Question

I have a sequence table with two columns, name, value, and I have a stored procedure for incrementing the value provided the name

DROP PROCEDURE IF EXISTS p_generate_sequence; delimiter | CREATE PROCEDURE p_generate_sequence (name VARCHAR(30)) BEGIN     START TRANSACTION;     -- Variable 'name' equal to column 'name', how to reference?     UPDATE sequences_table SET value = value + 1 WHERE name = name;     SELECT value FROM sequences_table WHERE name = name;     COMMIT; END | delimiter ; 

Note the parameter is called ‘name’.

Is there any approach for using a parameter with the same name as the column name of the affected table?

NOTE: I’m not interested in change parameter’s name, nor even column’s name, just to know whether is it possible or not, and how.

Answer 1

Yes, scope your table column by an alias.

e.g.

delimiter // create procedure foo( id int ) begin  select * from users u where u.id = id; end //  call foo( 123 ) 

returns user id = 123