MySQL Fuzzy Search: Using LIKE Patterns

In MySQL, the LIKE operator can be used to perform a fuzzy search. The LIKE operator is used to search for a specific pattern in a column within the WHERE clause. The pattern can include wildcards, such as % and _.

For example, to search for lines containing a specific string, you can use the following syntax:

SELECT * FROM table_name WHERE column_name LIKE '%keyword%';

In the statement above, table_name is the name of the table to be queried, column_name is the name of the column to be queried, and keyword is the keyword to search for. The % wildcard represents zero or more characters, so the above query will return all rows containing the keyword string.

Additionally, if you want to search for lines that start or end with a specific string, you can use the following syntax:

SELECT * FROM table_name WHERE column_name LIKE 'keyword%'; -- 匹配以'keyword'开头的行
SELECT * FROM table_name WHERE column_name LIKE '%keyword'; -- 匹配以'keyword'结尾的行

The underscore wildcard represents a single character and can be used to match a single character, in addition to the percentage wildcard.

In general, combining the LIKE operator with wildcards allows for flexible fuzzy searching capabilities.