﻿ SQL: List the employees working under various managers

# SQL Exercise: List the employees working under various managers

## SQL employee Database: Exercise-46 with Solution

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46. From the following table, write a SQL query to find out which employees are working under the managers 63679, 68319, 66564, or 69000. Return complete information about the employees.

Sample table: employees

Pictorial Presentation:

Sample Solution:

``````SELECT *
FROM employees
WHERE manager_id IN (63679,
68319,
66564,
69000);
``````

Sample Output:

``` emp_id | emp_name | job_name | manager_id | hire_date  | salary  | commission | dep_id
--------+----------+----------+------------+------------+---------+------------+--------
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
(3 rows)
```

Relational Algebra Expression:

Relational Algebra Tree:

## Practice Online

Sample Database: employee

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Previous SQL Exercise: Employees who joined on the given days in the year 1991.
Next SQL Exercise: Employees who joined after the month of JUNE in 1991.

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## SQL: Tips of the Day

Count the number of occurrences of a string in a VARCHAR field?

```SELECT
title,
description,
ROUND (
(
LENGTH(description)
- LENGTH( REPLACE ( description, "value", "") )
) / LENGTH("value")
) AS count
FROM <table>
```

Ref: https://bit.ly/3PvNdT4