MS SQL Server :: Nested Case Statements

Nested Case Statements???

May 18, 2001

Can anyone show me how to write or post a sample of a nested case statement?

Thanks,

LOC

Hi All,

I'am trying to program a nested CASE statements (if this is not possible, does anyone have any alternate suggestions ?) and I'm getting syntax errors.
The statement is:

SELECT @cmdLine =
CASE @BackupType
WHEN 1 THEN Select @tmpStr =
CASE @initFlag
WHEN 1 THEN 'BACKUP Database ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH INIT, NOUNLOAD, NAME = ' + @backupJobName + ' , SKIP , STATS = 10, NOFORMAT'
ELSE 'BACKUP Database ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH NOINIT, NOUNLOAD, NAME = ' + @backupJobName + ' , SKIP , STATS = 10, NOFORMAT'
END
WHEN 2 THEN Select @tmpStr =
CASE @initFlag
WHEN 1 THEN 'BACKUP Database ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH DIFFERENTIAL, INIT , NOUNLOAD, NAME = ' + @backupJobName + ', SKIP, STATS = 10, NOFORMAT'
ELSE 'BACKUP Database ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH DIFFERENTIAL, NOINIT , NOUNLOAD, NAME = ' + @backupJobName + ', SKIP , STATS = 10, NOFORMAT'
END
WHEN 3 THEN Select @tmpStr =
CASE @initFlag
WHEN 1 THEN 'BACKUP Log ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH INIT, NOUNLOAD, NAME = ' + @backupJobName + ', SKIP , STATS = 10, NOFORMAT'
ELSE 'BACKUP LOG ' + @databaseName + 'TO '+ @backupDeviceName + ' WITH NOINIT, NOUNLOAD, NAME = ' + @backupJobName + ', SKIP , STATS = 10, NOFORMAT'
END
ELSE ''
END

TIA,

Romy Stevensen

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Nested Case Statements

Jan 30, 2008

Is it possible to use nested case statements in the SQL for your dataset when you are using Reporting Services? I keep getting an error saying "Unable to parse expression" and my report won't run.

Code SnippetCASE WHEN (CASE WHEN DateDiff(d , GetDate() , DATEADD(d , - 1 , DATEADD(m , 1 , DATEADD(m , 1 , DATEADD(d , - (1 * (DAY(TRANSACTION_DATE) - 1)) , TRANSACTION_DATE))))) < '0 THEN 'Overdue' WHEN DateDiff(d , GetDate(), DATEADD(m , FIELD1 / 30 - 1 , DATEADD(m , 1 , DATEADD(d , - (1 * (DAY(TRANSACTION_DATE) - 1)) , TRANSACTION_DATE)))) > 0 THEN 'Not Due' ELSE 'Due' END)= 'Not Due' AND FIELD2 > 0 THEN DateDiff(m , GetDate() , DATEADD(m , FIELD1 / 30 - 1 , DATEADD(m , 1 , DATEADD(d , - (1 * (DAY(TRANSACTION_DATE) - 1)) , TRANSACTION_DATE))) * 30) / 360 * FIELD2 * @PARAMETER1 ELSE NULL END

I know this is quite a complex statement, so at first I was worried that maybe I had brackets in the wrong places, but I've been through the code and made sure that every opening bracket has an equivalent closing bracket, and everything appears to be OK in that respect. So I'm thinking that maybe the structure of my nested case statements is incorrect? The inner case statement is necessary to calculate whether a transaction is due, overdue or not due. The outer case statement depends on the result of the inner case statement.

Basically, we only want the calculations following the "THEN" in the outer case statement to be executed if the result of the inner case statement is "not due" and Field2 is greater than zero. If either of those criteria aren't met, then it should go straight to the ELSE NULL END statement and stop.

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Concatenating Parameter Values && Text; Nested CASE Statements

Sep 27, 2007

Hello. I'm trying to reduce some code in my stored procedure and I'm running into lots of errors. I'm somewhat of a novice with SQL and stored procedures so any help would be beneficial.
I have a SP that gets a page of user data and is also called when sorting by one of the columns (this data is placed in a repeater, btw). I quickly learned that I wasn't able to pass in string parameters the way I had hoped in order to handle the ORDER BY and direction (ASC/DESC) so I'm trying to work around this.
So far I've tried the following with many errors.WITH Users AS (
SELECT ROW_NUMBER() OVER (ORDER BY CASE WHEN @OrderBy='FirstName' AND @Direction='DESC' THEN (FirstName + ' DESC')
WHEN @OrderBy='FirstName' THEN FirstName
WHEN @OrderBy='LastName' AND @Direction='DESC' THEN (LastName + ' DESC')
WHEN @OrderBy='LastName' THEN LastName
END
) AS Row,
UserID, FirstName, LastName, EmailAddress, [Role], Active, LastLogin, DateModified, ModifiedBy, ModifiedByName
FROM
vRF_Users
)

SELECT UserID, FirstName, LastName, EmailAddress, [Role], Active, LastLogin, DateModified, ModifiedBy, ModifiedByName
FROM Users
WHERE Row BETWEEN @StartRowIndex AND @EndRowIndex

I've tried a combination of similar things with parenthesises, without, doing "THEN FirstName DESC" without concatenating anything, etc.
I also tried: DECLARE @OrderByDirection varchar(32)
DECLARE @DESC varchar(4)
SET @DESC = ' DESC'

IF @Direction = 'DESC'
BEGIN
SET @OrderByDirection = (@OrderBy + @DESC)
END
And then writing my case statemet like this:ORDER BY CASE WHEN @Direction='DESC' THEN @OrderByDirection
ELSE @OrderBy
ENDObviously this didn't work either. Is there any way to gracefully accomplish this or do I just have to use a bunch of if/else statements and lots of redundant code to evaluate all my @OrderBy and @Direction parameters???

Thanks in advance,
Jen

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Nested IF Statements

Sep 21, 2007

Here is what i am trying to do

select ID, FName, LName
if(SUBSTRING(FirstName, 1, 4)= 'Mike')
Begin
Replace(FirstNam,'Mike','MikeTest')
if(SUBSTRING(LastName, 1, 4)= 'Kong')
Begin
Replace(LastNam,'Kong,'KongTest')
if(SUBSTRING(Address, 1, 4)= '1245')
Begin
.........
End
End

end

from dbo.test1Users

When i do that i get this error
Incorrect syntax near the keyword 'from'.

Thank you for your help

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Nested Select Statements

Jan 26, 2005

I need help nesting select statements. Here's what I'm trying to do:

select (select e.emp_name_lf as employee, e.emp_id
from employee e, install_payroll_detail ipd
where e.emp_id = ipd.emplno)
e.emp_name_lf as username
from employee e, install_payroll_master ipm
where e.emp_id = ipm.entered_by

I just want one row with both the employee and username, however I cannot get the syntax. Any help is greatly appreciated.

Thanks!

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Nested Executes In Insert Statements

Mar 19, 2001

Is this a limitation of SQL server. I am running a quite complex sp that I wrote which uses exec to execute an SQL string. Running the SP produces the desired results but if I try to use this sp with an insert statement then I get an error message that exec cannot be nested in an insert statement.....any help would be appreciated

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Nested REPLACE Statements Using Multiple Columns

Jun 20, 2007

I need to pass 3 column values and one Formula string into 4 replace statements and output the result in one column.

Nesting them in the usual way doesn't seem to work as that only allows for one column.

My table consits of four columns...PF (numeric), Hours (numeric), TotalNumber INT, and Formula (nvatchar)

My function needs to search and replace the Formula column for instances of all the three number columns and output the formula as a mathmatical formula rather than a string.

Here is what I have so far which works fine if all three columns have a value, but if only one is null then it will retrun NULL and not the other two values.

FUNCTION GetFormula
(@numPF NUMERIC(10,2), @numHours NUMERIC(10,2), @intTotalNumber INT, @strFormula nvarChar(200)) RETURNS nvarchar(200)
AS
BEGIN
DECLARE @strExpression nvarchar(200)

SELECT @strExpression=REPLACE(@strFormula, 'TotalNumber',@intTotalNumber)
SELECT @strExpression=REPLACE(@strExpression, 'PF',@numPF )
SELECT @strExpression=REPLACE(@strExpression, 'Hours',@numHours )
RETURN @strExpression
END

Many Thanks

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Referencing Tables In Nested Select Statements

Mar 3, 2008

I'm just wodnering if you have two select statements, one nested inside another, can you reference tables from the outer loop?

for example, say I would like to find all employees who have at least two clients and employees and clients have a one to many relationship.

select *
from Employee e
where
(
select count(*)
from Clients c
where c.EmployeeId = e.EmployeeId
) >= 2

This obviously doesn't work - but how would i go about doing something like this?

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Select Statements And Nested Stored Procedures

Mar 21, 2008

I have nested a Stored Procedure within a stored procedure. The nested stored procedure ends in a select statement. What I'd like to do is either capture the results of the select statement (it will be 1 row with 3 columns, I only need the contents of first column), or suppress the select statement from displaying in the final results of the Stored Procedure it is nested in.

Is there any way to do either of those?

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Nested Select Statements Not Working The Way I Was Hoping...

Apr 18, 2008

So I have another query I can't seem to function the way I was hoping. I've learned a lot in this past month or so but I've hit another challenge. Anyways what I'm trying to do is when a user/student wants to add a new major I want to show a list of majors that are NOT already in his/her profile. So basically if I had a full list of majors:
Accounting
Computer Science
Mathematics

and the user already had Mathematics in his/her profile I'd like it to display only:

Accounting
Mathematics

Below is the layout of the tables, my attempt at the query, and then below that some example data.

Code Snippet

USE [C:COLLEGE ACADEMIC TRACKERCOLLEGE ACADEMIC TRACKERCOLLEGE.MDF]
GO
/****** Object: Table [dbo].[Majors] Script Date: 04/17/2008 22:38:06 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[Majors](
[MajorID] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NOT NULL,
CONSTRAINT [PK_Majors] PRIMARY KEY CLUSTERED
(
[MajorID] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]

GO
SET ANSI_PADDING OFF

USE [C:COLLEGE ACADEMIC TRACKERCOLLEGE ACADEMIC TRACKERCOLLEGE.MDF]
GO
/****** Object: Table [dbo].[MajorDisciplines] Script Date: 04/17/2008 22:38:16 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[MajorDisciplines](
[MajorDisciplineID] [int] IDENTITY(0,1) NOT NULL,
[DegreeID] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[MajorID] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[DisciplineName] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[Description] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[Criteria] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
CONSTRAINT [PK_MajorDiscipline] PRIMARY KEY CLUSTERED
(
[MajorDisciplineID] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[MajorDisciplines] WITH CHECK ADD CONSTRAINT [FK_MajorDiscipline_DegreeID] FOREIGN KEY([DegreeID])
REFERENCES [dbo].[Degree] ([DegreeID])
GO
ALTER TABLE [dbo].[MajorDisciplines] CHECK CONSTRAINT [FK_MajorDiscipline_DegreeID]
GO
ALTER TABLE [dbo].[MajorDisciplines] WITH CHECK ADD CONSTRAINT [FK_MajorDiscipline_MajorID] FOREIGN KEY([MajorID])
REFERENCES [dbo].[Majors] ([MajorID])
GO
ALTER TABLE [dbo].[MajorDisciplines] CHECK CONSTRAINT [FK_MajorDiscipline_MajorID]

USE [C:COLLEGE ACADEMIC TRACKERCOLLEGE ACADEMIC TRACKERCOLLEGE.MDF]
GO
/****** Object: Table [dbo].[MajorDisciplines] Script Date: 04/17/2008 22:38:16 ******/
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[MajorDisciplines](
[MajorDisciplineID] [int] IDENTITY(0,1) NOT NULL,
[DegreeID] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[MajorID] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[DisciplineName] [varchar](50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[Description] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
[Criteria] [text] COLLATE SQL_Latin1_General_CP1_CI_AS NULL,
CONSTRAINT [PK_MajorDiscipline] PRIMARY KEY CLUSTERED
(
[MajorDisciplineID] ASC
)WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
SET ANSI_PADDING OFF
GO
ALTER TABLE [dbo].[MajorDisciplines] WITH CHECK ADD CONSTRAINT [FK_MajorDiscipline_DegreeID] FOREIGN KEY([DegreeID])
REFERENCES [dbo].[Degree] ([DegreeID])
GO
ALTER TABLE [dbo].[MajorDisciplines] CHECK CONSTRAINT [FK_MajorDiscipline_DegreeID]
GO
ALTER TABLE [dbo].[MajorDisciplines] WITH CHECK ADD CONSTRAINT [FK_MajorDiscipline_MajorID] FOREIGN KEY([MajorID])
REFERENCES [dbo].[Majors] ([MajorID])
GO
ALTER TABLE [dbo].[MajorDisciplines] CHECK CONSTRAINT [FK_MajorDiscipline_MajorID]

SELECT MajorID
FROM Majors majs
WHERE majs.MajorID NOT IN (SELECT majDis.MajorID FROM MajorDisciplines majDis WHERE majDis.MajorDisciplineID NOT IN (SELECT sMajors.MajorDisciplineID FROM Student_Majors sMajors WHERE sMajors.StudentID = 0))
dbo.Majors
MajorID
Accounting
Computer Science
Mathematics

dbo.MajorDisciplines
MajorDisciplinesID ... MajorID ...
1 Computer Science
2 Accounting
3 Accounting
4 Mathematics

dbo.Student_Majors
MajorDisciplineID StudentID
1 0

Oh also for the MajorIDs I don't want it to return duplicates such as the Accounting in MajorDisciplines...which I was hoping my query wouldn't do but it returns absolutely random data...

Hope someone can help!

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Nested Case?

Jan 10, 2005

What's wrong with this...

Code:

SELECT case when tab1.col2=tab1.col3 and tab1.col3!=0
then (SELECT tab3.col3 FROM tab3)
else (case when tab5.col2=tab5.col6
then (SELECT tab7.col1 FROM tab7)
else (case when tab1.col2=tab1.col3 then tab1.col4+7 end)
end as value
From tab5, tab1
WHERE tab1.col1=tab5.col1

I get the error as-
Server: Msg 156, Level 15, State 1, Line 6
Incorrect syntax near the keyword 'as'.
please help me.

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Nested CASE

Dec 19, 2005

Hello,

I've got a SP that selects the best price from a table that has all info collected into it. Selecting the price is easy, I use COALESCE.

But I want to have a column next to it that contains which price that was choosen. I used CASE and nested it... worked fine until I reached the 10th level, there is a limit there.

"Case expressions may only be nested to level 10."

I'm sure som people will puke when they see this code and I'm open to suggestions on how to do it in another way. I can always do it in two queries, but it should be possible to do it in one.

I was looking at IF, THEN, ELSE, but I don't find any way to use it in a query, just to determine WHICH query will be run.

Here is my SP (how can I get it in a nice grey area like som people post?):

CREATE PROCEDURE dbo.ProcCOST_SET_TC AS

/* Empty TC table */
truncate table dbo.COST_TC

/* Collect info */
INSERT INTO dbo.COST_TC
SELECT REGION,PROJECT,CPN,
COALESCE (
Contract_usd,
SITEINPUT_sitecontract_usd,
SITEINPUT_lastPO_usd,
SITEINPUT_lastreceipt_usd,
SITEINPUT_other_usd,
SITEINPUT_wac_usd,
SYSTEM_Min_ContractPrice_usd,
SYSTEM_Min_OpenOrder_usd,
SYSTEM_Last_Receipt_usd,
SYSTEM_Min_WAC_usd,
[BP Q-1]
),
Case Contract_usd WHEN IsNull(Contract_USD,0) THEN 'Contract' ELSE
Case SITEINPUT_sitecontract_usd WHEN IsNull(SITEINPUT_sitecontract_usd,0) THEN 'SITEINPUT Site Contract' ELSE
Case SITEINPUT_lastPO_usd WHEN IsNull(SITEINPUT_lastPO_usd,0) THEN 'SITEINPUT Last PO' ELSE
Case SITEINPUT_lastreceipt_usd WHEN IsNull(SITEINPUT_lastreceipt_usd,0) THEN 'SITEINPUT Last Receipt' ELSE
Case SITEINPUT_other_usd WHEN IsNull(SITEINPUT_other_usd,0) THEN 'SITEINPUT Other' ELSE
Case SITEINPUT_wac_usd WHEN IsNull(SITEINPUT_wac_usd,0) THEN 'SITEINPUT WAC' ELSE
Case SYSTEM_Min_ContractPrice_usd WHEN IsNull(SYSTEM_Min_ContractPrice_usd,0) THEN 'Min Contract Price' ELSE
Case SYSTEM_Min_OpenOrder_usd WHEN IsNull(SYSTEM_Min_OpenOrder_usd,0) THEN 'Min Open Order' ELSE
Case SYSTEM_Last_Receipt_usd WHEN IsNull(SYSTEM_Last_Receipt_usd,0) THEN 'Last Receipt' ELSE
Case SYSTEM_Min_WAC_usd WHEN IsNull(SYSTEM_Min_WAC_usd,0) THEN 'Min WAC' ELSE
Case [BP Q-1] WHEN IsNull([BP Q-1],0) THEN 'BP Q-1' ELSE
'NO DATA' END END END END END END END END END END END
FROM COST_AllInfo
GO

--------

Suggestions (don't hit me to hard)?

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Nested Case

May 4, 2007

I'm not sure if this is possible but i'm trying to nest a case statement but keep on getting any error:
Incorrect syntax near the keyword 'Then'

Query:
SELECT F_DIVISION_NO,
Bound,
Primary_SIR,
Case When Bound Then Sum(CASE WHEN dbo.THIT_RATIO_DETL.DED_AGR_AM=0 THEN dbo.THIT_RATIO_DETL.DED_OCR_AM else dbo.THIT_RATIO_DETL.DED_AGR_AM end)end as Test

From
(
Select
DBO.THIT_RATIO_DETL.F_DIVISION_NO,
Sum(CASE WHEN dbo.THIT_RATIO_DETL.STATUS_CD = "B" or dbo.THIT_RATIO_DETL.STATUS_CD = "K" Then 1 ELSE 0 END) as Bound,

Sum(CASE WHEN dbo.THIT_RATIO_DETL.DED_AGR_AM=0 THEN dbo.THIT_RATIO_DETL.DED_OCR_AM else dbo.THIT_RATIO_DETL.DED_AGR_AM end) as Primary_SIR

FROM dbo.THIT_RATIO_DETL
Group by F_DIVISION_NO
) t

Is it possible to do a nested case statement?

Thanks!

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Nested Case How-To

Feb 20, 2008

Hi, I'm not new to SQL however I get confused when I transfer from different DBMS like Oracle, SQL Server, Firebird, MySQL and Access.

in SQL Server T-SQL, How do I go about a nested select case like the ff: And I supposed to use this as source for a Cross-Tab.

CREATE PROCEDURE SP_SAMPLE(
@DateStart datetime,
@DateEnd datetime,
@Param1 char(3),
@Param2 char(1),
@Param3 decimal(7,4))
AS
BEGIN

SELECT
Field1,
Field2,
Field3,
CASE
WHEN FieldSomething = 0.0000 THEN '*'
WHEN FieldSomething < @Param3 THEN '_'
ELSE
CASE @Param2
WHEN 'A' THEN SomeOtherField1
WHEN 'B' THEN SomeOtherField2
WHEN 'C' THEN SomeOtherField3
END
END Alias1
FROM SampleTable
WHERE UPPER(Field2) = UPPER(@Param1)
AND Field1 BETWEEN @DateStart AND @DateEnd
ORDER BY Field2, Field3, Field1

END

it has this error:

Error converting data type varchar to numeric.

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Nested Case When Statement

Apr 16, 2014

I'm fairly new to SQL. I have a function in Excel that I'm trying to translate to SQL to run my query.

Basically what i want to do is if Date1 and Date2 are blank then display Date Not Tracked.

Else if Date1 is blank however Date2 has a value then pull Date2 other wise Date1

This is my Excel function:

=IF(AND(A2="",B2=""),"Date Not Tracked",IF(A2="",B2,A2))

A2 = Product.Date1
B2 = Product.Date2

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How To Use Nested CASE Statemenet?

Jun 14, 2007

Hi all,

I have a Sproc. to get records and I was looking to use a nested CASE statement

The thing is that first I want to check the availability of single quote in my where statement and replace it with double quote. The second case is to check for a given condition and make some calculation. The following statement is not running. So would you mind helping me in this regard?

Thank you in advance:

(CASE WHEN CHARINDEX(''ca.caCode'',''' + replace(@WhereStmt, char(39), char(39) + char(39)) + ''') > 0 THEN ca.ClusterAmount ELSE dbo.vwGrantsMaster.CurrentValueTotalCost END CASE WHEN dbo.vwGrantsMaster.StatusCode IN (3) THEN (IsNull(dbo.vwGrantsMaster.CurrentValueTotalCost, 0))-(IsNull(dbo.vwGrantsMaster.AwardedTotalCostAmount,0)) ELSE dbo.vwGrantsMaster.CurrentValueTotalCost END) AS CurrentValueTotalCost,

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Nested CASE Statement Limits??

May 17, 2001

I nested a case to 15 levels and got an error message saying I could only nest it to 10. Is there a way to increse this??

TIA

Adam

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Nested CASE To Parse A String

Feb 6, 2006

I am attempting to create a view to bring together multiple joined tables based ona one to many relationship

Eg Table1 contains code, address
Table2 contains code, financial details
table3 contains code, financial history

This view is then going to be used to update a table with only one record for each 'code'. i.e. NewTable = code, add1, add2, city, prov, postal, financialvalue, history value1, history value2

My current stumbling block is:

One of the fields in table1 is a free format address field (address).
eg. could be (street addres, city prov, postal)
or
could be (street address 1, address2, address 3, city prov, postal)

I want to be able to assign individual components of the address to corresponding fields

if # of commas = 2 then
address1 = substring(address,1, position of first comma)
cityprov = substring(address,possition of first comma, position of second comman)
postal = substring(address rest of field)

I have a UDF which returns the number of commas but I cannot figure out how to use either a nested case statement to parse the string...

ANy ideas on how best to accompish this?
( this table is needed for some leacy software which can only handle one record with all infor....

greg

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Case Expressions May Only Be Nested To Level 10.

Mar 11, 2008

Hi,

I get the following issue:

Server: Msg 125, Level 15, State 4, Line 16
Case expressions may only be nested to level 10.

I need to create a stored procedure that looks at two fields to generate a rating depending on each value. I have tried to use a case statement but am restricted to a certain number of nesting levels. Is there a way around this?

Code Snippetselect answerID,ram_severity, ram_probability,
case when ram_severity='0' and ram_probability='A' then 10
else case when ram_severity='0' and ram_probability='B' then 10
else case when ram_severity='0' and ram_probability='C' then 10
else case when ram_severity='0' and ram_probability='D' then 10
else case when ram_severity='0' and ram_probability='E' then 10
else case when ram_severity='1' and ram_probability='A' then 10
else case when ram_severity='1' and ram_probability='B' then 10
else case when ram_severity='1' and ram_probability='C' then 10
else case when ram_severity='1' and ram_probability='D' then 10
else case when ram_severity='1' and ram_probability='E' then 10
else case when ram_severity='2' and ram_probability='A' then 10
else case when ram_severity='2' and ram_probability='B' then 10
else case when ram_severity='2' and ram_probability='C' then 10
else case when ram_severity='2' and ram_probability='D' then 100
else case when ram_severity='2' and ram_probability='E' then 100
else case when ram_severity='3' and ram_probability='A' then 10
else case when ram_severity='3' and ram_probability='B' then 10
else case when ram_severity='3' and ram_probability='C' then 100
else case when ram_severity='3' and ram_probability='D' then 100
else case when ram_severity='3' and ram_probability='E' then 1000
else case when ram_severity='4' and ram_probability='A' then 10
else case when ram_severity='4' and ram_probability='B' then 100
else case when ram_severity='4' and ram_probability='C' then 100
else case when ram_severity='4' and ram_probability='D' then 1000
else case when ram_severity='4' and ram_probability='E' then 1000
else case when ram_severity='5' and ram_probability='A' then 100
else case when ram_severity='5' and ram_probability='B' then 100
else case when ram_severity='5' and ram_probability='C' then 1000
else case when ram_severity='5' and ram_probability='D' then 1000
else case when ram_severity='5' and ram_probability='E' then 1000
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
end
as rating
from table ua

Im sure there must be a way I just cant find it yet. Many thanks in advance

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Case Statements

Oct 19, 2005

Hey folks, having a problem here...

I have 2 piece of code designed to do the same thing. My problem is, i'm not getting the same results.

Code 1 where the results are correct

Code:

select Count(*) as TotalCount, Sum(DistAmt) as TotalSum
from table1
inner join table2
on table2.id = table1.id
where MailTypeID = 3
AND MailEventID = 2
and table1.IsActive = 1

code 2 - Y is correct, but Z is not, and not only is it not correct, but it is returning a number which equals more then the total rows from the table.

Code:

select
Y = sum(case when mailtypeid = 3 and maileventid = 2 and IsActive = 1 then distamt else 0 end),
Z = count(case when mailtypeid = 3 and maileventid = 2 and IsActive = 1 then 1 else 0 end)
from table1
inner join table2
on table2.id = table1.id

I have no idea what is going on.

Thanks!
Caden

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Help With CASE And IF Statements

Dec 9, 2006

Hi,

Is there a way to use more criteria in a CASE statement other than CASE WHEN expression THEN value ELSE value END

I need to test if the count is greater than 0. If so, then perform the case statement, else return zeros. Currently there are entries where the values are blank. These blank values are causing errors in the application and unfortunately, I am not able to update these values.

So far I have the following, but I am getting an error stating "An aggregate may not appear in the WHERE clause unless it is in a subquery contained in a HAVING clause or select list, and the column being aggregated is an outer reference."

Thanks in advance!

Code:

IF @Qid = 4
SELECT @Exp as Status, COUNT(*) AS Total, @CourseID as CourseID,

(SELECT
question
FROM
tableQuestions
WHERE
qid = @Qid) AS Question,

IF COUNT(*)>0 THEN

1.0 * SUM(CASE WHEN A.Q1 > 1 THEN 1 ELSE 0 END) / COUNT(*) AS Positive,
1.0 * SUM(CASE WHEN A.Q1 = 0 THEN 1 ELSE 0 END) / COUNT(*) AS Neutral,
1.0 * SUM(CASE WHEN A.Q1 < 0 THEN 1 ELSE 0 END) / COUNT(*) AS Negative,
1.0 * SUM(CASE WHEN A.Q1 = 0 THEN 1 ELSE 0 END) / COUNT(*) AS NA
ELSE
0 AS Positive,
0 AS Neutral,
0 AS Negative,
0 AS NA

END IF

FROM
table1 A INNER JOIN table2 B ON A.SessionID = B.SessionID

WHERE
(B.CourseID = @CourseID) AND (A.SubmitDate >= @BeginDate) AND (A.SubmitDate <=@EndDate)

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[Code] ....

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