A simple query in stored procedure - sql

Question

Need to make a stored procedure that will do a simple search on a table, plus have 3 parameters, the first two are a date range, the third is if different from NULL will be included in the WHERE, if equal to NULL then not seek that value, as I can do this search?

Answer 1

Where #parameter1 = ColA
AND #parameter2 = ColB
and ISNULL(#parameter3, ColC) = ColC

Answer 2

try this..
Create Prucedure test
#p1 int,#p2 int,#p3 nvarchar(50)
As
Begin
If #p3 is null
Select * from table where field1=#p1 and field2=#p2
Else
Select * from table where field1=#p1 and field2=#p2 and field3=#p3
End
Sorry for improper formatting this is because i am sending the answer from a cell phone

Answer 3

WHERE #parameter IS NULL or field = #parameter

Answer 4

Yes! you can do that by passing the three variables to the host program and write a customized CURSOR SELECT using them. Then open the cursor and throw the resultset. Your search results are now ready to use. If needed syntactical help, revert with the host language and specifications you are using. Do post the challenges and solution you got for the same, may help others.

Answer 5

Try the following. Note that if Column3 could be null then you need to use the isnull() function on the column name as well as you can't compare null values. So if the data type of Column3 is int then you could use: and isnull(Column3, 0) = isnull(#param3, isnull(Column3, 0)).
create procedure Test
#param1 varchar(50),
#param2 varchar(50),
#param3 varchar(50) = null
as
begin
select *
from Table1
where Column1 = #param1
and Column2 = #param2
and Column3 = isnull(#param3, Column3)
end

Answer 6

The general form of what you are attempting to perform is a dynamic query. See the solution in this problem update statement not executing

Answer 7

I am using the adventure works database.
CREATE PROCEDURE upContactDetails
#FirstName [nvarchar](50),
#LastName [nvarchar](50),
#MiddleName [nvarchar](50)
AS
BEGIN
SET NOCOUNT ON;
SELECT Title
, FirstName
, MiddleName
, LastName
, EmailAddress
FROM Person.Contact
WHERE (#MiddleName IS NULL or MiddleName = #MiddleName)
AND FirstName = #FirstName
AND LastName = #LastName
END
GO

Answer 8

Imagine that You're having a transaction table where you store transaction Number And Transaction Date as shown Below.
CREATE TABLE [dbo].[TrnMast](
[TrnNo] [numeric](10, 0) NOT NULL,
[AcYear] [int] NOT NULL,
[Comp_Code] [varchar](5) NOT NULL,
[InvNo] [varchar](20) NULL,
[TrnDate] [datetime] NULL,
[P_Code] [varchar](5) NULL,
[Amount] [money] NULL,
[Remark] [varchar](50) NULL
CONSTRAINT [PK_TrnMast_1] PRIMARY KEY CLUSTERED
(
[TrnNo] ASC,
[Comp_Code] ASC,
[AcYear] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY]
GO
Now Look at stored procedure with 3 parameters having two date range paramaters and TrnNo Below.
CREATE PROCEDURE [dbo].[SP_TrnMast]
#FTrnDate SmallDateTime = Null,
#TTrnDate SmallDateTime = Null,
#AcYear Int
AS
Begin
Select * From TrnMast
Where (#FTrnDate Is Null Or TrnMast.TrnDate >= #FTrnDate)
And (#TTrnDate Is Null Or TrnMast.TrnDate <= #TTrnDate)
And TrnMast.AcYear = #AcYear
End