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HELP- How do i create a stored procedure that accepts a user Id and returns the user’s full name and occupation and 1 email address.

Posted on 2016-10-22
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Last Modified: 2016-11-11
drop procedure if exists userInformation $$


create procedure userInformation(in uID varchar(50), out fullname varchar(50), out job varchar(50), out email varchar(50))
begin
      select concat(firstname, ' ', lastname) into FULLNAME
      from users
      where userid = uID;
      
      select occupation into JOB
      from occupation
      join users on users.occupationID = occupation.occupationid
      where userid = uID;
      
      select useremail into EMAIL from useremail
      join users on useremail.userid = users.userid
      where userid = uID
      limit 1;
      
END$$

delimiter ;
call userInformation('00002380-3e3b-11e3-bbac-c42c03098f6c', @fullnam, @job, @email);
select @fullname, @job, @email;

I get this error when I try and call/select the procedure: Column 'userid' in where clause is ambiguous
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Question by:Jim Jones
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3 Comments
 
LVL 44

Accepted Solution

by:
AndyAinscow earned 500 total points (awarded by participants)
ID: 41855788
At a guess instead of:
     select occupation into JOB
      from occupation
      join users on users.occupationID = occupation.occupationid
      where userid = uID;

it should be
     select occupation into JOB
      from occupation
      join users on users.occupationID = occupation.occupationid
      where users.userid = uID;

or (less likely based on your names):
     select occupation into JOB
      from occupation
      join users on users.occupationID = occupation.occupationid
      where occupation.userid = uID;


Basically specify which table when the field exists in more than one table
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LVL 42

Expert Comment

by:pcelba
ID: 41856081
Just a note: You are asking in MS SQL zone but your code seems to have MySQL syntax. Even when the answer is correct for both platforms the code cannot work under MS SQL Server.
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LVL 44

Expert Comment

by:AndyAinscow
ID: 41883573
The error message was typical for the field existing in two tables - specifying which table is to be used stops the ambiguity
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