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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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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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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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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Dec 20, 2013
I have a case statement which I need to alter in my query. The field [sr.spec_value] contains either 1 or 0. When it is 1 I want the case expression to return 'YES' when 0 then 'NO'. I've tried a couple of options from the forum but am not getting it right. Here is the original case statement from my query:
case when sr.spec_value = 1 then 'YES' when 0 then 'NO' end [Fixed].
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Apr 29, 2015
I have a query where I need to see in 2 seperate columns, the Actual date of deliveries and collections, and the Invoice Week number of the same. The problem is that in our ERP system delivery date (di.ddate) is a date field, and the collection date is nvarchar. This is my query and sample results below, as you can see I'm getting nulls for the collection lines. How can I do this efficiently
select di.dticket, di.item,
case di.item when 'DEL' then di.ddate when 'COL' then CONVERT(datetime,di.text2,103) end ActDate,
Case when di.item = 'DEL' then
(select YearWeek from MCSReports.RptRevenueGuideWeekLookup
where di.ddate between FromDate and ToDate) end InvWeek
from deltickitem di
where item in ('DEL','COL')
Sample results below:
dticket item ActDate InvWeek
-------------------- -------------------------------------------------- ----------------------- --------
01-000002 DEL 2011-07-05 15:53:00.000 2011-27
01-000002 COL NULL NULL
01-000004 DEL 2011-07-05 16:04:00.000 2011-27
01-000004 COL NULL NULL
01-000005 DEL 2011-07-05 16:08:00.000 2011-27
01-000005 COL NULL NULL
01-000006 DEL 2011-07-05 16:19:00.000 2011-27
01-000006 COL NULL NULL
01-000007 DEL 2011-07-05 16:24:00.000 2011-27
01-000007 COL NULL NULL
01-000008 DEL 2011-07-05 16:29:00.000 2011-27
01-000021 DEL 2011-07-05 08:48:00.000 2011-27
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Oct 10, 2006
Hello.
I have data in a SSIS package that I need to alter to something else.
The source column is a VARCHAR(3) column and it only contains two possible values, "ACT" or "CLS".
The destination column is a CHAR(1) column. Where the value of the source column is 'ACT' I want to put '1' in the destination and where the value of the source column is 'CLS' I want to put '0'.
I can do this easily in T-SQL using a CASE statement but the source data is an Ingres database and CASE isn't a valid SQL keyword.
Can I use a data conversion task to do this in SSIS? and if so, what's the syntax?
Thanks
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Nov 24, 2004
I have the following query:
(SELECT MIN(CFGDates.AccountPdEnd)
FROM CFGDates LEFT JOIN
AR ON AR.Period = CFGDates.Period
WHERE AR.Period = '200408')
I need to convert this into a case statement.
I tried various ways but did not get the result that I was after
Thanks,
Laura
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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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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Aug 31, 2007
can plz anyone tell me how to fix the following update script. thanks
Update table
set rating =
case
when rating in
(select code from tbl_Codes
where code = '0')
then Rating = '0'
when Rating in
(select code from tbl_Codes
where code = '1')
then InternalRating = '1'
else rating
end
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Feb 17, 2014
I have a very large database running in a production environment. The backup files are getting to be very difficult to manage. They are at 70gb as of now and growing at a rate of 10gb per month. This is due to document images being stored in the database in one table. I have read a little about a new feature in SQL Server 2012 called Filetable. Can we migrate to SQL Server 2012 and convert to the filetable structure, will this decrease the size of the backups? Would backup of the document images be taken care of by our nightly file system backups now?
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Nov 15, 2013
I want to update multiple column in one table using with case statement. i need query pls..
stdidnamesubject result marks
1 arun chemistry pass 55
2 alias maths pass 70
3 babau history pass 55
4 basha hindi NULL NULL
5 hussain hindi NULL nULL
6 chandru chemistry NULLNULL
7 mani hindi NULLNULL
8 rajesh history NULLNULL
9 rama chemistry NULLNULL
10 laxman maths NULLNULL
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May 2, 2008
I am trying to create a stored procedure that will take a text value passed from an application and update a table using the corresponding integer value using a CASE statement. I get the error: Incorrect syntax near the keyword 'SET' when I execute the creation of the SP. What am I missing here? This looks to me like it should work. Here is my code.
CREATE PROCEDURE OfficeMove
-- Add the parameters for the stored procedure here
@UserName nvarchar(10),
@NewLocation nchar(5),
@NewCity nvarchar(250)
AS
BEGIN
-- SET NOCOUNT ON added to prevent extra result sets from
-- interfering with SELECT statements.
SET NOCOUNT ON;
-- Insert statements for procedure here
Execute as user = '***'
DELETE FROM [SQLSZD].[SZDDB].dbo.Employee_Office_Assignments
WHERE User_Name = @UserName
INSERT INTO [SQLSZD].[SZDDB].dbo.Employee_Office_Assignments
SET User_Name = @UserName,
Room_ID = @NewLocation
UPDATE [SQLSZD].[SZDDB].dbo.Employee_Locations
SET Office_ID =
CASE
WHEN @NewCity = 'Columbus' THEN 1
WHEN @NewCity = 'Cleveland' THEN 2
WHEN @NewCity = 'Cincinnati' THEN 4
WHEN @NewCity = 'Raleigh' THEN 5
WHEN @NewCity = 'Carrollwood' THEN 6
WHEN @NewCity = 'Orlando' THEN 7
END
WHERE User_Name = @UserName
END
GO
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Jun 11, 2014
So I have two tables with similar columns etc, unfortunately the Insert to the History table fails. Noto sure how to format.
Source Table.
CREATE TABLE [dbo].[SKUCURRENT](
[UID] [int] IDENTITY(1,1) NOT NULL,
[SKU] [nvarchar](100) NOT NULL,
[WHSELOC] [nvarchar](50) NOT NULL,
[WEIGHT] [nvarchar](50) NOT NULL,
[Code] ....
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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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Aug 13, 2001
Is there a method for converting the first character of a account name to uppercase and the the remaining characters to lower case? I've used the substring procedure but for a name like 'MY NEW COMPANY', how could I convert it to 'My New Company' ?
Thanks,
Terry
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Jan 26, 2015
Project has 2 tables process(parent) and processchild(child).
Project workflow recorddsany changes to these tables as a history.
I want to find out all the process that are in status = saved(1) where processchild is at status = started(1).
Here is example.
Process table
PK, processid, status , other data
1, 1, 1,...
2, 1, 2,...
3, 2, 1,...
4, 3, 1,...
ProcessChild table
PK, processid, processchildid status, other data
1, 1, 1, 1,..
2, 1, 1, 2,..
3, 1, 2, 1,...
4, 1, 2, 2,...
5, 2, 1, 1,..
6, 2, 1, 2,...
7, 2, 2, 1,...
8, 3, 1, 1,..
I want to find out all the processes where processchildid=2 and processchild.status =1
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Dec 26, 2014
I need to take a temporary table that has various times stored in a text field (4:30 pm, 11:00 am, 5:30 pm, etc.), convert it to miltary time then cast it as an integer with an update statement kind of like:
Update myTable set MovieTime = REPLACE(CONVERT(CHAR(5),GETDATE(),108), ':', '')
how this can be done while my temp table is in session?
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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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