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7.6

How to search in a table based on multiple criteria

Asked by bkerson in MS SQL DTS, SQL Query Syntax, SQL Server 2005

Tags: SQL

Hello

I would like to search in a table based on 6 different fields. I need the user to be able to enter 1 or 2 criteria or even 3,4...6 criteria and they should get the result.

Field critera:  

LastName nchar(50),
FirstName nchar(50),
School_Name char(50),
Organization char(70),
Home_Phone char(24),
Transportation_Type char(50)

Note: user can type any character in the field and the query should look for in the database and return something. Example: If there is a LastName named Joseph. As soon the user type the first 3 character or even 1 character in just  the lastname field. The query should should take care of the rest of character

I wrote the code below but my problem is : user needs to fill all 6 fields in order to get a result otherwise user gets an asp.net error message in the page

Any help will be greatly apreciated

Thanks


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create PROCEDURE [dbo].[usp_Search]
	-- Add the parameters for the stored procedure here
			@LastName nchar(50),
            @FirstName nchar(50),
			@School_Name char(50),
			@Organization char(70),
			@Home_Phone char(24),
			@Transportation_Type char(50)
AS
BEGIN
	-- Declare the variables.
	-- SET NOCOUNT ON added to prevent extra result sets from
	-- interfering with SELECT statements.
	SET NOCOUNT ON;
	BEGIN
		
	SELECT 
	  [Student_ID],
	  [LastName],
      [MiddleName],
      [FirstName],
      [Birthdate],
      [Sex],
      [Home_Phone],
      [Cell_Phone],
      [Parent],
      [STU_Address],
      [City],
      [Country_State],
      [Zip_Code],
      [School_Year],
      [School_Name],
      [Organization],
      [Transportation_Type]
	   FROM [LABBB].[dbo].[MasterStudent]
		WHERE	LastName LIKE CASE WHEN @LastName IS NULL THEN '%' ELSE '%' + @LastName + '%' END
				AND FirstName LIKE CASE WHEN @FirstName IS NULL THEN '%' ELSE '%' + @FirstName + '%' END
				AND School_Name LIKE CASE WHEN @School_Name IS NULL THEN '%' ELSE '%' + @School_Name + '%' END
				AND Organization LIKE CASE WHEN @Organization IS NULL THEN '%' ELSE '%' + @Organization + '%' END
				AND Home_Phone LIKE CASE WHEN @Home_Phone IS NULL THEN '%' ELSE '%' + @Home_Phone + '%' END
				AND Transportation_Type LIKE CASE WHEN @Transportation_Type IS NULL THEN '%' ELSE '%' + @Transportation_Type + '%' END
	END
[+][-]10/29/09 12:01 PM, ID: 25697009Accepted Solution

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About this solution

Zones: MS SQL DTS, SQL Query Syntax, SQL Server 2005
Tags: SQL
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Solution Provided By: MuhammadKashif
Participating Experts: 1
Solution Grade: B
 
[+][-]10/29/09 12:42 PM, ID: 25697458Author Comment

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[+][-]10/29/09 01:14 PM, ID: 25697777Expert Comment

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