sql like case sensitive

1SELECT * FROM table_name WHERE UPPER(col_name) LIKE '%SEARCHED%';
2SELECT * FROM table_name WHERE col_name LIKE '%Searched%';  -- Case sensitive
3
4SYMBOL	DESCRIPTION	(SQL)                       EXAMPLE
5%	    zero or more characters	                bl%      'bl, black, blue, blob'
6_	    a single character	                    h_t      'hot, hat, hit'
7[]	    any single character within brackets	h[oa]t   'hot, hat', but NOT 'hit'
8^	    any character not in the brackets	    h[^oa]t  'hit', but NOT 'hot, hat'
9-	    a range of characters	                [a-b]t   'cat, cbt'

1-- Postgresql case insensitive:
2SELECT * FROM people WHERE name ILIKE 'JOHN'
3-- John
4-- JOHN
5-- john

1SELECT 1
2FROM dbo.Customers
3WHERE   CustID = @CustID COLLATE SQL_Latin1_General_CP1_CS_AS
4    AND CustPassword = @CustPassword COLLATE SQL_Latin1_General_CP1_CS_AS
5

1SELECT DISTINCT COL_NAME FROM myTable WHERE UPPER(COL_NAME) LIKE UPPER('%PriceOrder%')
2# or
3SELECT DISTINCT COL_NAME FROM myTable WHERE LOWER(COL_NAME) LIKE LOWER('%PriceOrder%')
4