In the beginning of the course we’ve briefly talked about the LIKE
operator. It allows us to filter records by matching a simple text pattern. For example, we used it to count all users from a specific Internet domain:
SELECT COUNT(*) FROM users WHERE email LIKE '%@boogle.%'
The %
symbol is the wildcard symbol – it matches any text or no text at all. %
allows us to create smarter filters: we can specify the position of our search term (@boogle.
in the example above ).
Matching the beginning of text
We can filter records that start with a...