To understand it better let us consider the CUSTOMERS table which contains the personal details of customers including their name, age, address and salary etc. The ‘%’ wildcard matches any length of a string which even includes the zero length. The % sign represents zero or multiple characters. Ajayįinds any name that starts with A and does not consists of the specified alphabets. The table given below has a few examples showing the WHERE clause having different LIKE operators with '%', '_', and pattern − S.Noįinds any values that have 200 in any position.įinds any values that have 00 in the second and third positions.įinds any values that start with 2 and are at least 3 characters in length.įinds any values that have a 2 in the second position and end with a 3.įinds any values in a five-digit number that start with 2 and end with 3.įinds any name that starts with A and has the specified alphabets. The two mainly used wildcard characters are ‘%’ and ‘_’. Note − In the LIKE operator, the above wildcard characters can be used individually as well as in combinations with each other. This matches any single character excluding the given range in the. This matches any single character within the given range in the. The underscore represents a single number or character. The percent sign represents zero, one or multiple characters. Following are the four wildcards used in conjunction with the LIKE operator − S.No SQL wildcards are special characters used in SQL queries to match patterns in the data. The basic syntax of the SQL LIKE operator is as follows − However, using the string values is recommended. The LIKE operator can be used with strings, numbers, or date values. And the expression “K%” specifies that it will display the list of all the students whose name starts with ‘k’. Here, the “%” is a wild card which represents zero, one or multiple characters. We can obtain this with the help of the LIKE operator as follows − Suppose we need to submit the list of all the students whose name starts with ‘K’. These patterns are specified using ‘Wildcards’. It is used along with the WHERE clause of the UPDATE, DELETE and SELECT statements, to filter the rows based on the given pattern. The SQL LIKE is a logical operator that is used to retrieve the data in a column of a table, based on a specified pattern.
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