added tasks from 27.10.2023

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

tasks/03-set-and-enums.sql

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+CREATE SCHEMA task03;
+USE task03;
+
+CREATE TABLE Colors (
+    colorName SET ('red', 'green', 'blue')
+);
+
+/* can have multiple values at once and be empty */
+INSERT INTO Colors VALUES  ('red');
+INSERT INTO Colors VALUES  ('green');
+INSERT INTO Colors VALUES  ('blue,green');
+INSERT INTO Colors VALUES ('');
+
+CREATE TABLE Animals (
+    name ENUM ('Dog', 'Cat', 'Bird')
+);
+
+/* cannot be empty or multiple variants at once */
+INSERT INTO Animals VALUES ('Dog');
+INSERT INTO Animals VALUES ('Cat');
+INSERT INTO Animals VALUES ('Bird');

tasks/05-create-table.sql

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+CREATE SCHEMA employees;
+
+DROP TABLE IF EXISTS employees.Employee;
+
+CREATE TABLE employees.Employee (
+    id BINARY(16) PRIMARY KEY, /* automatically NOT NULL */
+    name NVARCHAR(64) NOT NULL, /* this field is mandatory */
+    email VARCHAR(32) /* optional field */
+);
+
+INSERT INTO employees.Employee SET
+    id = UUID_TO_BIN(UUID()),
+    name = 'Hans Jürgen Peter';
+
+INSERT INTO employees.Employee VALUES (
+    id = UUID_TO_BIN(UUID()),
+    name = 'Guten Tag',
+   email = 'klaus@doof.de'
+);
+
+SELECT hex(id), name, email FROM employees.Employee;

tasks/task-6-1-1.sql

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+CREATE SCHEMA cities;
+
+CREATE TABLE cities.Cities (
+    id BINARY(16) NOT NULL,  /* UUID */
+    name NVARCHAR(32) NOT NULL,
+    countryName CHAR(2) CHARACTER SET ASCII NOT NULL,    /* country code such DE, US, CH, ... */
+    countryCode NUMERIC(3) NOT NULL, /* numeric country code */
+    url VARCHAR(100),
+    history MEDIUMTEXT,
+    icon BLOB
+);
+
+INSERT INTO cities.Cities SET
+                              id = UUID_TO_BIN(UUID()),
+                              name = 'Berlin',
+                              countryName = 'DE',
+                              countryCode = 268,
+                              url = 'https://www.berlin.de/en/',
+                              history = 'German Empire, 3rd Reich, split into two, reunited :)';
+
+INSERT INTO cities.Cities SET
+                              id = UUID_TO_BIN(UUID()),
+                              name = 'Berlin',
+                              countryName = 'US',
+                              countryCode = 840,
+                              url = 'https://www.berlinnh.gov/',
+                              history = 'some weird country. They like guns';
+
+SELECT name, countryName, countryCode, url, history FROM cities.Cities ORDER BY countryName;