I am working on a web page that has a data grid and have a need to do
the following:
Have a column that is a drop down when the grid loads (no need to click edit)
This column is bound to a column from the data query (everything up
to this point works fine)
I know need to add more values to this drop down from another
dataset (so the user can change the value if required)
These values come from a query to another table in the database. The
values will be same for all the rows in the table, these values are
based on a master key for the complete webpage.
As an example:
table 1 has:
Mangoes $12
Apricots $13
Peaches $14
This is on the grid.
The other table has:
Prices
12
13
14
15
16
I want these values from the prices table to appear in the drop down
for table 1 in the data grid, with the current values as the selected
item.
Any ideas will help. Thanks for the help.
As far as I know,
U should better change ur table design.
If ur fruit table is concern with price id, then u can easily select the item from dropdown with current value in fruit table.
Fruit
PriceId
PriceId
Price
------------------------ --------------------
Mangoes
1
<--------------------->
1
12
Apricots
2
<--------------------->
2
13
Peaches
3
<--------------------->
3
14
then it is easier to list all price in dropdown list
and also easier to choose selected price based on PriceId from Fruit table.
Sound like little confuse? let me know, if anything u want?
Hope it works!
Related
I have an SQLite Database, two of the tables look like this:
ID Name
1 Test1
2 Test2
3 Test3
4 Test4
ID Color
1 Blue
1 White
1 Red
2 Green
2 Red
4 Black
In the first Tables, ID is unique, the second table lists colors an ID has, it can be from 0 to n colors.
Now I want to select all Names exactly once, that have one or more given color. Lets say, I want to have all names associated with blue, white and/or green. The resultset should have the IDs 1 and 2.
I am completly lost here, as I normally dont do any SQL. I am just familiar with very basic SQL. What I would do is Join the tables together, but I dont know how I do that, as ID is not unique in the second table. Also there would be the problem of IDs beeing duplicated in the resultset, if it has multiple colors that I want to select.
Thanks in advance for any help.
You don't need a join for this. Get the list of IDs from the color table in a subquery, and fetch the names from the test table with an in clause:
sqlite> select * from tests where id in
(select id from colors where name in ('Blue', 'White', 'Green'));
1|Test1
2|Test2
Duplicates don't matter in the subquery, but you could use distinct if you want that list without duplicates in other contexts.
The data set contains a column with over a 10000 cell phone numbers,it also contains some garbage values with no particular format.
How do I retain only the rows with the correct cell phone numbers
cell number ............ comment
9674544444............... a
9453453455............... c
asd..as23.....................d
as sas E2...................d
232dsasd....................,,,,,,,,,,,,,,,23,,,,,231
required table
cell number ............ comment
9674544444............... a
9453453455............... c
Like this;
df<-read.table(header=T,sep="|",text="cell number|comment
9674544444|a
9453453455|c
asd..as23|d
as sas E2|d
232dsasd|23,,,,,231")
df[grep("[0-9]{10}",df$cell.number),]
# cell.number comment
#1 9674544444 a
#2 9453453455 c
I have a data structure where I have two tables Alpha and Beta and they are one to many. For the sake of an example let's say that table alpha has a column for "State" and table B has "Colors you like" and you can pick more than one. I would like to build a report that has columns like this:
STATE TOTAL RED GREEN BLUE
Alaska 5 1 3 1
Florida 2 2 2 0
New York 10 5 8 1
The column TOTAL would be a count of the records in Alpha and as you can see due to the one to many relationship the sum of the colors can exceed the count. I suppose it could be less as well if people didn't like colors.
How would you build a report like this. I'll be using SQL Server and Reporting Services in .NET so it could either be a complex query that I just dump into a data table report or a less complex query with some counting and totaling done by the report. I just don't really know the best way to tackle this.
Since you don't know which colors are going to be the columns you should use the Matrix Control
You'll need to set up the query
SELECT
a.State,
b.ColorName,
COUNT(b.ColorID) ColorCount
FROM
alpha a
LEFT JOIN beta b
ON a.id = b.a_id
GROUP BY
a.State,
b.ColorName
Just drag state for the rows, color for the columns and ColorCount for the data (Count(ColorID) will display in the data field))
Note: The LEFT JOIN and Count(ColorID) instead of Count(*) are required if you want a 0 value to appear correctly.
If you did know the colors you could use PIVOT or the sum case technique
SELECT state SUM(CASE WHEN Color = 'RED' THEN 1 ELSE 0 END) as Red, ...
I need to show a report of same set of data with different condition.
I need to show count of users registered by grouping region, country and userType, I have used drill down feature for showing this and is working fine. Also the reported data is the count of users registered between two dates. Along with that I have to show the total users in the system using the same drill down that is total users by region, country and usertype in a separate column along with each count (count of users between two date)
so that my result will be as follwsinitialy it will be like
Region - Country - New Reg - Total Reg - User Type 1 - UserType2
+ Region1 2 10 1 5 1 5
+ Region2 3 7 2 4 1 3
and upon expanding the region it will be like
Region - Country - New Reg - Total Reg - User Type 1 - UserType2
+ Region1 2 10 1 5 1 5
country1 1 2 1 2 - -
country2 1 8 1 8 - -
+ Region2 3 7 2 4 1 3
Is there a way I can show my report like this, I have tried with two data sets one with conditional datas and other with non conditional but it didn't work, its always bing total number of regiostered users for all the total reg columns
Unless I'm mistaken, you're trying to create an expandable table, with different grouping levels? Fortunately, this can be easily done in SSRS if you know where to look. The totals on your example don't seem to match up in the user columns, so I may have misunderstood the problem.
For starters, set up your query to produce a single dataset like this:
Region Country New Reg - Total Reg - User Type 1 - User Type 2
Region1 country1 1 2 1
Region1 country2 1 8 1
Region2 country3 2 4 1 1
Region2 country4 1 3 1
Now that you've got that, you want to set up a new table with the fields "NewReg", "TotalReg", "UserType1" and "UserType2". Then right-click the table row, and go to "Add Group > Row Group > Parent Group". Select "Country" in the Group by and click okay. Then, repeat this process and select "Region". This time however, tick the "Add group header" box. This will insert another row above the original.
Now, for each of your fields ("NewReg", "TotalReg" etc), click in the new row above and select the field again. this will automaticaly add a Sum(FieldName) value into the cell. This will add together all the individual row totals and present a new, grouped by region row when you run the report.
That should give you the table you require with the data aggregated correctly, so all you need to do is manage the show/hide the detail rows on demand.
To do this, select your detail row (the original row) and right-click "> Row visibility". Set this to "Hide". Now, select the cell that contains the "Region" and take note of its ID using Properties (for now, let's assume it's called "Region"). Click back onto your detail row and look at the properties window. At the bottom you'll see a "Visibility" setting. In there, set "InitialToggleState" to False and "ToggleItem" to the name of your region group's cell (i.e. "Region").
Now all that should be left is to do the formatting etc and tidy up.
I have solved this problem by taking all the records from DB and filtering the records to collect new reg count by using an expression as following
=Sum(IIF(Fields!RegisteredOn.Value >Parameters!FromDate.Value and Fields!RegisteredOn.Value < Parameters!EndDate.Value , 1,0))
I have a problem getting the right "Price" for a product based on Effectivity date.
Example, I have 2 tables:
a. "Transaction" table --> this contains the products ordered, and
b. "Item Master" table --> this contains the product prices and effectivity dates of those prices
Inside the Trasaction table:
INVOICE_NO INVOICE_DATE PRODUCT_PKG_CODE PRODUCT_PKG_ITEM
1234 6/29/2009 ProductA ProductA-01
1234 6/29/2009 ProductA ProductA-02
1234 6/29/2009 ProductA ProductA-03
Inside the "Item_Master" table:
PRODUCT_PKG_CODE PRODUCT_PKG_ITEM PRODUCT_ITEM_PRICE EFFECTIVITY_DATE
ProductA ProductA-01 25 6/1/2009
ProductA ProductA-02 22 6/1/2009
ProductA ProductA-03 20 6/1/2009
ProductA ProductA-01 15 5/1/2009
ProductA ProductA-02 12 5/1/2009
ProductA ProductA-03 10 5/1/2009
ProductA ProductA-01 19 4/1/2009
ProductA ProductA-02 17 4/1/2009
ProductA ProductA-03 15 4/1/2009
In my report, I need to display the Invoices and Orders,
as well as the Price of the Order Item which was effective
at the time it was paid (Invoice Date).
My query looks like this (my source db is Oracle):
SELECT T.INVOICE_NO,
T.INVOICE_DATE,
T.PRODUCT_PKG_CODE,
T.PRODUCT_PKG_ITEM,
P.PRODUCT_ITEM_PRICE FROM TRANSACTION T,
ITEM_MASTER P WHERE T.PRODUCT_PKG_CODE = P.PRODUCT_PKG_CODE
AND T.PRODUCT_PKG_ITEM = P.PRODUCT_PKG_ITEM
AND P.EFFECTIVITY_DATE <= T.INVOICE_DATE
AND T.INVOICE_NO = '1234';
...which shows 2 prices for each item.
I did some other different query styles
but to no avail, so I decided
it's time to get help. :)
Thanks to any of you who can
share your knowledge. --CJ--
p.s. Sorry, my post doesn't even look right! :D
If it's returning two rows with different effective dates that are less than the invoice date, you may want to change your date join to
'AND T.INVOICE_DATE = (
select max(effectivity_date)
from item_master
where effectivity_date < t.invoice_date)'
or something like that, to only get the one price that is the most recent one before the invoice date.
Analytics is your friend. You can use the FIRST_VALUE() function, for example, to get all the product_item_prices for the given product, sort by effectivity_date (descending), and just pick the first one. You'll need a DISTINCT as well so that only one row is returned for each transaction.
SELECT DISTINCT
T.INVOICE_NO,
T.INVOICE_DATE,
T.PRODUCT_PKG_CODE,
T.PRODUCT_PKG_ITEM,
FIRST_VALUE(P.PRODUCT_ITEM_PRICE)
OVER (PARTITION BY T.INVOICE_NO, T.INVOICE_DATE,
T.PRODUCT_PKG_CODE, T.PRODUCT_PKG_ITEM
ORDER BY P.EFFECTIVITY_DATE DESC)
as PRODUCT_ITEM_PRICE
FROM TRANSACTION T,
ITEM_MASTER P
WHERE T.PRODUCT_PKG_CODE = P.PRODUCT_PKG_CODE
AND T.PRODUCT_PKG_ITEM = P.PRODUCT_PKG_ITEM
AND P.EFFECTIVITY_DATE <= T.INVOICE_DATE
AND T.INVOICE_NO = '1234';
While your question's formatting is a bit too messy for me to get all the details, it sure does look like you're looking for the standard SQL construct ROW_NUMBER() OVER with both PARTITION and ORDER_BY -- it's in PostgreSql 8.4 and has been in Oracle [and MS SQL Server too, and DB2...] for quite a while, and it's the handiest way to select the "top" (or "top N") "by group" and with a certain order of anything in a SQL query. Look it up, see here for the PosgreSQL-specific docs.