SQL

wildcard in sql

SELECT * FROM table_name WHERE UPPER(col_name) LIKE '%SEARCHED%';
SELECT * FROM table_name WHERE col_name LIKE '%Searched%';  -- Case sensitive

SYMBOL	DESCRIPTION	(SQL)                       EXAMPLE
%	    zero or more characters	                bl%      'bl, black, blue, blob'
_	    a single character	                    h_t      'hot, hat, hit'
[]	    any single character within brackets	h[oa]t   'hot, hat', but NOT 'hit'
^	    any character not in the brackets	    h[^oa]t  'hit', but NOT 'hot, hat'
-	    a range of characters	                c[a-b]t   'cat, cbt'

sql wildcard characters

% -- Equates to zero or more characters.
-- Example: Find all customers with surnames ending in ‘ory’.
SELECT * FROM customers
WHERE surname LIKE '%ory';

_ -- Equates to any single character.
-- Example: Find all customers living in cities beginning with any 3 characters, followed by ‘vale’.
SELECT * FROM customers
WHERE city LIKE '_ _ _vale';

[charlist] -- Equates to any single character in the list.
-- Example: Find all customers with first names beginning with J, K or T.
SELECT * FROM customers
WHERE first_name LIKE '[jkt]%';

_ Wildcard in SQL

SELECT *
FROM Customers
WHERE country LIKE 'U_';

[] Wildcard in SQL

SELECT *
FROM Customers
WHERE country LIKE 'U[KA]%';

! Wildcard in SQL

SELECT *
FROM Customers
WHERE last_name LIKE '[!DR]%';

SQL Wildcards

SELECT *
FROM Customers
WHERE last_name LIKE 'R%';