sqliteHow do I use regular expressions to query a SQLite database?
Regular expressions can be used in SQLite queries to perform powerful pattern matching. The LIKE
operator is used to match a string against a pattern. For example, the following SQLite statement will return all rows where the column name
starts with the letter 'A':
SELECT * FROM table WHERE name LIKE 'A%';
The %
operator is a wildcard that matches any number of characters. Other operators that can be used in regular expressions are _
which matches any single character, [...]
which matches any single character that is enclosed in the brackets, and [^...]
which matches any single character that is not enclosed in the brackets.
The REGEXP
operator can also be used to match a string against a regular expression pattern. For example, the following SQLite statement will return all rows where the column name
contains the letter 'A':
SELECT * FROM table WHERE name REGEXP '.*A.*';
Code explanation
LIKE
operator: Used to match a string against a pattern.%
operator: Wildcard that matches any number of characters._
operator: Matches any single character.[...]
operator: Matches any single character that is enclosed in the brackets.[^...]
operator: Matches any single character that is not enclosed in the brackets.REGEXP
operator: Used to match a string against a regular expression pattern.
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