Like Operator in MySQL




Hello and welcome everyone. In this article, we will learn about the Like Operator in MySQL. Let’s go.

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MySQL LIKE operator is used with WHERE clause of SELECT, DELETE, UPDATE statement to search for a specified pattern in a column. LIKE operator allows us to perform pattern matching and were want to do an exact match. Following are the two wildcard characters provided in MySQL that creating patterns,
Underscore ( _ ) – this wild card matches a single character from the table. For example, suppose we gave pattern like te_, now any string starts with te from the table then the character will display like tea or tennis or teen.
Percentage ( % ) – this wild card matches a string of zero or more characters. For example suppose we given pattern such as T%, now any string starts with T from the table then the character will display like Table or Tea or Tiger.

Syntax:
          SELECT column_name_1, column_name_2, . . .
          FROM table_name
          WHERE condition
          expr LIKE pattern [ ESCAPE   ‘escape_char’ ]
Here is
expr is a column character expression
the pattern is matching character expression.

For example
Here is the, we will create a table for an employee in the database.

CREATE TABLE IF NOT EXISTS employee (
                   e_id int (10) PRIMARY KEY,
                   e_firstname varchar (50) NOT NULL,
                   e_lastname varchar (50) NOT NULL,
                   e_age int (10),
                   e_city varchar (250)
e_sex char (1)
e_phnumber int (15) NOT NULL
)

Here we insert record in the employee table.
INSERT INTO employee (
  ‘e_id’, ’e_firstname’, ’e_lastname’,
  ’e_age’, ’e_city’, ’e_sex’,
  ’e_phnumber’
)
VALUES
  (
    1, ‘Hone’, ‘Reus’, 26, ‘San Jose’, ‘M’, ‘ + 1 555 555 1111’
  ),
  (
    2, ‘Cries’, ’Fence’, 23, ’Fresno’, ’F’, ’ +1 555 555 1111’
  );

Final Result
‘e_id’ ’e_firstname’ ’e_lastname’ ’e_age’ ’e_city’  ’e_sex’ ’e_phnumber’
  1         Hone              Reus              26      San Jose    M       +1 555 555 1111
  2         Cries              Fence             23      Fresno       F        +1 555 555 1111

Example 1:
Now I want to display employee first name starting with “C”:
          SELECT * FROM employee
          WHERE e_firstname LIKE ‘C%’;
Example 2:
Now I want to display employee first name character ends with “e” or that name not start with “e”:
          SELECT * FROM employee
          WHERE e_firstname LIKE ‘%e’;
Example 3:
Now I want to display employee last name that has “en” at any position:
          SELECT * FROM employee
          WHERE e_lastname LIKE ‘%en%’;
Example 4:
Now I want to display all employee last names that have e in the second position:
          SELECT * FROM employee
          WHERE e_lastname LIKE ‘_e’;

In this article, we learned about LIKE operator with two wildcards like percentage ( % ) and Underscore ( _ ) with example.


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