/media/sda-magnetic/david/Dok-15-2023-11-27/informatik/www-intel-compute-stick-2022-06-13/063/output01.txt

david@intel-compute-stick:~$ mysql -u root -p               
Enter password: 
Welcome to the MariaDB monitor.  Commands end with ; or \g.
Your MariaDB connection id is 787
Server version: 10.5.12-MariaDB-0+deb11u1 Debian 11

Copyright (c) 2000, 2018, Oracle, MariaDB Corporation Ab and others.

Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.

MariaDB [(none)]> CREATE DATABASE test063;
Query OK, 1 row affected (0.001 sec)

MariaDB [(none)]> USE test063;
Database changed
MariaDB [test063]> CREATE TABLE a (name1 VARCHAR (4), name2 VARCHAR (4));
Query OK, 0 rows affected (0.059 sec)

MariaDB [test063]> CREATE TABLE b (name3 VARCHAR (4), name4 VARCHAR (4));
Query OK, 0 rows affected (0.049 sec)

MariaDB [test063]> INSERT INTO a (name1, name2) VALUES ("001", "001");
Query OK, 1 row affected (0.028 sec)

MariaDB [test063]> INSERT INTO a (name1, name2) VALUES ("001", "002");
Query OK, 1 row affected (0.027 sec)

MariaDB [test063]> INSERT INTO a (name1, name2) VALUES ("002", "001");
Query OK, 1 row affected (0.031 sec)

MariaDB [test063]> INSERT INTO a (name1, name2) VALUES ("002", "002");
Query OK, 1 row affected (0.027 sec)

MariaDB [test063]> INSERT INTO b (name3, name4) VALUES ("001", "001");
Query OK, 1 row affected (0.030 sec)

MariaDB [test063]> INSERT INTO b (name3, name4) VALUES ("001", "002");
Query OK, 1 row affected (0.035 sec)

MariaDB [test063]> SELECT * FROM a;
+-------+-------+
| name1 | name2 |
+-------+-------+
| 001   | 001   |
| 001   | 002   |
| 002   | 001   |
| 002   | 002   |
+-------+-------+
4 rows in set (0.001 sec)

MariaDB [test063]> SELECT * FROM b;
+-------+-------+
| name3 | name4 |
+-------+-------+
| 001   | 001   |
| 001   | 002   |
+-------+-------+
2 rows in set (0.001 sec)

MariaDB [test063]> SELECT * FROM a JOIN b;
+-------+-------+-------+-------+
| name1 | name2 | name3 | name4 |
+-------+-------+-------+-------+
| 001   | 001   | 001   | 001   |
| 001   | 001   | 001   | 002   |
| 001   | 002   | 001   | 001   |
| 001   | 002   | 001   | 002   |
| 002   | 001   | 001   | 001   |
| 002   | 001   | 001   | 002   |
| 002   | 002   | 001   | 001   |
| 002   | 002   | 001   | 002   |
+-------+-------+-------+-------+
8 rows in set (0.001 sec)

MariaDB [test063]> SELECT * FROM a INNER JOIN b ON a.name1 = b.name3;
+-------+-------+-------+-------+
| name1 | name2 | name3 | name4 |
+-------+-------+-------+-------+
| 001   | 001   | 001   | 001   |
| 001   | 001   | 001   | 002   |
| 001   | 002   | 001   | 001   |
| 001   | 002   | 001   | 002   |
+-------+-------+-------+-------+
4 rows in set (0.002 sec)

MariaDB [test063]> SELECT * FROM a RIGHT JOIN b ON a.name1 = b.name3;
+-------+-------+-------+-------+
| name1 | name2 | name3 | name4 |
+-------+-------+-------+-------+
| 001   | 001   | 001   | 001   |
| 001   | 001   | 001   | 002   |
| 001   | 002   | 001   | 001   |
| 001   | 002   | 001   | 002   |
+-------+-------+-------+-------+
4 rows in set (0.002 sec)

MariaDB [test063]> SELECT * FROM a LEFT JOIN b ON a.name1 = b.name3;
+-------+-------+-------+-------+
| name1 | name2 | name3 | name4 |
+-------+-------+-------+-------+
| 001   | 001   | 001   | 001   |
| 001   | 002   | 001   | 001   |
| 001   | 001   | 001   | 002   |
| 001   | 002   | 001   | 002   |
| 002   | 001   | NULL  | NULL  |
| 002   | 002   | NULL  | NULL  |
+-------+-------+-------+-------+
6 rows in set (0.002 sec)

MariaDB [test063]> QUIT
Bye
david@intel-compute-stick:~$