How To Write Like Comparison In Procedures?
this sample procedure takes in an username, searches for number of entries matching the pattern of the username.
delimiter $$
create procedure sampleDB.sampleProcedure( IN m_username varchar(30), OUT m_username_matched_count int )
deterministic
begin
if length(m_username) = 0 then
set m_username = 'jason' #set temporary name if empty
end if
set m_username_matched = 0; #finds number of matches for the given username
select
count(*) into m_username_matched #store into the variable to be returned
from
sampleDB.sampleTable
where
userName like '%m_username%' #this is the statement that does not work#
end$$
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