SQL 2012 :: Case Statement That Contains Multiplication

Aug 24, 2015

I'm trying to create a case statement that if a field = a certain code, I'd like to take another field * 0.9. But, I'm getting a Null value for the answer..here is the statement:,case when parts.ndc = '50242-0138-01' then labels.BAGSDISP*0.9 end "Units Dispensed"..For this example labels.BAGSDISP is a value of 2. So, in theory it should be 2 * 0.9 and the result should be 1.8 but I'm getting a NULL

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SQL Server 2012 :: Update Statement With CASE Statement?

Aug 13, 2014

i was tasked to created an UPDATE statement for 6 tables , i would like to update 4 columns within the 6 tables , they all contains the same column names. the table gets its information from the source table, however the data that is transferd to the 6 tables are sometimes incorrect , i need to write a UPDATE statement that will automatically correct the data. the Update statement should also contact a where clause

the columns are [No] , [Salesperson Code], [Country Code] and [Country Name]

i was thinking of doing

Update [tablename]
SET [No] =
CASE
WHEN [No] ='AF01' THEN 'Country Code' = 'ZA7' AND 'Country Name' = 'South Africa'
ELSE 'Null'
END

What is the best way to script this

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SQL 2012 :: Case When Statement With Dates

Jun 29, 2015

SELECT
SUM(((CASE WHEN
o.date>= a.activity_date, other filter condition, other filter condition
THEN
(select coalesce(d.balance,d2.balance) from drawtable d where coalesce(d.date, d2.date) < a.activity_date order by d.date desc limit 1) - ( select coalesce(d.balance, d2.balance) from drawtable d where coalesce(d.date, d2.date) = interval 'current date'
else end ))

from
emailtable a
LEFT JOIN opportunity o
left join drawtable d
left join drawtable d2
etc

The tricky part is I'm joining that same table twice.....would this be better in a max/min case when statement?

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SQL 2012 :: Case Statement Causes Duplicates

Jul 24, 2015

I have successfully built a messaging system into my application, I now in the process of displaying the messages in the UI.

The following are how my tables are constructed.

CREATE TABLE [MailBox].[Message](
[Id] [bigint] IDENTITY(1,1) NOT NULL,
[SenderId] [bigint] NOT NULL,
[Message] [nvarchar](max) NOT NULL,
[SentDate] [datetime] NOT NULL,
CONSTRAINT [PK_MailBox.Message] PRIMARY KEY CLUSTERED

[Code] .....

Now I haven't set the foreign key on the MessageReceipient table yet. When someone sends me an email I insert a record into [MailBox].[Message] and output the insert id into MessageReceipient along with the ReceipientId this is working as expected, when I then click on my inbox I call the following stored procedure:

Select p.Username, count(mr.RecipientId) [TotalMessages],
CASE
WHEN mr.ReadDate is null then 1 -- New message
WHEN mr.ReadDate is not null then 0 -- Message has been read
END AS NewMessage
FROM [User].[User_Profile] p
JOIN [MailBox].[Message] m on p.Id = m.SenderId
JOIN [MailBox].[MessageRecipient] mr on m.Id = mr.MessageId
GROUP BY p.Username, mr.RecipientId, mr.ReadDate

This will give me the person who has emailed me, the total amount of messages and if the message is new or its been read, I do this by checking the ReadDate column as shown in the case statement (but this gives me duplicates, which is not what I want). Lets say user1 emails me 5 times so when I call this proc I will have the same user displayed to me 5 times, what I'm trying to achieve with the proc is it will show User1 as the following:

User1 5 Messages 1 or 0 New Messages

I can get it to display as follow when I remove the case statement

User1 5 Messages

but as soon as I add the case statement back in then I get 5 rows.

How can I change this proc in such a way that it will display the data as follows;

User1 5 Messages 1 or 0 New Messages

New Messages is dependent on ReadDate if its null then we have a new message, otherwise its been read.

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SQL 2012 :: How To Use RTRIM In Case Statement

Oct 1, 2015

I have a DistributorInvoiceNumber that can end with in 'R', 'A', 'CRR' or 'CR'.I am trying to write a case statement like so:

CASE WHEN RIGHT([ih].[DistributorInvoiceNumber],1) = 'A'
THEN 'ADJ'
WHEN RIGHT([ih].[DistributorInvoiceNumber],1) = 'R'
THEN 'REV'
WHEN RIGHT([ih].[DistributorInvoiceNumber],3) = 'CRR'
THEN 'REV'
WHEN RIGHT([ih].[DistributorInvoiceNumber],2) = 'CR'
THEN 'CREDIT'
ELSE NULL END AS 'Status'

For the most part the code is working, with the exception of the fields that just end in 'R'. An example of this is 471268R, 2525125901CRR, 11100325230CR
Basically if the number ends with an A, then its an Adjustment, if it ends with JUST an R, then its a Reversal; if it ends with just a CR then it is a Credit and if it ends with CRR then it is a Reversal (Credit Reversal). How can I differentiate between the different R's since three of them end with R? Would I use a RTRIM command somehow?

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SQL Server 2012 :: Count Value In Case Statement

Aug 5, 2014

My table structure like below.

id date value1 value2
1 5-june-2104 Yes No
1 6-june-2014 No Yes
2 5-june-2104 Yes Yes

Want to calculate yes count on any day for same id

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SQL 2012 :: Order Of Preference In Case Statement

Sep 9, 2015

I'm trying to set up a statement that gives me a field called 'BINNO' if the payor = Commercial. But, I have a few customers that don't have Commercial. They have a Payor of Grant or Part D. How would I set up a statement that looks for Commerical 1st...then Grant or Part D. I started with this

case when inscomp.payor = 'COMMERCIAL' then INSCOMP.BINNO

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SQL 2012 :: Using Count Function And Case In One Select Statement

Jul 9, 2014

I am selecting the count of the students in a class by suing select COUNT(studentid) as StCount FROM dbo.student But I need to use a case statement on this like if count is less than 10 I need to return 'Small class' if the count is between 10 to 50 then I need to return 'Medium class' and if the count is more than 50 then 'Big class'.

Right now I am achieving this by the following case statement

SELECT 'ClassSize' = CASE WHEN Stcount<10 THEN 'Small Class'
WHEN Stcount>=10 and StCount<=50THEN 'Medium Class'
WHEN Stcount>50 THEN 'Big Class'
END
FROM(
select COUNT(studentid) as Stcount FROM dbo.student) Stdtbl

But can I do this with just one select statement?

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SQL 2012 :: Converting Case Statement To Config Table?

Nov 3, 2015

I have a stored procedure in which we are deriving some flags. So, we used series of CASE statements.

For examples

CASE
WHEN LEFT(CommissionerCode, 3) IN ('ABC','DEF',...) THEN 1
WHEN PracticeCode IN (.......) THEN 1
WHEN (CommissionerCode IN (.....) OR PracticeCode NOT IN (.....) OR .....) THEN 1
ELSE 0
END

I need to put these conditions in config table and generate dynamic sql.

What is the best way to do this? especially, 3rd condition with OR logic with multiple columns involved.

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SQL Server 2012 :: Case When Statement - N Number Of Years Without Modifications

Feb 4, 2014

Below is the scenario which I have currently in my query. I need to write this query without any hardcode values , so that it will work til n number of years without modifications.

Startdate =
CASE WHEN
Trandate between '06-04-2013' and '05-04-2014' then '06-04-2013'
Trandate between '06-04-2012' and '05-04-2013' then '06-04-2012'
Trandate between '06-04-2011' and '05-04-2012' then '06-04-2011'
Trandate between '06-04-2010' and '05-04-2011' then '06-04-2010'
Trandate between '06-04-2009' and '05-04-2010' then '06-04-2009'
Trandate between '06-04-2008' and '05-04-2019' then '06-04-2008'
END

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SQL Server 2012 :: Case Statement Executing A Stored Procedure

Aug 20, 2014

Is this possible, I am trying to execute a stored procedure depending on what parameter is selected, something like this????

Case
when field = 'value' then execute sp_procedure else execute sp_procedure_2 end
case

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SQL Server 2012 :: Filtering Query Using CASE Statement Within WHERE Clause

Aug 21, 2014

How I am using a CASE statement within a WHERE clause to filter data:

CREATE PROCEDURE dbo.GetSomeStuff
@filter1 varchar(100) = '',
@filter2 varchar(100) = ''
AS
BEGIN
SELECT

[Code] .

What I want, is to be able to pass in a single value to filter the table, or if I pass in (at the moment a blank) for no filter to be applied to the table.

Is this a good way to accomplish that, or is there a better way? Also, down the line I'm probably going to want to have multiple filter items for a single filter, what would be the best way to implement that?

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SQL Server 2012 :: Case Statement - How To Get Values Into Alias Extension

Oct 6, 2014

I have a bit of trouble getting values into one alias field, my code is below. I am trying to get values into the alias extension, Agent_ID is sometimes null, and so is agent_id2, however sometimes they both have values in them, and then only one of the values is every returned. When in the example below only Agent_ID (11111) is ever returned by I want both of them returned.

Agent_ID Agent_ID2
11111 22222
<code>
SELECT DISTINCT
CASE WHEN [AGENT_ID] is not null then AGENT_ID
when agent_id2 is not null then agent_id2 end as extension
FROM [AA_Helper].[dbo].[tblEmpData]
</code>

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SQL Server 2012 :: Significant Performance Dropping When Use CASE Statement

Oct 14, 2014

1. I have a simple JOIN statement between A and B, e.g. Cities A JOIN Countries B:

SELECT A.City_Name, B.Country_Code, B.Country_Area
FROM Cities A
JOIN Countries B
ON B.Country_Id = A.Country_Id
WHERE B.Country_Type='ABC';

That statement works absolutely fine, very fast (less than a second) and returns me 2 records

2. I need to replace Country Area column with 1 for Europe and 0 for all the rest. I implement so in the following way:

SELECT A.City_Name, B.Country_Code, CASE B.Country_Area WHEN 'EUR' THEN 1 ELSE 0 AS Country_Area
FROM Cities A
JOIN Countries B
ON B.Country_Id = A.Country_Id
WHERE B.Country_Type='ABC';

Now to get the same two records it takes 03:55 minutes (!)

I have looked into Estimated Execution Plan, but couldn't spot any difference - all straight forward.

It is SQL 2012 SP1 with compatibility level set to 110

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SQL Server 2012 :: Case Statement - Populate Field Names In Table

Apr 9, 2014

Is this a correct syntax to populate a field name PHONES in my CUSTOMERS TABLE

case when(d.phone = (SELECT phone from CALLS where exists(select home_phone, mobile, toll_free from CALLS2) Then 1 END 'PHONES'

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SQL Server 2012 :: Replacing CASE Statement In Update With Table-driven Logic

Oct 20, 2014

I have a stored proc that contains an update which utilizes a case statement to populate values in a particular column in a table, based on values found in other columns within the same table. The existing update looks like this (object names and values have been changed to protect the innocent):

UPDATE dbo.target_table
set target_column =
case
when source_column_1= 'ABC'then 'XYZ'
when source_column_2= '123'then 'PDQ'

[Code] ....

The powers that be would like to replace this case statement with some sort of table-driven structure, so that the mapping rules defined above can be maintained in the database by the business owner, rather than having it embedded in code and thus requiring developer intervention to perform changes/additions to the rules.

The rules defined in the case statement are in a pre-defined sequence which reflects the order of precedence in which the rules are to be applied (in other words, if a matching value in source_column_1 is found, this trumps a conflicting matching value in source_column_2, etc). A case statement handles this nicely, of course, because the case statement will stop when it finds the first "hit" amongst the WHEN clauses, testing each in the order in which they are coded in the proc logic.

What I'm struggling with is how to replicate this using a lookup table of some sort and joins from the target table to the lookup to replace the above case statement. I'm thinking that I would need a lookup table that has column name/value pairings, with a sequence number on each row that designates the row's placement in the precedence hierarchy. I'd then join to the lookup table somehow based on column names and values and return the match with the lowest sequence number, or something to that effect.

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SQL Server 2012 :: Case Statement On Nvarchar With Literal String Comparison To Varchar?

Apr 14, 2015

how SQL 2012 would treat a literal string for a comparison similar to below. I want to ensure that the server isn't implicitly converting the value as it runs the SQL, so I'd rather change the data type in one of my tables, as unicode isn't required.

Declare @T Table (S varchar(2))
Declare @S nvarchar(255)
Insert into @T
Values ('AR'), ('AT'), ('AW')
Set @S = 'Auto Repairs'
Select *
from @T T
where case @S when 'Auto Repairs' then 'AR'
when 'Auto Target' then 'AT'
when 'Auto Wash' then 'AW' end = T.STo summarise

in the above would AR, AT and AW in the case statement be treated as a nvarchar, as that's the field the case is wrapped around, or would it be treated as a varchar, as that's what I'm comparing it to.

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SQL Server 2012 :: Select Case Statement To Remove Part Of String After One Or Two Specific Characters

Jun 3, 2015

I have an Address column that I need to Substring. I want to remove part of the string after either, or both of the following characters i.e ',' OR '*'

Example Record 1. Elland **REQUIRES BOOKING IN***
Example Record 2. Theale, Nr Reading, Berkshire
Example Record 3. Stockport

How do I achieve this in a CASE Statement?

The following two case statements return the correct results, but I some how need to combine them into a single Statement?

,LEFT(Address ,CASE WHEN CHARINDEX(',',Address) =0
THEN LEN(Address )
ELSE CHARINDEX(',' ,Address ) -1 END) AS 'Town Test'

,LEFT(Address ,CASE WHEN CHARINDEX('*',Address ) =0
THEN LEN(Address)
ELSE CHARINDEX('*' ,Address ) -1 END) AS 'Town Test2'

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Problem Using Result From CASE In Another CASE Statement

Nov 5, 2007

I have a view where I'm using a series of conditions within a CASE statement to determine a numeric shipment status for a given row. In addition, I need to bring back the corresponding status text for that shipment status code.

Previously, I had been duplicating the CASE logic for both columns, like so:




Code Block...beginning of SQL view...
shipment_status =
CASE
[logic for condition 1]
THEN 1
WHEN [logic for condition 2]
THEN 2
WHEN [logic for condition 3]
THEN 3
WHEN [logic for condition 4]
THEN 4
ELSE 0
END,
shipment_status_text =
CASE
[logic for condition 1]
THEN 'Condition 1 text'
WHEN [logic for condition 2]
THEN 'Condition 2 text'
WHEN [logic for condition 3]
THEN 'Condition 3 text'
WHEN [logic for condition 4]
THEN 'Condition 4 text'
ELSE 'Error'
END,
...remainder of SQL view...






This works, but the logic for each of the case conditions is rather long. I'd like to move away from this for easier code management, plus I imagine that this isn't the best performance-wise.

This is what I'd like to do:



Code Block
...beginning of SQL view...
shipment_status =
CASE
[logic for condition 1]
THEN 1
WHEN [logic for condition 2]
THEN 2
WHEN [logic for condition 3]
THEN 3
WHEN [logic for condition 4]
THEN 4
ELSE 0
END,


shipment_status_text =

CASE shipment_status

WHEN 1 THEN 'Condition 1 text'

WHEN 2 THEN 'Condition 2 text'

WHEN 3 THEN 'Condition 3 text'

WHEN 4 THEN 'Condition 4 text'

ELSE 'Error'

END,
...remainder of SQL view...


This runs as a query, however all of the rows now should "Error" as the value for shipment_status_text.

Is what I'm trying to do even currently possible in T-SQL? If not, do you have any other suggestions for how I can accomplish the same result?

Thanks,

Jason

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How To Write Select Statement Inside CASE Statement ?

Jul 4, 2006

Hello friends,
I want to use select statement in a CASE inside procedure.
can I do it? of yes then how can i do it ?

following part of the procedure clears my requirement.

SELECT E.EmployeeID,
CASE E.EmployeeType
WHEN 1 THEN
select * from Tbl1
WHEN 2 THEN
select * from Tbl2
WHEN 3 THEN
select * from Tbl3
END
FROM EMPLOYEE E

can any one help me in this?
please give me a sample query.

Thanks and Regards,
Kiran Suthar

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Transact SQL :: Update Statement In Select Case Statement

May 5, 2015

I am attempting to run update statements within a SELECT CASE statement.

Select case x.field
WHEN 'XXX' THEN
  UPDATE TABLE1
   SET TABLE1.FIELD2 = 1
  ELSE
   UPDATE TABLE2
   SET TABLE2.FIELD1 = 2
END
FROM OuterTable x

I get incorrect syntax near the keyword 'update'.

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Case Statement Error In An Insert Statement

May 26, 2006

Hi All,
I've looked through the forum hoping I'm not the only one with this issue but alas, I have found nothing so I'm hoping someone out there will give me some assistance.
My problem is the case statement in my Insert Statement. My overall goal is to insert records from one table to another. But I need to be able to assign a specific value to the incoming data and thought the case statement would be the best way of doing it. I must be doing something wrong but I can't seem to see it.

Here is my code:
Insert into myTblA
(TblA_ID,
mycasefield =
case
when mycasefield = 1 then 99861
when mycasefield = 2 then 99862
when mycasefield = 3 then 99863
when mycasefield = 4 then 99864
when mycasefield = 5 then 99865
when mycasefield = 6 then 99866
when mycasefield = 7 then 99867
when mycasefield = 8 then 99868
when mycasefield = 9 then 99855
when mycasefield = 10 then 99839
end,
alt_min,
alt_max,
longitude,
latitude
(
Select MTB.LocationID
MTB.model_ID
MTB.elevation, --alt min
null, --alt max
MTB.longitude, --longitude
MTB.latitude --latitude
from MyTblB MTB
);

The error I'm getting is:
Incorrect syntax near '='.

I have tried various versions of the case statement based on examples I have found but nothing works.
I would greatly appreciate any assistance with this one. I've been smacking my head against the wall for awhile trying to find a solution.

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How To Show Records Using Sql Case Statement Or If Else Statement

Feb 20, 2008

i want to display records as per if else condition in ms sql query,for this i have used tables ,queries as follows


as per data in MS Sql

my tables are as follows
1)material
fields are -- material_id,project_type,project_id,qty, --

2)AB_Corporate_project
fields are-- ab_crp_id,custname,contract_no,field_no

3)Other_project
fields are -- other_proj_id,other_custname,po

for ex :
vales in table's are
AB_Corporate_project
=====================
ab_crp_id custname contract_no field_no
1 abc 234 66
2 xyz 33 20

Other_project
============
other_proj_id other_custname po
1 xxcx 111
2 dsd 222

material
=========
material_id project_type project_id qty
1 AB Corporate 1 3
2 Other Project 2 7

i have taken AB Corporate for AB_Corporate_project ,Other Project for Other_project


sample query i write :--

select m.material_id ,m.project_type,m.project_id,m.qty,ab.ab_crp_id,
ab.custname ,op.other_proj_id,op.other_custname,op. po
case if m.project_type = 'AB Corporate' then
select * from AB_Corporate_project where ab.ab_crp_id = m.project_id
else if m.project_type = 'Other Project' then
select * from Other_project where op.other_proj_id=m.project_id
end
from material m,AB_Corporate_project ab,Other_project op


but this query not work,also it gives errors

i want sql query to show data as follows


material_id project_type project_id custname other_custname qty
1 AB Corporate 1 abc -- 3
2 Other Project 2 -- dsd 7

so plz help me how can i write sql query for to show the output
plz send a sql query

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About Multiplication In Sql

Feb 7, 2006

what is the value when running sql script?

select cast(cast(.0000006 as numeric(38,10)) * cast(1.0 as numeric(38,10)) as numeric(38,10))



the result is .0000010000.

why the result is not .0000006000?

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SQL Server Huge Bug On Multiplication ?

Nov 28, 2007

When I run the following code :


DECLARE @var1 float,
@var2 int;
SET @var1 = 32.91 ;
SET @var2 = 100 ;
SELECT CAST(@var1 * @var2 AS int);

the result is ... 3290 (whereas it should be 3291 !)

Also works for @var1 set to 33.91 34.91 35.91 36.91 37.91 38.91 39.91 but not for other values > 40.

Is that a SQL Server bug ?

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Does Multiplication With 1 Affect Query Performance?

May 20, 2008

Does multiplication with 1 affect query performance?I have a a stored procedure that converts results to another unit if required. In alternative 1 below, the results are returned with a separate select statement if no conversion is necessary - in other words, no multiplication with a conversion factor is required. However, the code is not very nice since I need to repeat the select statement again in case a conversion is required, this time including the conversion factor.Alternative 2 uses cleaner-looking code. The conversion factor is set to 1 if no conversion is required, and a single SELECT statement is used to return the data. The @factor variable is defined as a float.I would rather use alternative 2, but I wonder if there is any performance penalty for doing that if no conversion is required since the results are always multiplied with the @factor? Or can SQL server somehow understand that @factor = 1 and no multiplication is required?--- Alternative 1: ---IF @fromunit_sid = @tounit_sid-- Return unconverted results
SELECT ISNULL(ls_totalWaterConsumption,0) AS ls_totalWaterConsumption,ls_theoreticalWaterConsumption AS ls_theoretical_WaterConsumption,ls_totalWaterConsumption - ls_theoreticalWaterConsumption AS ls_extra_WaterConsumption FROM Results WHERE scenario_id = @scenario_idELSEBEGIN
-- Get conversion factor
EXEC getConversionFactor @fromunit_sid, @tounit_sid, @factor OUTPUT -- Get the converted results
SELECT ISNULL(ls_totalWaterConsumption * @factor,0) AS ls_totalWaterConsumption, ls_theoreticalWaterConsumption * @factor AS ls_theoretical_WaterConsumption, (ls_totalWaterConsumption - ls_theoreticalWaterConsumption) * @factor AS ls_extra_WaterConsumptionFROM Results WHERE scenario_id = @scenario_idEND --- Alternative 2: ---IF @fromunit_sid = @tounit_sidSET @factor = 1ELSE
-- Get conversion factor
EXEC getConversionFactor @fromunit_sid, @tounit_sid, @factor OUTPUT

-- Get the converted results
SELECT ISNULL(ls_totalWaterConsumption * @factor,0) AS ls_totalWaterConsumption, ls_theoreticalWaterConsumption * @factor AS ls_theoretical_WaterConsumption, (ls_totalWaterConsumption - ls_theoreticalWaterConsumption) * @factor AS ls_extra_WaterConsumptionFROM Results WHERE scenario_id = @scenario_id  And another question: is using an IF function considerably faster than making a call to another stored procedure?In alternative 2 above I use an IF statement to check if @fromunit_sid = @tounit_sid, and . But in fact the function getConversionFactor that I'm calling does exactly the same thing:  if I pass in identical from- and to-values, it simply returns 1, so I could omit the IF statement completely and just use alternative 3. But is it slower?--- Alternative 3 -- Get conversion factor
EXEC getConversionFactor @fromunit_sid, @tounit_sid, @factor OUTPUT

-- Get the converted results
...  

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Multiplication By Row Without A Cursor? Myth Or Madness?

Jun 15, 2004

Hi all...I have a friend who has a problem I'm trying to help with (no...REALLY...it's a FRIEND, not ME!!! *LOL*)

I haven't run across the need...but in a nutshell...we have a table with many rows of data, one column in each row needs to be multiplied by all other same-columns in the table's other rows.

For example...
MyKey int, MyFloat float(53)

I want to multiply Myfloat by all other Myfloat columns in the table.

Similar to SUM(MyFloat) but something like PRODUCT(MyFloat).

Is there a aggregate kept in a basement closet somewhere, or a way to perform this operation rather than using a cursor to do it:

An example of my table:
1 3.2
2 4.1
3 7.1

if I could do a PRODUCT(MyFloat) I would want the result to be (3.2 X 4.1 X 7.1) or 93.152

Do I have to do this with a cursor?

Thanks!
Paul

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Cross Table Multiplication Query

Mar 30, 2012

I am currently building a website to deal with different product information and sales with php. I am using SQL to sort the database and pull out information.

The final thing i need to do is work out the total revenue of each product however the problem i am having is that the 'Price' column and 'SalesVolume' column are in two different tables and they need to be multiplied together.

The two tables and column headings are as follows:

Product
ID
Name
Price

MonthlySales
ID
ProductCode
Month
Year
SalesVolume

(ID and ProductCode are linked together in a relationship)

I cannot see anything wrong with the syntax in my query however i believe there is.

Here is the query I am using:

Code:
"SELECT SUM(Products.Price * SUM(MonthlySales.SalesVolume)) as revenue FROM Products
INNER JOIN MonthlySales ON(Products.ProductCode = MonthlySales.id) GROUP BY Products.ProductCode";

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Eliminating Combinatorial Relationship Multiplication

Jul 20, 2005

Suppose I have users that can belong to organizations. Organizationsare arranged in a tree. Each organization has only one parentorganization but a user maybe a member of multiple organizations.The problem that I'm facing that both organizations and individualusers may have relationships with other entities which aresemantically the same. For instance, an individual user can purchasethings and so can an organization. An individual user can havebusiness partners and so can an organization. So it seems that I wouldneed to have a duplicate set of link tables that link a user to apurchase and then a parallel link table linking an organization to apurchase. If I have N entities with which both users and organizationsmay have relationships then I need 2*N link tables. There is nothingwrong with that per se but just not elegant to have two differenttables for a relationship which is the same in nature, e.g.purchaser->purchaseditem.One other approach I was thinking of is to create an intermediateentity (say it's called "holder") that will be used to hold referencesto all the relationships that both an organization and an individualmay have. There will be 2 link tables linking organizations to"holder" and users to "holder". Holder will in turn reference thepurchases, partners and so on. In this case the number of link tableswill be N+2 as opposed to 2*N but it will have a performance cost ofan extra join.Is there a better way of modelling this notion of 2 different entitiesthat can possess similar relationships with N other entities?

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Case Statement In Sql Help

Jan 18, 2008

I am trying to use a case statement in one of my stored proc but I am stuck a little bit.Here is a example, something like:declare @id int   set @id =1case @id         When 1 then select  *  from contactsend case but this keeps on giving me error: Incorrect syntax near the keyword 'case'. Any help is appreciated! 

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Case Statement

Apr 22, 2008

Hi I have some question regarding the sql case statment.Can i use the case statement with the where clause.Example: SELECT FirstName, IDFROM myTablewhere case when ID= '123' then id = '123' and id='124' endorder by idBut the above code does not work.  

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Sql Case Statement Help

Jun 2, 2005

Hi all,
I was wondering if there is any way in an sql statement to check whether the data your trying to get out of the DB is of a particular type, ie. Int, char etc. I was thinking about a case statement such as
<code>
CASE WHEN (MyNum <> INT) then 0 end AS MyNum
</code>
 
This has to be included in the sql statement cause I need this field to get other data.
Any thoughts on how to achieve this would be greatly appreciated.
 
If I’m in the wrong thread section please advise of best one to get help in.

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What Is The Best SQL Statement For This Case ?

Sep 17, 2005

Hi !!!i hope one of the sql specialists answer me about the best and most effeceint way to acheive what i am looking for Scenario:-------------i have a 3 tables related to each other Addresses, Groups and GroupAddressthe relation is for both addresses and groups  is one to many in the GroupAddress.the behaviour in the application : user can add addresses to his address list and from the address list a user can add an address to many groups like if you have Group name "Freinds" and you add me in it and you have Football team group and you add me to it like that !!!not i have another function called "copy group"in the GroupAddress i have this data as example GroupID   AddressID1                41                61                21              441              72              82             62             93            133             73           10and the group ID called "Freinds"i want to copy the group so i can have another group that has the same addresses by one click rather than collectiong them again one by one ...by the way the new copy will have a new group name ( as this is thebusiness logic so user can not have dupicate group name )so what is the best SQL statement that i need to copy the group ???i hope that clear enough!

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