init commit

db.sql

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+-- @block create table
+CREATE TABLE zeiten (
+    id SERIAL PRIMARY KEY,
+    logged_time TIMESTAMP DEFAULT NOW(),
+    card_id VARCHAR,
+    reader_id VARCHAR,
+    booking_type INTEGER
+);
+-- @block insert data
+INSERT INTO zeiten (card_id, reader_id, booking_type)
+VALUES ('test_card', 'test_reader', '2');
+-- @block select
+SELECT *
+FROM zeiten;
+-- @block select last entry from card id
+SELECT *
+FROM "zeiten"
+WHERE "card_id" = 'test_card'
+    AND "logged_time" >= now()::date + interval '1h'
+ORDER BY "logged_time" DESC
+LIMIT 1;
+-- @block delete table
+DROP TABLE IF EXISTS zeiten;