Bulks sourceEntry conversion

schema/bulks.sql

@@ -1,10 +1,17 @@
 CREATE TABLE bulks (
 	bulk_id INTEGER PRIMARY KEY,
-  sources_id INTEGER NOT NULL,
-  sources_pages TEXT NOT NULL,
 	short_name TEXT NOT NULL,
 	long_name TEXT NOT NULL,
 	numerical FLOAT NOT NULL,
   FOREIGN KEY (sources_id) REFERENCES sources(sources_id)
 );
 
+-- Joining table --
+CREATE TABLE bulks_sourceentries (
+	 id INTEGER PRIMARY KEY
+  ,bulk_id INTEGER NOT NULL
+  ,sourceentry_id INTEGER NOT NULL
+  ,UNIQUE (id, bulk_id, soruceentry_id),
+  ,FOREIGN KEY (bulk_id) REFERENCES bulks(bulk_id)
+  ,FOREIGN KEY (sourceentry_id) REFERENCES sourceentries(sourceentry_id)
+);