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Normally, when querying a database with SELECT, its common to want to find the records that match a given search string.
For example:
SELECT * FROM customers WHERE name LIKE '%Bob Smith%'; That query should give me all records where 'Bob Smith' appears anywhere in the name field.
What I'd like to do is the opposite.
Instead of finding all the records that have 'Bob Smith' in the name field, I want to find all the records where the name field is in 'Robert Bob Smith III, PhD.', a string argument to the query.
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STRCMP() function in MySQL is used to compare two strings. If both of the strings are same then it returns 0, if the first argument is smaller than the second according to the defined order it returns -1 and it returns 1 when the second one is smaller the first one.
SQL Pattern Matching : It is used for searching a string or a sub-string to find certain character or group of characters from a string. We can use LIKE Operator of SQL to search sub-string. The LIKE operator is used with the WHERE Clause to search a pattern in string of column.
Example - Equality Operator In MySQL, you can use the = operator to test for equality in a query. The = operator can only test equality with values that are not NULL. For example: SELECT * FROM contacts WHERE last_name = 'Johnson';
The LOCATE() function returns the position of the first occurrence of a substring in a string. If the substring is not found within the original string, this function returns 0. This function performs a case-insensitive search. Note: This function is equal to the POSITION() function.
Just turn the LIKE around
SELECT * FROM customers WHERE 'Robert Bob Smith III, PhD.' LIKE CONCAT('%',name,'%') If you love us? You can donate to us via Paypal or buy me a coffee so we can maintain and grow! Thank you!
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