Does "embed" in SQLite return SQLITE_OK or SQLITE_DONE?

Question

Does "embed" in SQLite return SQLITE_OK or SQLITE_DONE?

What does the insertion expression do in SQLite return if successful?

I always thought it should be SQLITE_DONE, but recently in my logs I found the following line:

sqlite3_step error: 'not an error'

And here is the code that registers the specified string:

prepareStatement(addTranslationStmt2, "INSERT INTO translations(lang1_wordid, lang2_wordid) VALUES(?, ?)");
if (!addTranslationStmt2) return -2;

sqlite3_bind_int(addTranslationStmt2, 1, word_id);
sqlite3_bind_int(addTranslationStmt2, 2, translation_id);

if(sqlite3_step(addTranslationStmt2) != SQLITE_DONE)
{
    NSLog(@"sqlite3_step error: '%s'", sqlite3_errmsg(database));
    sqlite3_reset(addTranslationStmt2);
    return -1;
}

sqlite3_reset(addTranslationStmt2);