Question

When i am trying to execute select query not executing .

after the below line of code execution of program stopped.

NSString *query = [NSString stringWithFormat:@"select * from maintable_master where din =? ",din];

Answer 1

if din is integer then,

NSString *query = [NSString stringWithFormat:@"select * from maintable_master where din =%d ",din];

and if din is string then,

NSString *query = [NSString stringWithFormat:@"select * from maintable_master where din ='%@' ",din];