Condition (if / Else) In SQL?
Aug 4, 2007
Hi all,
I'm building a DataSet on Visual Studio and don't know how to do a condition (if/else) with SQL...
I have a search form, with a DropDownList and have 2 options in it: Search by Title or Search by Author. If the "Title" is selected, then the value is "title and if "Author" is selected, then the value is "author".
Here is what I have right now for the DataSet, as seperated queries but I think I can combine them to be one single query
1.This will returns the songs that matches the title:
SELECT LYRICS_PK, LYRICS_TITLE, LYRICS_TITLE2, LYRICS_WRITER, LYRICS_WRITER2, LYRICS_COWRITER, LYRICS_DATE_ADDED, UserId_FK,
LYRICS_APPROVED, LYRICS_TYPE, LYRICS_VIEWS, LYRICS_ADDED_BY
FROM t_lyrics
WHERE ((@LYRICS_TITLE IS NULL) OR (LYRICS_TITLE LIKE '%' + @LYRICS_TITLE + '%') OR (LYRICS_TITLE2 LIKE '%' + @LYRICS_TITLE + '%')) AND (@LYRICS_TYPE = 'title')
2. This returns the songs that matches the author:
SELECT LYRICS_PK, LYRICS_TITLE, LYRICS_TITLE2, LYRICS_WRITER,
LYRICS_WRITER2, LYRICS_COWRITER, LYRICS_DATE_ADDED, UserId_FK,
LYRICS_APPROVED, LYRICS_TYPE, LYRICS_VIEWS, LYRICS_ADDED_BY
FROM t_lyrics
WHERE ((@LYRICS_AUTHOR IS NULL) OR (LYRICS_AUTHOR LIKE '%' +
@LYRICS_AUTHOR + '%') OR (LYRICS_AUTHOR2 LIKE '%' + @LYRICS_AUTHOR + '%'))
AND (@LYRICS_TYPE = 'author')
This is very inefficient because I have 2 queries, and I need to build 2 ObjectDataSources as well as 2 different GridViews to display the results. I think we can do something like
SELECT .... ...
FROM t_lyrics
if (@LYRICS_TYPE = 'title')
DO THE WHERE CLAUSE THAT RETURNS MATCHES WITH TITLE
else if (@LYRICS_TYPE = 'author')
DO THE WHERE CLAUSE THAT RETURNS MATCHES WITH AUTHOR
But I don't know how to write that in T-SQL.
Any help would be greatly appreciated,
Thank you very much,
Kenny.
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Feb 9, 2006
For example..
select * from mytable where MyNum = 7
If this brings back more than 1 row, I want to display a message that says,
Print 'There is more than one row returned'
Else (If only 1 row returned), I don't want to print anything.
Can I do this? Thx!
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Apr 19, 2007
Dear friends,
I'm having a problem... maybe it's very simple, but with soo many work, right now I can't think well...
I need to filter rows in a dataflow...
I created a condition spli to that... maybe there is a better solution...
And the condition is: Datex != NULL(DT_DATE)
(Some DATE != NULL)
[Eliminar Datex NULL [17090]] Error: The expression "Datex != NULL(DT_DATE)" on "output "Case 1" (17123)" evaluated to NULL, but the "component "Eliminar Datex NULL" (17090)" requires a Boolean results. Modify the error row disposition on the output to treat this result as False (Ignore Failure) or to redirect this row to the error output (Redirect Row). The expression results must be Boolean for a Conditional Split. A NULL expression result is an error.
What is wrong??
Regards,
Pedro
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Jun 22, 2015
I am trying to write an visibility function to have message shown based on two different IIF conditions:
If behavior is to Add a customer ( if message =NAME ALREADY EXISTS, return " NAME ALREADY EXISTS", otherwize return " NAME CREATED")If behavior is to Delete a customer (( if message =NAME DOES NOT EXIST, return "NAME DOES NOT EXIST", otherwize return "NAME SUCCESSFULLY DELETED")
I tried the following which doesn't work:
=IIF((UCase(First(Fields!Message.Value, "DataSetName")) = "NAME ALREADY EXISTS"), "WARNING: NAME ALREADY EXIST", "NAME CREATED"),
IIF((UCase(First(Fields!Message.Value, "DataSetName")) = " NAME DOES NOT EXIST"), "WARNING: NAME DOES NOT EXIST", " NAME DELETED")
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Oct 17, 2015
I write a query to get some data as the following. but i need when a user check specified condition a query parameter change to specified condition :
create proc proc_ReservationDetails
(
@status nvarchar(50) = null
)
as
begin
select reservationId, reservationStatus, reservationDesc
[Code] .....
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May 10, 2006
Hi
I am developing a scientific application (demographic forecasting) and have a situation where I need to update a variety of rows, say the ith, jth and kth row that meets a particular condition, say, x.
I also need to adjust rows, say mth and nth that meet condition , say y.
My current solution is laborious and has to be coded for each condition and has been set up below (If you select this entire piece of code it will create 2 databases, each with a table initialised to change the 2nd,4th,8th and 16th rows, with the first database ignoring the condition and with the second applying the change only to rows with 'type1=1' as the condition.)
This is an adequate solution, but if I want to change the second row meeting a second condition, say 'type1=2', I would need to have another WITH...SELECT...INNER JOIN...UPDATE and I'm sure this would be inefficient.
Would there possibly be a way to introduce a rank by type into the table, something like this added column which increments for each type:
ID
Int1
Type1
Ideal Rank by Type
1
1
1
1
2
1
1
2
3
2
1
3
4
3
1
4
5
5
1
5
6
8
2
1
7
13
1
6
8
21
1
7
9
34
1
8
10
55
2
2
11
89
1
9
12
144
1
10
13
233
1
11
14
377
1
12
15
610
1
13
16
987
2
3
17
1597
1
14
18
2584
1
15
19
4181
1
16
20
6765
1
17
The solution would then be a simple update based on an innerjoin reflecting the condition and rank by type...
I hope this posting is clear, albeit long.
Thanks in advance
Greg
PS The code:
USE
master
GO
CREATE DATABASE CertainRowsToChange
GO
USE CertainRowsToChange
GO
CREATE TABLE InitialisedValues
(
InitialisedValuesID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL
)
GO
CREATE PROCEDURE Initialise
AS
BEGIN
INSERT INTO InitialisedValues (Int1 )
SELECT 2
INSERT INTO InitialisedValues (Int1 )
SELECT 4
INSERT INTO InitialisedValues (Int1 )
SELECT 8
INSERT INTO InitialisedValues (Int1 )
SELECT 16
END
GO
EXEC Initialise
/*=======================================================*/
CREATE TABLE AllRows
(
AllRowsID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL
)
GO
CREATE TABLE RowsToChange
(
RowsToChangeID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL
)
GO
CREATE PROCEDURE InitialiseRowsToChange
AS
BEGIN
INSERT INTO RowsToChange (Int1 )
SELECT 2
INSERT INTO RowsToChange (Int1 )
SELECT 4
INSERT INTO RowsToChange (Int1 )
SELECT 8
INSERT INTO RowsToChange (Int1 )
SELECT 16
END
GO
EXEC InitialiseRowsToChange
GO
CREATE PROCEDURE PopulateAllRows
AS
BEGIN
INSERT INTO AllRows (Int1 )
SELECT 1
INSERT INTO AllRows (Int1 )
SELECT 1
INSERT INTO AllRows (Int1 )
SELECT 2
INSERT INTO AllRows (Int1 )
SELECT 3
INSERT INTO AllRows (Int1 )
SELECT 5
INSERT INTO AllRows (Int1 )
SELECT 8
INSERT INTO AllRows (Int1 )
SELECT 13
INSERT INTO AllRows (Int1 )
SELECT 21
INSERT INTO AllRows (Int1 )
SELECT 34
INSERT INTO AllRows (Int1 )
SELECT 55
INSERT INTO AllRows (Int1 )
SELECT 89
INSERT INTO AllRows (Int1 )
SELECT 144
INSERT INTO AllRows (Int1 )
SELECT 233
INSERT INTO AllRows (Int1 )
SELECT 377
INSERT INTO AllRows (Int1 )
SELECT 610
INSERT INTO AllRows (Int1 )
SELECT 987
INSERT INTO AllRows (Int1 )
SELECT 1597
INSERT INTO AllRows (Int1 )
SELECT 2584
INSERT INTO AllRows (Int1 )
SELECT 4181
INSERT INTO AllRows (Int1 )
SELECT 6765
END
GO
EXEC PopulateAllRows
GO
SELECT * FROM AllRows
GO
WITH Temp(OrigID)
AS
(
SELECT OrigID FROM
(SELECT Row_Number() OVER (ORDER BY AllRowsID Asc ) AS RowScore, AllRowsID AS OrigID, Int1 AS OrigValue FROM Allrows) AS FromTable
INNER JOIN
RowsToChange AS ToTable
ON FromTable.RowScore = ToTable.Int1
)
UPDATE AllRows
SET Int1=1000
FROM
Temp as InTable
JOIN Allrows as OutTable
ON Intable.OrigID = OutTable.AllRowsID
GO
SELECT * FROM AllRows
GO
USE
master
GO
CREATE DATABASE ComplexCertainRowsToChange
GO
USE ComplexCertainRowsToChange
GO
CREATE TABLE InitialisedValues
(
InitialisedValuesID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL
)
GO
CREATE PROCEDURE Initialise
AS
BEGIN
INSERT INTO InitialisedValues (Int1 )
SELECT 2
INSERT INTO InitialisedValues (Int1 )
SELECT 4
INSERT INTO InitialisedValues (Int1 )
SELECT 8
INSERT INTO InitialisedValues (Int1 )
SELECT 16
END
GO
EXEC Initialise
/*=======================================================*/
CREATE TABLE AllRows
(
AllRowsID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL,
Type1 int NOT NULL
)
GO
CREATE TABLE RowsToChange
(
RowsToChangeID int identity(1 ,1) NOT NULL PRIMARY KEY,
Int1 int NOT NULL,
Type1 int NOT NULL
)
GO
CREATE PROCEDURE InitialiseRowsToChange
AS
BEGIN
INSERT INTO RowsToChange (Int1,Type1 )
SELECT 2, 1
INSERT INTO RowsToChange (Int1,Type1 )
SELECT 4, 1
INSERT INTO RowsToChange (Int1,Type1 )
SELECT 8, 1
INSERT INTO RowsToChange (Int1,Type1 )
SELECT 16, 1
END
GO
EXEC InitialiseRowsToChange
GO
CREATE PROCEDURE PopulateAllRows
AS
BEGIN
INSERT INTO AllRows (Int1, Type1 )
SELECT 1, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 1, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 2, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 3, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 5, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 8, 2
INSERT INTO AllRows (Int1, Type1 )
SELECT 13, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 21, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 34, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 55, 2
INSERT INTO AllRows (Int1, Type1 )
SELECT 89, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 144, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 233, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 377, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 610, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 987, 2
INSERT INTO AllRows (Int1, Type1 )
SELECT 1597, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 2584, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 4181, 1
INSERT INTO AllRows (Int1, Type1 )
SELECT 6765, 1
END
GO
EXEC PopulateAllRows
GO
SELECT * FROM AllRows
GO
WITH Temp(OrigID)
AS
(
SELECT OrigID FROM
(SELECT Row_Number() OVER (ORDER BY AllRowsID Asc ) AS RowScore, AllRowsID AS OrigID, Int1 AS OrigValue FROM Allrows WHERE Type1=1) AS FromTable
INNER JOIN
RowsToChange AS ToTable
ON FromTable.RowScore = ToTable.Int1
)
UPDATE AllRows
SET Int1=1000
FROM
Temp as InTable
JOIN Allrows as OutTable
ON Intable.OrigID = OutTable.AllRowsID
GO
SELECT * FROM AllRows
GO
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May 5, 2007
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can we use a where condition in the statement.If so how can we use it.
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Sep 13, 2004
hi
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01 11/11/2011 10.23 Entry
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Sep 28, 2007
hi,
i'm working on a query and have discovered something fairly simple regarding "and" / "or" condition.
if I use e.g.
id_product in ('1111','2222')
as a result i should get all products that match id = 1111 and id = 2222.
But if I do it like
id_product in ('1111')
and id_product in ('2222')
as a result i get 0 rows returned, where as i want to find invoices that have both products, and not those which have either product 1111 or 2222 or even both :)
thank you for any suggestions!
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Nov 5, 2007
I have a query something like
select a, b, c from mytable where a=@prmA
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Regards,
Hakan
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Mar 11, 2008
Hi All,
I have stored Candidates Resume in binary(Image) format in database.
I have a search feature to search resume.
For Example:
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without these words: Java
Here I get Candidate which CONTAINS("ASP.Net" AND "SQL Server" AND "2 Years" AND NOT "Java")
Now I want to search candidates only
without these words: Java
it means the condition is CONTAINS(NOT Java)
is this possible?
if yes, how?
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Dec 20, 2007
Hi,
In following query, I use three conditions in WHERE caluse. When I use only CreditUnion.Id=@CreditUnionID
Then I get the right value set. But when I join other two conditions , i get all the values instead of relevant data for that parameter.
Can anyone say why it happenes?
Code Block
SELECT
Member.LastName + ' ' + Member.FirstName AS MemberName, CASE WHEN CuStatus = 'Existing' THEN 'Existing' ELSE 'New' END AS MemberType, EnumCUMembershipStatus.UIText AS Status, CDOrder.DecidedOnCU, SysUserLogon.LastName + ' ' + SysUserLogon.FirstName AS CUDecisionOfficer, 'CD' AS ProductType, CreditUnion.Name
FROM
Member INNER JOIN
CDOrder ON Member.LastCDOrderFK = CDOrder.Id AND Member.Id = CDOrder.MemberFK INNER JOIN
CreditUnion ON Member.CreditUnionFK = CreditUnion.Id INNER JOIN
EnumCUMembershipStatus ON Member.CuStatus = EnumCUMembershipStatus.Name INNER JOIN
SysUserLogon ON CreditUnion.Id = SysUserLogon.CreditUnionFK
WHERE (CreditUnion.Id = @CreditUnionID) AND (Member.CuStatus = 'Approved') OR (Member.CuStatus = 'Declined')
UNION
SELECT
Member_1.LastName + ' ' + Member_1.FirstName AS MemberName,
CASE WHEN CuStatus = 'Existing' THEN 'Existing' ELSE 'New' END AS MemberType, EnumCUMembershipStatus_1.UIText AS Status, LoanApplication.DecidedOnCU, SysUserLogon_1.LastName + ' ' + SysUserLogon_1.FirstName AS CUDecisionOfficer, 'Loan' AS ProductType,
CreditUnion_1.Name
FROM
Member AS Member_1 INNER JOIN
LoanApplication ON Member_1.LastLoanApplicationFK = LoanApplication.Id AND Member_1.Id = LoanApplication.MemberFK LEFT OUTER JOIN CreditUnion AS CreditUnion_1 ON Member_1.CreditUnionFK = CreditUnion_1.Id LEFT OUTER JOIN EnumCUMembershipStatus AS EnumCUMembershipStatus_1 ON Member_1.CuStatus = EnumCUMembershipStatus_1.Name LEFT OUTER JOIN SysUserLogon AS SysUserLogon_1 ON LoanApplication.SysUserLogonFK = SysUserLogon_1.Id AND LoanApplication.SysUserLogonCUFK = SysUserLogon_1.Id AND CreditUnion_1.Id = SysUserLogon_1.CreditUnionFK
WHERE (CreditUnion_1.Id = @CreditUnionID) AND
Member_1.CuStatus = 'Approved' OR Member_1.CuStatus = 'Declined'
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Aug 11, 2006
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Feb 18, 2008
Hi This is madhavi
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******************************************************************************************************************
Create PROCEDURE YellowPages_Search(@city nvarchar(50),@SearchWord nvarchar(200),@Name varchar(50) OUTPUT,@CompanyName varchar(50) OUTPUT,@Address varchar(1000) OUTPUT,@PhoneNo varchar(50) OUTPUT,@MobileNo varchar(50) OUTPUT,@Fax varchar(50) OUTPUT,@Email varchar(50) OUTPUT,@WebSite varchar(50) OUTPUT)AS
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exec(@sql)
GO
*************************************************************************************************************************************************************************
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Jul 26, 2005
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i did try
<code>
SELECT * FROM Person JOIN Year ON Person.Id = Year.PersonID WHERE Year.Year = 2005 AND Year.Year <> 2004
</code>
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Aug 25, 2006
Hi,
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Case 1:
PK | FK | Type | Text
--------------------------
1 | 226 | 0 | some text goes here
2 | 226 | 1 | NULL
Case 2:
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--------------------------
3 | 334 | 0 | some text goes here
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Apr 18, 2008
create function quantprice
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RETURNS TABLE
AS
RETURN
(Select distinct t.itemnmbr,t.totalprice as totalcost
from
(
select distinct
vs.itemnmbr, sum(vs.totalsumprce) as totalprice
from vwquantityprice vs
Where vs.itemnmbr = @itemnmbr and (vs.docdate between @startdate and @enddate)
group by vs.itemnmbr
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)
select * from quantityprice('06-5840','4/1/2007','4/1/2008')
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create function quantprice
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2)
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where id=@id and month=@month and Eid=
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End
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********** *******************
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declare @Guild varchar(1000)
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[code]...
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May 1, 2006
I need to check groups of records for a condition that doesn't exist in any record in the group.
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1 A
1 C
1 M
1 P
1 Z
If the group does not contain a code 'Z', I want to select the accountno of the group. In the above example, the accountno should not be selected. If none of the records had a code 'Z', the accountno should be selected.
I can't simply say 'where code <> 'Z'. When the system looks at the first record in the above example, it sees that A is not equal to Z and the accountno would be selected. But this is wrong. As there is a 'Z' in the group, the accountno should not be selected.
I've tried using 'top 1' and count. Nothing has worked.
Any ideas?
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Jul 23, 2007
Hi all
i need simple query
pls help me
table name==>table1
field and value
id|title|topic|oid|posttime====>field(column)
----------------------------------
1 |abab|xxxxxx| 1 |2007-07-21 17:45:39.263===> datas or value
2 |adsd|ssssss| 2 |2007-07-21 16:45:39.263
3 |fdgd|aaaaaa| 3 |2007-07-21 17:40:39.223
4 |jhgd|bbbbbb| 2 |2007-07-21 18:00:09.333
5 |gdgd|ttttbb| 1 |2007-07-23 17:48:09.090
==============================================
i need result for filtering title(field name) and topic(field name) based on posttime(field name) is desc but oid(field name) is asc;
how any query
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