如何使用phpmyadmin中的存储过程进行搜索查询？

Question

I created a stored procedure for search query in my database in a specified table(books). I am having a problem whenever i execute the SP, there were no results. How can i solve this? any help please..

here(GUI):

Routine name: Search
type: procedure
parameters: direction(IN), Name(btitle), type(varchar), length(40)
BEGIN
SELECT * FROM books WHERE title LIKE '%btitle%';
END

Answer 1

Variables aren't expanded inside strings, so you're searching for books whose title contains the literal string btitle . You need to use CONCAT to concatenate the variable value:

SELECT * FROM book WHERE title LIKE CONCAT('%', btitle, '%');