I am having trouble with Sql Join

Question

3.67/5 (2 votes)

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SQL

SELECT Student.StudentID,(Student.FirstName+' '+Student.LastName)
AS StudentName,Employee.EmployeeID,(Employee.FirstName+' '+Employee.LastName)
FROM Student INNER JOIN Employee ON Student.BranchID=Employee.BranchID
WHERE Student.BranchID OR Employee.BranchID="+ ViewState["BranchID"] + ";

I am having trouble with this Join .It is Showing the following error..

An expression of non-boolean type specified in a context where a condition is expected, near 'OR'.

Posted 13-Mar-14 2:08am

uditCsharp

Updated 13-Mar-14 4:41am

Krunal Rohit

v2

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4 solutions

Solution 1

use any one either Student.BranchID/Employee.BranchID, but not both

Posted 13-Mar-14 2:11am

vsrikanth87

Comments

uditCsharp 13-Mar-14 8:27am

I have two tables Student and Employee... It is possible that student table does not have data
but Employee table might have .Same is happening here Employee Table contains the data related to BranchID but Student table doesn't therefore it it not returning any row.

vsrikanth87 13-Mar-14 8:48am

then whats the need of join over there when there is no data in anyone of tables having unique coloums

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Ashok G Patel · Accepted Answer · 2014-03-13T02:13:00

Solution 2

in your where condition you have not specified valut to compare with Student.BranchID

WHERE Student.BranchID OR Employee.BranchID="+ ViewState["BranchID"] + ";

It should be like

WHERE Student.BranchID='someValue' OR Employee.BranchID="+ ViewState["BranchID"] + ";

Posted 13-Mar-14 2:13am

Ashok G Patel

Comments

uditCsharp 13-Mar-14 8:27am

I have two tables Student and Employee... It is possible that student table does not have data
but Employee table might have .Same is happening here Employee Table contains the data related to BranchID but Student table doesn't therefore it it not returning any row.

Krunal Rohit · Accepted Answer · 2014-03-13T04:44:00

It's a silly mistake. Error itself says something :

Quote:
An expression of non-boolean type specified in a context where a condition is expected, near 'OR'.

So try with this,

SELECT Student.StudentID,(Student.FirstName+' '+Student.LastName)
AS StudentName,Employee.EmployeeID,(Employee.FirstName+' '+Employee.LastName)
FROM Student INNER JOIN Employee ON Student.BranchID=Employee.BranchID
WHERE Student.BranchID="+ ViewState["BranchID"]"+ OR Employee.BranchID="+ ViewState["BranchID"]";

-KR

King Fisher · Accepted Answer · 2014-03-13T03:09:00

try this:

SQL

SELECT Student.StudentID,(Student.FirstName+' '+Student.LastName)
AS StudentName,Employee.EmployeeID,(Employee.FirstName+' '+Employee.LastName)
FROM Student INNER JOIN Employee ON Student.BranchID=Employee.BranchID
WHERE Student.BranchID OR Employee.BranchID="+ ViewState["BranchID"] + ";

SQL

SELECT Student.StudentID,(Student.FirstName+' '+Student.LastName)
AS StudentName,Employee.EmployeeID,(Employee.FirstName+' '+Employee.LastName)
FROM Student INNER JOIN Employee ON Student.BranchID=Employee.BranchID
WHERE Student.BranchID="+ ViewState["BranchID"] + " OR Employee.BranchID="+ ViewState["BranchID"] + ";

I am having trouble with Sql Join

4 solutions

Solution 1

Solution 2

Solution 4

Solution 3

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