Database query is divided into: complete query and fuzzy query.
The so-called fuzzy query is: the way to find relevant data by using some parameters
The statement of fuzzy query:
SELECT field FROM table WHERE a field Like condition
Like is the keyword of fuzzy query
% is a wildcard, any match. For example: Wang% The second half is any character, similarly you can put % anywhere in the condition field
_ represents any single character. It is often used to limit the character length of expressions. For example, Wang_ appears as Wang Wu Wang Liu