﻿ SQL: List the employees whose names containing the letter A

# SQL Exercise: List the employees whose names containing the letter A

## SQL employee Database: Exercise-112 with Solution

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112. From the following table, write a SQL query to find those employees whose names contain the letter 'A’. Return complete information about the employees.

Sample table: employees

Sample Solution:

``````SELECT *
FROM employees
WHERE emp_name LIKE '%A%';
``````

Sample Output:

``` emp_id | emp_name | job_name  | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+-----------+------------+------------+---------+------------+--------
68319 | KAYLING  | PRESIDENT |            | 1991-11-18 | 6000.00 |            |   1001
66928 | BLAZE    | MANAGER   |      68319 | 1991-05-01 | 2750.00 |            |   3001
67832 | CLARE    | MANAGER   |      68319 | 1991-06-09 | 2550.00 |            |   1001
65646 | JONAS    | MANAGER   |      68319 | 1991-04-02 | 2957.00 |            |   2001
67858 | SCARLET  | ANALYST   |      65646 | 1997-04-19 | 3100.00 |            |   2001
69062 | FRANK    | ANALYST   |      65646 | 1991-12-03 | 3100.00 |            |   2001
63679 | SANDRINE | CLERK     |      69062 | 1990-12-18 |  900.00 |            |   2001
64989 | ADELYN   | SALESMAN  |      66928 | 1991-02-20 | 1700.00 |     400.00 |   3001
65271 | WADE     | SALESMAN  |      66928 | 1991-02-22 | 1350.00 |     600.00 |   3001
66564 | MADDEN   | SALESMAN  |      66928 | 1991-09-28 | 1350.00 |    1500.00 |   3001
68736 | ADNRES   | CLERK     |      67858 | 1997-05-23 | 1200.00 |            |   2001
69324 | MARKER   | CLERK     |      67832 | 1992-01-23 | 1400.00 |            |   1001
(12 rows)
```

Explanation:

The said query in SQL returns all rows where the "emp_name" column contains the letter "A" in any position within the string from the ‘employees’ table. The "%" symbol is a wildcard that matches any sequence of characters.

Relational Algebra Expression:

Relational Algebra Tree:

## Practice Online

Sample Database: employee

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