PRAGMA case_sensitive_like = boolean;

The default behavior of the LIKE operator is to ignore case for ASCII characters. Hence, by default 'a' LIKE 'A' is true. The case_sensitive_like pragma installs a new application-defined LIKE function that can change this behavior. When case_sensitive_like is enabled, 'a' LIKE 'A' is false but 'a' LIKE 'a' is still true.