SQL LIKE + 通配符只返回第一个值的结果

Question

What's happening StackOverflow.

I'm using DB Browser for SQLLite to query a database with two tables - people and states . people has the field state_code and states has the fields state_abbrev and state_name . people.state_code and states.state_abbrev both have postal codes for USA states (eg AK, AZ, MI, MN, etc.).

I'm trying to search for all records where the state names match a certain text string criteria, using LIKE and wildcards. Here's my code:

SELECT *
FROM people
WHERE state_code = (
    SELECT state_abbrev FROM states WHERE state_name LIKE 'mi%');

I want the above code to return all records where the state name begins with "mi" - ie Michigan, Minnesota, and Missouri. However, this is only returning records with the first alphabetical state name - Michigan . Same happens with LIKE '%ans%' - this only returns records from Ark ans as, despite the existence of records from K ans as.

What am I doing wrong yall? I've tried using GROUP BY state_name, state_abbrev within the nested SELECT to no avail, and I can't seem to find anyone else encountering the same issue.

Answer 1

You can try using WHERE state_code IN (... this will search for all the records in your inner sql query