mysqltimestampprocedurescase-when

How to use a case-when statement in a mysql stored procedure?


I want to set the session_id automatically using the request_time parameter so i opted for a mysql stored procedure that contains a case statement.Here goes.

create procedure upd_userinput(in  request_time timestamp, out user_session_id int) 

begin 

update user_input;

case request_time

when time(request_time) < '9:15:00' && time(request_time) > '8:15:00' 
then set user_session_id = 1; 

when  time(request_time)< '10:15:00' && time(request_time) > '11:15:00' 
then set user_session_id =2; 

end case; 
end
//

However i get a 1064 error on enter after //. I have checked the mysql documentation i think the case syntax is correct.

Help please.


Solution

  • delimiter //
    
    create procedure upd_userinput(in request_time TIMESTAMP,out time TIME, out user_session_id INT)     
    
    begin      
    
    set time = time(request_time);    
    
    case  
    when time < '09:15:00' && time > '08:15:00' then      
    set user_session_id = 1; 
    
    when time < '10:15:00' && time > '11:15:00' then
    set user_session_id = 2;  
    
    else set user_session_id =3;
    
    end case;  
    end //