Problem
Table: Patients
+--------------+---------+
| Column Name | Type |
+--------------+---------+
| patient_id | int |
| patient_name | varchar |
| conditions | varchar |
+--------------+---------+
patient_id is the primary key for this table.
'conditions' contains 0 or more code separated by spaces.
This table contains information of the patients in the hospital.
Write an SQL query to report the patientid, patientname all conditions of patients who have Type I Diabetes. Type I Diabetes always starts with DIAB1 prefix
Return the result table in any order.
The query result format is in the following example.
Example 1:
Input:
Patients table:
+------------+--------------+--------------+
| patient_id | patient_name | conditions |
+------------+--------------+--------------+
| 1 | Daniel | YFEV COUGH |
| 2 | Alice | |
| 3 | Bob | DIAB100 MYOP |
| 4 | George | ACNE DIAB100 |
| 5 | Alain | DIAB201 |
+------------+--------------+--------------+
Output:
+------------+--------------+--------------+
| patient_id | patient_name | conditions |
+------------+--------------+--------------+
| 3 | Bob | DIAB100 MYOP |
| 4 | George | ACNE DIAB100 |
+------------+--------------+--------------+
Explanation: Bob and George both have a condition that starts with DIAB1.
Solution
# Write your MySQL query statement below
SELECT *
FROM Patients
WHERE Conditions LIKE 'DIAB1%' OR
Conditions LIKE '% DIAB1%'
Explain:
nope.
Complexity:
- Time complexity : O(n).
- Space complexity : O(n).