From e340c55758993d3cc23538973fee5d9d22321b54 Mon Sep 17 00:00:00 2001 From: Daniel Schubert Date: Wed, 27 Feb 2019 11:36:00 +0100 Subject: [PATCH] 15 --- 15.html | 112 ++++++++++++++++++++++++++++++++++++++++++++++++++------ 1 file changed, 100 insertions(+), 12 deletions(-) diff --git a/15.html b/15.html index dc164d8..5cfe8db 100644 --- a/15.html +++ b/15.html @@ -51,18 +51,7 @@

lampp stack

-
- -
- + 
~$ sudo apt install apache2 mysql-server phpmyadmin
@@ -80,6 +69,105 @@ MariaDB [(none)]> \q
+
+

mysql

+
+ +
+ Verbindung aufnehmen: + 
~$ sudo mysql
+# oder:
+~$ mysql -u BENUTZERNAME -p -h localhost
+
+
+ +
Datenbank erstellen + 
CREATE DATABASE IF NOT EXISTS test;
+
+USE test;
+
+CREATE TABLE IF NOT EXISTS books (
+  BookID INT NOT NULL PRIMARY KEY AUTO_INCREMENT, 
+  Title VARCHAR(100) NOT NULL, 
+  SeriesID INT, AuthorID INT);
+
+CREATE TABLE IF NOT EXISTS authors 
+(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT);
+
+CREATE TABLE IF NOT EXISTS series 
+(id INT NOT NULL PRIMARY KEY AUTO_INCREMENT);
+
+INSERT INTO books (Title,SeriesID,AuthorID) 
+VALUES('The Fellowship of the Ring',1,1), 
+      ('The Two Towers',1,1), ('The Return of the King',1,1),  
+      ('The Sum of All Men',2,2), ('Brotherhood of the Wolf',2,2), 
+      ('Wizardborn',2,2), ('The Hobbbit',0,1);
+
+ +
Tabellen anzeigen + 

+SHOW TABLES;
+
++----------------+
+| Tables_in_test |
++----------------+
+| authors        |
+| books          |
+| series         |
++----------------+
+3 rows in set (0.00 sec)
+
+
+ + +
+ 
DESCRIBE books;
+
++----------+--------------+------+-----+---------+----------------+
+| Field    | Type         | Null | Key | Default | Extra          |
++----------+--------------+------+-----+---------+----------------+
+| BookID   | int(11)      | NO   | PRI | NULL    | auto_increment |
+| Title    | varchar(100) | NO   |     | NULL    |                |
+| SeriesID | int(11)      | YES  |     | NULL    |                |
+| AuthorID | int(11)      | YES  |     | NULL    |                |
++----------+--------------+------+-----+---------+----------------+
+
+
+ +
+ Daten anzeigen: + 
SELECT * FROM books;
+
++--------+----------------------------+----------+----------+
+| BookID | Title                      | SeriesID | AuthorID |
++--------+----------------------------+----------+----------+
+|      1 | The Fellowship of the Ring |        1 |        1 |
+|      2 | The Two Towers             |        1 |        1 |
+|      3 | The Return of the King     |        1 |        1 |
+|      4 | The Sum of All Men         |        2 |        2 |
+|      5 | Brotherhood of the Wolf    |        2 |        2 |
+|      6 | Wizardborn                 |        2 |        2 |
+|      7 | The Hobbbit                |        0 |        1 |
++--------+----------------------------+----------+----------+
+7 rows in set (0.00 sec)
+ +
Daten einfügen: + 
INSERT INTO books (Title, SeriesID, AuthorID)
+VALUES ("Lair of Bones", 2, 2);
+
+Query OK, 1 row affected (0.00 sec)
+ 
SELECT * FROM books;
+ +
+ Daten modifizieren: + 
UPDATE books 
+SET Title = "The Hobbit" 
+WHERE BookID = 7;
+
+Query OK, 1 row affected (0.00 sec)
+Rows matched: 1  Changed: 1  Warnings: 0
+
+