Initial commit

migrations/003_create-triggers.sql

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+CREATE TRIGGER IF NOT EXISTS CHK_Bookings_Insert BEFORE INSERT ON Bookings BEGIN
+SELECT
+  RAISE (
+    FAIL,
+    "Reservation of table is not possible due to the existing reservation"
+  )
+FROM
+  (
+    SELECT
+      datetime (NEW.reservation) AS new_res_dt,
+      datetime (reservation) AS res_dt,
+      datetime (reservation, time_reserve) AS reserved_until
+    FROM
+      Bookings
+  )
+WHERE
+  new_res_dt >= res_dt
+  OR new_res_dt < reserved_until;
+
+--
+END;