add sql

sql/create_tables.sql

@@ -0,0 +1,25 @@
+CREATE OR REPLACE PROCEDURE create_tables() AS $$
+	DROP TABLE IF EXISTS artist_website;
+	DROP TABLE IF EXISTS website;
+	DROP TABLE IF EXISTS artist;
+	
+	CREATE TABLE IF NOT EXISTS artist (
+		id serial PRIMARY KEY,
+		name text NOT NULL
+	);
+	
+	CREATE TABLE IF NOT EXISTS website (
+		id serial PRIMARY KEY,
+		name text NOT NULL
+	);
+	
+	CREATE TABLE IF NOT EXISTS artist_website (
+		id serial PRIMARY KEY,
+		url text NOT NULL,
+		folder_path text,
+		website_id integer,
+		artist_id integer,
+		CONSTRAINT aw_artist FOREIGN KEY (artist_id) REFERENCES artist (ID),
+		CONSTRAINT aw_website FOREIGN KEY (website_id) REFERENCES website (ID)
+	);
+$$ LANGUAGE SQL;