Using IF ElSE Like Conditions In An Select Statement

Mar 17, 2006

Hi All,

This is my problem. I need the out put of a sql select statement to be "true" or "false" depending on the actual columns value is positive or negative. Does any one how to do this.

Thanks in advance,

-VJ

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Inserting Conditions In A Select Statement

Jun 12, 2007

How can i insert a if-else condition in a select statement or is there a way to specify a condition within a select statement?
Any reply is really appreciated..thank you..

shemay

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Multiple Conditions In IF Statement In T-SQL?

Jul 20, 2005

Hi All,Just wondering if anyone can tell me if you can test for multipleconditions as part of an "IF" statement in T-SQL in SQL Server 2000?ie something like:IF @merr = 1 or @merr=2BeginSELECT statementUPDATE statementEndAny help much appreciated!Much warmth,M.

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Jul 8, 2015

I have a table with the following fields and data:

Offense, Year, Month, Count, Amount
F 2007 January 11 $49,238.00
F 2007 February 12 $24,000.00
F 2007 March 31 $55,184.00
F 2007 April 19 $64,647.00
F 2007 May 33 $100,010.00
F 2007 June 16 $59,678.00
F 2007 July 22 $39,700.00
F 2007 August 3 $9,000.00
F 2007 September 4 $75,000.00
F 2007 October 8 $19,250.00
F 2007 November 50 $106,153.00
F 2007 December 26 $80,000.00

I have data for years 2007-2014. I am designing an SSRS report, and want to use IIF statement to return data. Using the following:

=IIF(Fields!Year.Value="2007" AND Fields!Month.Value="February", "return value of count field", "n/a")

The above does not work, it doesn't return the value of Count field, it does return the n/a.

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Apr 7, 2006

I can't figure this out for the life of me. Wanted to know if it's possible to select certain date conditions in a query, then later reference those conditions and to only select the max of them.

I need to do this dynamically as I do not know what the max value is. I've provided an example below:

Select var1
From table1
where
(
(Date1 = '11/30/2005')
OR
(Date1 = '12/31/2005')
)
and Date1 = (Max of previously selected values e.g. '12/31/2005')

What I can't figure out is how to dynamically retrieve the max of 11/31/2005 and 12/31/2005. Any ideas are greatly appreciated.

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May 12, 2008

Select c.Plan, c.ClaimNumber
from tbFLags c inner join tbMembers m
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Now I want to add these into this statement, what should be done.



Members meeting any of the 3 sets of criteria should not be selected

1) tbFlags.Hosp='1'

2) tbFlags.RD='1' OR tbCMSFlags.RAType in ('D', 'I2')

3) Deceased = tbMembers.DOD is not null.

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1. Select A Field Twice With Different (special) Conditions

Sep 12, 2007

Hi guys,

My challenge is really 3 problems in 1.

I have Table1 and Table2 which are inner joined with an ID.
Each record in Table1 may have up to two corresponding values in Table2, which are Type and Name.

req1- I want to select Table2.Name twice (or more), with each selection conditioned on a specific Type.
req2- I also want all information pertaining to the same ID to be returned in each row
req3- I want all IDs to be returned, even if Table2.Name are empty for Type1 and/or Type2.

So, the source tables look something like this:

Table1.ID | ……
-----------------------
ID001
ID002
ID003
ID004

Table2.ID | Table2.Type | Table2.Name
--------------------------------------------------------
ID001 | Type1 | NameA
ID001 | Type2 | NameB
ID002 | Type1 | NameC
ID003 | Type2 | NameD


Ideally, my results should look like this:

Table1.ID | Table2.Name (Type=1) | Table2.Name (Type=2)
----------------------------------------------------------
ID1 | NameA for Type1 | NameB for Type2
ID2 | NameC for Type1 | (empty)
ID3 | (empty) | NameD for Type2
ID4 | (empty) | (empty)

Right now, I can only get Table2.Name to display once, and it won’t return the empty values, even with outer joins. The structure that I’m using is:

SELECT …
FROM …
WHERE Table2.Name IN
(SELECT Table2.Name
FROM Table1 INNER JOIN Table2 …
WHERE Table2.Name = ‘Type1’)

Sorry the abstractness, but this is the simplest way for me to express the problem.

Any help will be appreciated, thanks!

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Apr 23, 2015

SQL Version:  2008 (not r2)
Problem:  My Select statement seems to be unaffected by some of the conditions in the WHERE Clause.  For instance

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SQL Code:
declare @WIPMonthCurrent date  = '20130101'
SELECT  
     JCCD.JCCo, JCCD.Job, JCCD.Mth, JCCD.Source, sum(JCCD.ActualCost) AS CostToDate

[code]....

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Feb 6, 2015

I have the got below T SQL query to fetch the matching record

DECLARE @MappingTable TABLE
(
Productname nvarchar(10),
identification_key1 int,
identification_key2 int,
identification_key3 int

[Code] .....

-- result - 'Orange'

This is an exact matching record and straight forward

Is it possible to identify the record using T SQL query based on the following scenarios

1) return the record - If all the three where conditions match
2) if record not found check and return the record where 2 columns values in the where condition match

-- Expected Result for below query: 'Orange', because 2 of the columns in where condition have matching values

SELECT Productname
FROM @MappingTable where identification_key1=1 or identification_key2 =2 or identification_key3 =1

-- result - 'Orange'

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Mar 24, 2015

I have this sql....

Select
DISTINCT p.dbPatID, p.dbpatfirstname, p.dbPatLastName,
s.dbSchTypeCnt as SchDetailType, t.dbSchTypeCnt as SchTypeType,
ISNULL(r.dbStatusDesc, 'No Ref') AS dbStatusDesc,
ISNULL(t.dbSchTypeCode, 'No Ref') AS dbSchTypeCode,
ISNULL(t.dbSchTypeDesc, 'No Ref') AS dbSchTypeDesc,

[code]....

however, I only want the lastest a.dbPatApptTime and only when a.dbPFStatus = 1 and a.ClientRef = 'EPS'

So the stand alone sql could be....

Select Top(1) dbPatApptTime as LastVisitDate, dbSchTypeDesc as LastVisitDesc
from appointments
where dbPFStatus = 1 and clientref = 'EPS'
order by dbPatApptTime desc

I'm just not sure how to incorporate that into my sql or whether there is a better way,

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Jun 5, 2008

Hi,
I have 1 table with 5 rows. One of the rows has dateTime values. I want to know how many rows there are with a value in that column < today AND how many rows there are with a value in that column > today.
I'm not sure how to do this.

SELECT Count(*) WHERE dateColumn <= today AND dateColumn > today gives me everything.
I like to end up with a column containing the count of rows <= today
and a column with rows where date > today.

Is this possible in SQL or do I have to retrieve all rows and then loop over the resultset and check each row?

Thanks,
Marc

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Jan 10, 2008

My question is fairly simple. When I join between two tables, I always use the ON syntax. For example:


SELECT

*
FROM

Users

JOIN UserRoles

ON (Users.UserRoleId = UserRoles.UserRoleId)


No problems there. However, if I then decide to further filter the selection based on some trait of the UserRole, I have two options: I can add the condition as a WHERE statement, or I can add the condition within the ON block.

--Version 1:

SELECT

*
FROM

Users

JOIN UserRoles

ON (Users.UserRoleId = UserRoles.UserRoleId)
WHERE

UserRoles.Active = 'TRUE'


-- Version 2

SELECT

*
FROM

Users

JOIN UserRoles

ON (Users.UserRoleId = UserRoles.UserRoleId

AND UserRoles.Active = 'TRUE')


So, the question is, which is faster/better, if either? The Query Analyzer shows the two queries have the exact same execution plan, which makes sense, since they're both joining the same tables. However, I'm wondering if adding the condition in the ON statement results in fewer rows the JOIN statement initially needs to join up, thus reducing the overall initial size of the results table before the WHERE conditions are applied.

So is there a difference, performance wise? I imagine that if Users had a thousand records, and UserRoles had 10 records, then the JOIN would create a cartesian product of the two tables, resulting in 10,000 records in the table before the WHERE conditions are applied. However, if only three of the UserRoles is set to Active, would that mean that the resulting table, before applying WHERE conditions, would only contain 3000 records?

Thanks for whatever information you can provide.

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Sep 3, 2007

Hello... im having a problem with my query optimization....

I have a query that looks like this:


SELECT * FROM table1
WHERE location_id IN (SELECT location_id from location_table WHERE account_id = 998)


it produces my desired data but it takes 3 minutes to run the query... is there any way to make this faster?... thank you so much...

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Aug 29, 2006

I am currently having this problem with gridview and detailview. When I drag either onto the page and set my select statement to pick from one table and then update that data through the gridview (lets say), the update works perfectly.  My problem is that the table I am pulling data from is mainly foreign keys.  So in order to hide the number values of the foreign keys, I select the string value columns from the tables that contain the primary keys.  I then use INNER JOIN in my SELECT so that I only get the data that pertains to the user I am looking to list and edit.  I run the "test query" and everything I need shows up as I want it.  I then go back to the gridview and change the fields which are foreign keys to templates.  When I edit the templates I bind the field that contains the string value of the given foreign key to the template.  This works great, because now the user will see string representation instead of the ID numbers that coinside with the string value.  So I run my webpage and everything show up as I want it to, all the data is correct and I get no errors.  I then click edit (as I have checked the "enable editing" box) and the gridview changes to edit mode.  I make my changes and then select "update."  When the page refreshes, and the gridview returns, the data is not updated and the original data is shown. I am sorry for so much typing, but I want to be as clear as possible with what I am doing.  The only thing I can see being the issue is that when I setup my SELECT and FROM to contain fields from multiple tables, the UPDATE then does not work.  When I remove all of my JOIN's and go back to foreign keys and one table the update works again.  Below is what I have for my SQL statements:------------------------------------------------------------------------------------------------------------------------------------- SELECT:SELECT People.FirstName, People.LastName, People.FullName, People.PropertyID, People.InviteTypeID, People.RSVP, People.Wheelchair, Property.[House/Day Hab], InviteType.InviteTypeName FROM (InviteType INNER JOIN (Property INNER JOIN People ON Property.PropertyID = People.PropertyID) ON InviteType.InviteTypeID = People.InviteTypeID) WHERE (People.PersonID = ?)UPDATE:UPDATE [People] SET [FirstName] = ?, [LastName] = ?, [FullName] = ?, [PropertyID] = ?, [InviteTypeID] = ?, [RSVP] = ?, [Wheelchair] = ? WHERE [PersonID] = ? ---------------------------------------------------------------------------------------------------------------------------------------The only fields I want to update are in [People].  My WHERE is based on a control that I use to select a person from a drop down list.  If I run the test query for the update while setting up my data source the query will update the record in the database.  It is when I try to make the update from the gridview that the data is not changed.  If anything is not clear please let me know and I will clarify as much as I can.  This is my first project using ASP and working with databases so I am completely learning as I go.  I took some database courses in college but I have never interacted with them with a web based front end.  Any help will be greatly appreciated.Thank you in advance for any time, help, and/or advice you can give.Brian 

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hiI need to write a stored procedure that takes input parameters,andaccording to these parameters the retrieved fields in a selectstatement are chosen.what i need to know is how to make the fields of the select statementconditional,taking in consideration that it is more than one fieldaddedfor exampleSQLStmt="select"if param1 thenSQLStmt=SQLStmt+ field1end ifif param2 thenSQLStmt=SQLStmt+ field2end if

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Oct 29, 2007

Hi guys,
I have the query below (running okay):



Code Block
SELECT DISTINCT Field01 AS 'Field01', Field02 AS 'Field02'
FROM myTables
WHERE Conditions are true
ORDER BY Field01

The results are just as I need:


Field01 Field02

------------- ----------------------

192473 8461760

192474 22810



Because other reasons. I need to modify that query to:



Code Block
SELECT DISTINCT Field01 AS 'Field01', Field02 AS 'Field02'
INTO AuxiliaryTable
FROM myTables
WHERE Conditions are true
ORDER BY Field01
SELECT DISTINCT [Field02] FROM AuxTable
The the results are:

Field02

----------------------

22810
8461760

And what I need is (without showing any other field):

Field02

----------------------

8461760
22810


Is there any good suggestion?
Thanks in advance for any help,
Aldo.

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Jul 4, 2006

Hello friends,
I want to use select statement in a CASE inside procedure.
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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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I am attempting to run update statements within a SELECT CASE statement.

Select case x.field
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  UPDATE TABLE1
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  ELSE
   UPDATE TABLE2
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END
FROM OuterTable x

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Oct 20, 2014

In the below code i want to use select statement for getting customer

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INSERT INTO EMImportListing ("
sql += " CustId,Title,Description,JobCity,JobState,JobPostalCode,JobCountry,URL,Requirements, "
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sql += " Email,OrgName,customerAddress1,customerAddress2,customerCity,customerState,customerPostalCode,

[code]....

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LEFT JOIN tblAccounts accounts on accounts.ID = sites.AccountID
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Jul 11, 2007

Hello
How can i say this I would like my if statement to say:  if what the client types in Form1.Cust is = to the Select Statement which should be running off form1.Cust then show the Cust otherwise INVALID CUSTOMER NUMBER .here is my if statement.
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Hi,

I am a newbie to this site and hope someone can help....

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if(TL_flag= '1', "yes") as [Trial Leave]

it is coming up with an error.... I can use Select case but I should not need to as this should work?

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Aug 23, 2013

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(
SELECT COUNT(gifts.donor_id) AS Count2
FROM gifts
WHERE gifts.donor_id = ed.id_number
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Sep 7, 2006

 

Hi All,

Can some one point me in the right direction in how to construct my SQL query within my cursor?

I Have got a cursor which i am using to iterate through a table, What i am trying to do is in my statement(used to open the cursor) is compare 2 tables (the one which my cursor is iterating) to see if there is a matching row in the other table (using  both tables ID's Like So:

SELECT column_List
FROM Table1
WHERE Table1_id = Table2_id  


 so for each row  my cursor checks if there is a corresponding match in  table2... but i would like to write to an error log

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 how do i add this condition to my statement either using an if...else statement proceeding to the next row?

here is the statment i attempted to write:

SELECT column_List
FROM table1
WHERE
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now i want to incoporate the statements below into the statement above as a condition when table1.id <> table2.id    


IF  table1.id <> table2.id    

BEGIN
   SET @DebugMessage = 'data not live.'
   RAISERROR (@DebugMessage, 16, 1) WITH LOG
  END

essentially what i am trying to sayin my statement is:

 go to the first row

check if it has a match in table 2,

 if there is no match execute a number of statements such as error loging e.t.c

go to the next row

 repeat the previous statements 

 

...i also looked through some Case...When statements am just not sure how to put in the condition

thanks in advance

 

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Jul 5, 2006

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I have tried
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thanks
rusty
 

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Dec 29, 2006

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Mar 13, 2007

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