45 | 40 | 45 | 65 | 55 |
then in Sheet1 I have a list of scores for each name as such
| jeff | 1 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 2 | | | | steve | 2 | | |
------------------------------------------------------------
| jeff | 2 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 3 | | | | steve | 3 | | |
------------------------------------------------------------
| jeff | 1 | | | | steve | 2 | | |
------------------------------------------------------------
I am aware of simple lookups and offsetting values but I can't think of a way to do multiple references on different levels... Is there a way to in Sheet1 next to the scores have a function that looks up the score, then who the score is for, and then prints the corresponding min max and target values for that person with that score.
So if it sees 1 and then jeff, it returns 30 | 40 | 35 in the next 3 boxes. I would do this manually but the list is very long and is populated daily by an existing macro.
Use VLOOKUP with the name (jeff) and take the index (1) to calculate the column to take.
Ok, so i'm trying to write a complex query (at least complex to me) and need some pro help. This is my database setup:
Table: MakeList
| MakeListId | Make |
| 1 | Acura |
| 2 | Chevy |
| 3 | Pontiac |
| 4 | Scion |
| 5 | Toyota |
Table: CustomerMake
| CustomerMakeId | CustomerId | _Descriptor |
| 1 | 123 | Acura |
| 2 | 124 | Chevy |
| 3 | 125 | Pontiac |
| 4 | 126 | Scion |
| 5 | 127 | Toyota |
| 6 | 128 | Acura |
| 7 | 129 | Chevy |
| 8 | 130 | Pontiac |
| 9 | 131 | Scion |
| 10 | 132 | Toyota |
Table: Customer
| CustomerId | StatusId |
| 123 | 1 |
| 124 | 1 |
| 125 | 1 |
| 126 | 2 |
| 127 | 1 |
| 128 | 1 |
| 129 | 2 |
| 130 | 1 |
| 131 | 1 |
| 132 | 1 |
What i am trying to end up with is this...
Desired Result Set:
| Make | CustomerId|
| Acura | 123 |
| Chevy | 124 |
| Pontiac | 125 |
| Scion | 131 |
| Toyota | 127 |
I am wanting a list of unique Makes with one active (StatusId = 1) CustomerId to go with it. I'm assuming i'll have to do some GROUP BYs and JOINS but i haven't been able to figure it out. Any help would be greatly appreciated. Let me know if i haven't given enough info for my question. Thanks!
UPDATE: The script doesn't have to be performant - it will be used one time for testing purposes.
Something like this:
select cm._Descriptor,
min(cu.customerid)
from CustomerMake cm
join Customer cu on cuo.CustomerId = cm.CustomerId and cu.StatusId = 1
group by cm._Descriptor
I left out the MakeList table as it seems unnecessary because you are storing the full make name as _Descriptorin the CustomerMake table anyway (so the question is what is the MakeList table for? Why don't you store a FK to it in the CustomerMake table?)
You want to
(a) join the customer and customermake tables
(b) filter on customer.statusid
(c) group by customermake._descriptor
Depending on your RDBMS, you may need to explicitly apply a group function to customer.customerid to include it in the select list. Since you don't care which particular customerid is displayed, you could use MIN or MAX to just pick an essentially arbitrary value.