NSInteger and int giving exceptions

I'm trying to get data from a database using FMDB but having tried with futility for a while, I can't figure out why this is throwing an EXC_BAD_ACCESS exception. The parameter is passed in from an NSInteger, but I can neither log it nor use it in a SELECT statement. The code I have is:

-(SQLiteResult*) getClient:(bool)forceRefresh id:(NSString*)id forYear:(NSInteger)year {
    SQLiteResult *res;
    if(!forceRefresh){
        NSMutableArray *hereditaments = [[NSMutableArray alloc] init];
        NSLog([NSString stringWithFormat:@"SELECT * FROM Clients WHERE ID = %@ AND Year = %@", id, [NSString stringWithFormat:@"%@", year]]); // exception
        NSLog([NSString stringWithFormat:@"SELECT * FROM Clients WHERE ID = %@ AND Year = %@", id, year]]); // also exception
        FMResultSet *rs = [db executeQ开发者_运维百科uery:[NSString stringWithFormat: @"SELECT * FROM Clients WHERE ID = ? AND Year = %@", year], id]; // also exception
        FMResultSet *rs = [db executeQuery:[NSString stringWithFormat: @"SELECT * FROM Clients WHERE ID = ? AND Year = ?", id, year]]; // also exception

I'm on the verge of just passing it in as a string instead. Is there a safe way I can just use the year in the SQL statement?

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NSInteger is not an object type. Its just a typedef of type int. So, you can not use %@ as the format specifier. You should use %d.

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As your year variable is of NSInteger type you should use %d format and not %@ in your NSString creation