added tasks 0 to 1

tasks/01-select-intro.sql

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+-- Active: 1697184303960@@127.0.0.1@3306
+
+# Date: 13.10.2023
+# Author: Sven Vogel
+
+# ---------------------------------------------
+# setup database schema
+CREATE SCHEMA IF NOT EXISTS task01;
+USE task01;
+
+# select a single number
+SELECT 5 AS number;
+# interpret value as hex
+SELECT hex(255) AS hexnum;
+
+# intger encode of ascii '5'
+SELECT ASCII('5');
+SELECT BIN(65);
+# binary value of 'A'
+SELECT BIN(ASCII('A'));
+# binary encode of 'Mucke'
+SELECT CONCAT_WS(
+    ' ',
+    BIN(ASCII('M')),
+    BIN(ASCII('u')),
+    BIN(ASCII('c')),
+    BIN(ASCII('k')),
+    BIN(ASCII('e'))
+);

tasks/02-create-table.sql

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+-- Active: 1697184303960@@127.0.0.1@3306
+CREATE SCHEMA IF NOT EXISTS task02;
+USE task02;
+
+DROP TABLE IF EXISTS fruits;
+
+CREATE TABLE fruits (
+    id INT PRIMARY KEY AUTO_INCREMENT,
+    name VARCHAR(45) NOT NULL,
+    color VARCHAR(10)
+);
+
+INSERT INTO fruits (name, color) VALUES ('Banane', 'gelb');
+INSERT INTO fruits (name, color) VALUES ('Kiwi', 'grün');
+INSERT INTO fruits (name, color) VALUES ('Apfel', 'grün');
+INSERT INTO fruits (name, color) VALUES ('Apfel', 'rot');
+INSERT INTO fruits (name, color) VALUES ('Erdbeere', 'rot');
+INSERT INTO fruits (name, color) VALUES ('Himbeere', 'rot');
+INSERT INTO fruits (name, color) VALUES ('Birne', 'grun');
+
+SELECT * FROM fruits;
+SELECT name FROM fruits WHERE color = 'rot';
+SELECT name FROM fruits;
+SELECT DISTINCT name FROM fruits;