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Perl Some basic MySQL orders
Some basic MySQL orders

1. Connection to MySQL

Enter password: ******* Welcome to the MySQL monitor. Commands end with ; or \g. Your MySQL connection id is 5 to server version: 5.0.4-beta-nt Type 'help;' or '\h' for help. Type '\c' to clear the buffer. mysql> connect Connection id: 6 Current database: *** NONE ***

2. mysql> show databases;

+-----------------------+ | Database | +-----------------------+ | information_schema | | academia | | aromatics | | atoms | | books | | boxes | | cake | | compounds | | joomlas | | molecules | | molecules_development | | molecules_production | | molecules_test | | moodle | | mysql | | organics_development | | organics_production | | organics_test | | sulfur_compounds | | test | +-----------------------+ 20 rows in set (0.45 sec)

3. mysql> connect academia;

Connection id: 15 Current database: academia

4. mysql> show tables;

+--------------------+ | Tables_in_academia | +--------------------+ | disciplines | | friends | | molecules | | physicists | | professors | | programs | +--------------------+ 6 rows in set (0.00 sec)

5. mysql> select * from physicists;

+---------+------------+-------------+------------+------------+-------------------+ | phys_id | first_name | last_name | birth_date | death_date | discipline | +---------+------------+-------------+------------+------------+-------------------+ | 101 | Joseph | Thomson | 1856 | 1940 | atomic | | 102 | Ernest | Rutherford | 1871 | 1937 | nuclear | | 103 | Max | Planck | 1858 | 1947 | radiation | | 105 | Niels | Bohr | 1885 | 1962 | atomic | | 106 | Louis | DeBroglie | 1892 | 1987 | wave_mechanics | | 107 | Erwin | Schrodinger | 1887 | 1961 | quantum_mechanics | | 108 | Maurice | Dirac | 1902 | 1984 | atomic | | 109 | Ludwig | Boltzmann | 1844 | 1906 | stat_physics | +---------+------------+-------------+------------+------------+-------------------+ 8 rows in set (0.00 sec) mysql>

6. Adding "Faraday" with Perl gives: ;

mysql> select * from physicists; +---------+------------+-------------+------------+------------+-------------------+ | phys_id | first_name | last_name | birth_date | death_date | discipline | +---------+------------+-------------+------------+------------+-------------------+ | 101 | Joseph | Thomson | 1856 | 1940 | atomic | | 102 | Ernest | Rutherford | 1871 | 1937 | nuclear | | 103 | Max | Planck | 1858 | 1947 | radiation | | 105 | Niels | Bohr | 1885 | 1962 | atomic | | 106 | Louis | DeBroglie | 1892 | 1987 | wave_mechanics | | 107 | Erwin | Schrodinger | 1887 | 1961 | quantum_mechanics | | 108 | Maurice | Dirac | 1902 | 1984 | atomic | | 109 | Ludwig | Boltzmann | 1844 | 1906 | stat_physics | | 112 | Michael | Faraday | 1791 | 1867 | Elecromagetism | +---------+------------+-------------+------------+------------+-------------------+ 9 rows in set (0.02 sec) mysql>
  
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