added tasks 0 to 1
This commit is contained in:
parent
b6d7709903
commit
03acb1a531
|
@ -0,0 +1,29 @@
|
|||
-- 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'))
|
||||
);
|
|
@ -0,0 +1,24 @@
|
|||
-- 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;
|
Loading…
Reference in New Issue