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The algorithm for wildcard searching in SQL involves using special characters like "%" and "_" to match one or more characters in a search pattern. Here is a general outline of how the algorithm works:
For example, if you want to search for all names that start with "J" and end with "n" but have any number of characters in between, you can use the following query:
SELECT * FROM customers WHERE name LIKE 'J%n';
This will return all records in the "customers" table where the "name" column starts with "J" and ends with "n" with any number of characters in between.