getting null in joining

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i have to join first name & last name in my sql
this is my sql :
select concat(FirstName,' ',LastName) as fullname from tablename;
but if last name is blank,then i am getting null as fullname..
but in that case i want first name ,,,how to do this??

Posted 31-Jan-14 21:20pm

Member 10276220

Updated 31-Jan-14 21:22pm

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Abhinav S · Answer 1 · 2014-01-31T21:35:00

Solution 1

Try select concat(ISNULL(FirstName,''),' ',ISNULL(LastName,'')).
ISNULL[^] will check for null and return a value accordingly.

Posted 31-Jan-14 21:35pm

Abhinav S

Comments

Member 10276220 1-Feb-14 3:51am

its not working...getting the error...
"Error Code: 1064. You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'IS NULL(FirstName,''),' ',IS NULL(LastName,'')) as fullname from keyinformation ' at line 1"

Abhinav S 1-Feb-14 3:55am

Oops. Its mySQl.
mySQL is slightly different.

Try IFNULL() instead of ISNULL().

Please mark as answered if it works.

Member 10276220 1-Feb-14 4:48am

thanx

Abhinav S 1-Feb-14 7:45am

Please mark this answer as the right answer if it works. Thanks.

V5709 · Answer 2 · 2014-01-31T21:58:00

Solution 2

Try this.

SQL

select (Isnull(@fname,' ')+''+Isnull(@lastname,' ') ) as fullname ;

Posted 31-Jan-14 21:58pm

V5709

agent_kruger · Answer 3 · 2014-01-31T23:31:00

Solution 3

try This

select Trim(FirstName + ' ' + LastName) as fullname from tablename;

Or

select Trim(FirstName & ' ' & LastName) as fullname from tablename;

I am not sure about the '+' and '&', so try both and this will fulfill your need.

Posted 31-Jan-14 23:31pm

agent_kruger