Add checking of data

server/inc/checker.hpp

@@ -0,0 +1,3 @@
+
+
+void checker();

server/inc/sql.hpp

@@ -10,6 +10,12 @@ const char max_gen[] = "SELECT MAX(GEN) FROM prim_table WHERE USER_ID = ?;";
 
 const char get_unchecked[] = "SELECT USER_ID FROM prim_table WHERE CHECKED = 0 GROUP BY USER_ID;";
 
+const char get_gen[] = "SELECT HASH, POS, LIKED FROM prim_table WHERE USER_ID = ? AND GEN = ? ORDER BY POS ASC;";
+
+const char remove_gen[] = "DELETE FROM prim_table WHERE USER_ID = ? AND GEN >= ?;";
+
+const char set_checked[] = "UPDATE prim_table SET CHECKED = 1 WHERE USER_ID = ? AND GEN = ?;";
+
 constexpr char DB_NAME[] = "data.db";
 
 struct sqlite3;