How is the “contains” function used in MySQL?

In MySQL, there is no direct way to use the CONTAINS function. However, you can simulate the CONTAINS functionality using the LIKE operator, which is used to search for specified patterns within a string.

Here is an example:

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

In the example above, column_name is the name of the column to be searched, table_name is the name of the table to be searched, and keyword is the keyword to search for. The % symbol is used to match zero or more characters.

This search will return rows containing the specified keyword. If you want to search for case-insensitive results, you can use the LOWER function to convert the column and keyword to lowercase, for example:

SELECT column_name
FROM table_name
WHERE LOWER(column_name) LIKE '%keyword%';

This will convert columns and keywords to lowercase before searching, allowing for case-insensitive matching results.