problem with fetching data

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I want fetch student data but one record fetching 3 times what was the problem?plz help me?
code:

C#

string stqr = "select c.Cand_Id,c.Candidature_Course,c.Candidature_Photo,c.Candidature_Stud_Nm,c.Candidature_Stud_Lnm,c.Candidature_Stud_Email,c.Candidature_Stud_Contact,c.Candidte_Int_job,c.Candidature_Stud_Resume from Candidature_Inst_Details c,Institute_Details i where c.User_Name = i.User_Name and c.Candidature_Course = '" + DropDownList1.SelectedValue + "' and c.Institute_branch = '" + DropDownList3.SelectedValue + "'and c.Candidte_Int_job='Job' and c.Cand_Id NOT IN(select Cand_Id from cand_post_details where Posting_Id='" + p1 + "')";

Posted 21-Aug-12 20:40pm

Member 9027346

Updated 21-Aug-12 21:17pm

Mehdi Gholam

v3

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Comments

janwel 22-Aug-12 2:41am

where is your trial code? How can we help you if you dont post your code?

prashant patil 4987 22-Aug-12 2:44am

please post your code also..and query also.may be problem becoz of distinct not using..

[no name] 22-Aug-12 2:46am

please post ur code

4 solutions

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AshishChaudha · Answer 1 · 2012-08-21T22:47:00

Solution 4

Any one of your table have multiple records for the same course and for job. If all the columns of each row are same then use Distinct keyword.

Please provide the structure of the table with the records so we can help you better.

Thanks
Ashish

Posted 21-Aug-12 22:47pm

AshishChaudha

Santhosh Kumar Jayaraman · Answer 2 · 2012-08-21T21:21:00

Use distinct.

C#

string stqr = "select distinct c.Cand_Id,c.Candidature_Course,c.Candidature_Photo,c.Candidature_Stud_Nm,c.Candidature_Stud_Lnm,c.Candidature_Stud_Email,c.Candidature_Stud_Contact,c.Candidte_Int_job,c.Candidature_Stud_Resume from Candidature_Inst_Details c,Institute_Details i where c.User_Name = i.User_Name and c.Candidature_Course = '" + DropDownList1.SelectedValue + "' and c.Institute_branch = '" + DropDownList3.SelectedValue + "'and c.Candidte_Int_job='Job' and c.Cand_Id NOT IN(select Cand_Id from cand_post_details where Posting_Id='" + p1 + "')";

I dont understand why you have table"Institute_Details" in from clause when you are not using it in select and where clause. if you not using at both places remove it and remove

C#

c.User_Name = i.User_Name

Arul R Ece · Answer 3 · 2012-08-21T21:32:00

Solution 2

Hi friend,

Use "distinct " for filter duplicate value.

Posted 21-Aug-12 21:32pm

Arul R Ece

VVermaamit · Answer 4 · 2012-08-21T21:38:00

Solution 3

Hi ,

yes, use distinct for this.

Posted 21-Aug-12 21:38pm

VVermaamit