Answers for "condition a wildcard sql"

sql where value like a or b

-- example
SELECT Id, ProductName, UnitPrice, Package
  FROM Product
 WHERE ProductName LIKE 'Cha_' OR ProductName LIKE 'Chan_'

like sql

syntax => SELECT column_name(s)
FROM table_name
WHERE column_name LIKE pattern 
////example/////
///The "%" sign can be used to define wildcards (missing letters in the pattern) both before and after
the pattern.
SELECT * FROM Persons
WHERE City LIKE 's%'