diff --git a/c_src/esqlite3_nif.c b/c_src/esqlite3_nif.c
index 18a1145..ae3fafc 100644
--- a/c_src/esqlite3_nif.c
+++ b/c_src/esqlite3_nif.c
@@ -20,6 +20,7 @@
 
 #include <erl_nif.h>
 #include <string.h>
+#include <stdio.h>
 
 #include "queue.h"
 #include "sqlite3.h"
@@ -491,12 +492,7 @@ do_step(ErlNifEnv *env, sqlite3 *db, sqlite3_stmt *stmt)
     if(rc == SQLITE_BUSY)
 	    return make_atom(env, "$busy");
 
-    if(rc == SQLITE_ERROR)
-        return make_sqlite3_error_tuple(env, rc, db);
-    if(rc == SQLITE_MISUSE)
-        return make_error_tuple(env, "misuse");
-
-    return make_error_tuple(env, "unexpected_return_value");
+    return make_sqlite3_error_tuple(env, rc, db);
 }
 
 static ERL_NIF_TERM
diff --git a/src/esqlite3.erl b/src/esqlite3.erl
index 597accc..9428040 100644
--- a/src/esqlite3.erl
+++ b/src/esqlite3.erl
@@ -198,7 +198,18 @@ exec(Sql, Connection) ->
 exec(Sql, {connection, _Ref, Connection}, Timeout) ->
     Ref = make_ref(),
     ok = esqlite3_nif:exec(Connection, Ref, self(), Sql),
-    receive_answer(Ref, Timeout).
+    receive_answer(Ref, Timeout);
+
+%% @spec exec(iolist(), list(term()), connection()) -> integer() | {error, error_message()}
+exec(Sql, Params, {connection, _, _}=Connection) when is_list(Params) ->
+    exec(Sql, Params, Connection, ?DEFAULT_TIMEOUT).
+
+%% @spec exec(iolist(), list(term()), connection(), timeout()) -> integer() | {error, error_message()}
+exec(Sql, Params, {connection, _, _}=Connection, Timeout) when is_list(Params) ->
+    {ok, Statement} = prepare(Sql, Connection, Timeout),
+    bind(Statement, Params),
+    step(Statement, Timeout).
+    
 
 %% @doc Insert records, returns the last rowid.
 %%