Added Clocked Hours

Author: thecoddiwompler

Clocked Hours/READme.md

@@ -0,0 +1,70 @@
+# Clocked Hours
+![Star Badge](https://img.shields.io/static/v1?label=%F0%9F%8C%9F&message=If%20Useful&style=style=flat&color=BC4E99)
+[![View Main Folder](https://img.shields.io/badge/View-Main_Folder-971901?)](https://github.com/thecoddiwompler/SQL-Practice-Questions/tree/main)
+[![View Repositories](https://img.shields.io/badge/View-My_Repositories-blue?logo=GitHub)](https://github.com/thecoddiwompler?tab=repositories)
+[![View My Profile](https://img.shields.io/badge/View-My_Profile-green?logo=GitHub)](https://github.com/thecoddiwompler)
+
+---
+
+## 🛠️ Problem Statement
+
+
+<b>Table Name : clocked_hours</b>
+</br>
+|  Column Name  |Type |
+| ------------- | ------------- |
+| empd_id    | int |
+| swipe     | time    |
+| flag | char     |
+
+
+* <b> (empd_id, swipe) is the primary key for this table. </b><br/>
+<br/>
+
+This table provides empd_id (Employee ID), swipe time (swipe), and swipe type (flag). Flag can have only two values- 'I' and 'O' signifying Entry time and exit time.
+<br/>
+</br>
+<b>Write a SQL query to find the total clocked time for each employees.</b>
+</br>
+<br/>
+Return the result table in any order.
+</br>
+</br>
+<b>The query result format is in the following example:  </b>
+</br>
+</br>
+
+ <details>
+<summary>
+Input
+</summary>
+<br>
+<b>Table Name : clocked_hours</b>
+<br><br>
+
+| empd_id | swipe  | flag |
+|---------|--------|------|
+| 11114   | 08:30  | I    |
+| 11114   | 10:30  | O    |
+| 11114   | 11:30  | I    |
+| 11114   | 15:30  | O    |
+| 11115   | 09:30  | I    |
+| 11115   | 17:30  | O    |
+
+
+
+</details>
+
+<details>
+<summary>
+Output
+</summary>
+<br>
+
+| empd_id    | clocked_time |
+| ---- |----|
+| 11114   | 6 Hours 0 Minutes 0.00 Seconds |
+| 11115   | 8 Hours 0 Minutes 0.00 Seconds |
+</details>
+
+---

Clocked Hours/schema.sql

@@ -0,0 +1,13 @@
+CREATE TABLE clocked_hours(empd_id int, swipe time, flag char);
+
+INSERT INTO
+    clocked_hours
+VALUES
+    (11114, '08:30', 'I'),
+    (11114, '10:30', 'O'),
+    (11114, '11:30', 'I'),
+    (11114, '15:30', 'O'),
+    (11115, '09:30', 'I'),
+    (11115, '17:30', 'O');
+
+COMMIT;

Clocked Hours/solution.sql

@@ -0,0 +1,52 @@
+WITH cte AS (
+    SELECT
+        a.empd_id,
+        a.swipe entry,
+        b.swipe exit
+    FROM
+        clocked_hours a
+        INNER JOIN clocked_hours b ON a.empd_id = b.empd_id
+        AND a.swipe <= b.swipe
+        AND a.flag = 'I'
+        AND b.flag = 'O'
+),
+swipe_details AS (
+    SELECT
+        empd_id,
+        entry,
+        min(exit) exit
+    FROM
+        cte
+    GROUP BY
+        empd_id,
+        entry
+)
+SELECT
+    empd_id,
+    CONCAT(
+        extract(
+            HOUR
+            FROM
+                SUM(exit - entry)
+        ),
+        ' Hours ',
+        extract(
+            MINUTE
+            FROM
+                SUM(exit - entry)
+        ),
+        ' Minutes ',
+        ROUND(
+            extract(
+                SECOND
+                FROM
+                    SUM(exit - entry)
+            ),
+            2
+        ),
+        ' Seconds'
+    ) clocked_time
+FROM
+    swipe_details
+GROUP BY
+    empd_id;