Question

I am using this code to insert the data in my database

but it is not working..

My data is not being inserted in the table ..

what can be the problem??

in function.h

 +(BOOL)insertStudentinfoData:(NSString *)first_name last_name:(NSString *)last_name phone_num:(NSString *)phone_num;

in function.m

 +(BOOL)insertStudentinfoData:(NSString *)first_name last_name:(NSString *)last_name phone_num:(NSString *)phone_num
  {
    NSString *sql = [NSString stringWithFormat:@"insert into add_data   
    values(NULL,'%@','%@','%@')",first_name,last_name,phone_num];
    return [DBOperation executeSQL:sql];
 }

And I am giving the data from this

[Function insertStudentinfoData:@"hello" last_name:@"w3qrq" phone_num:@"efew"];

but my data is not being inserted in the table

////In DBOperation.h

    +(BOOL) executeSQL:(NSString *)sqlTmp {

if(conn == SQLITE_OK) {
    NSLog(@"\n\n%@",sqlTmp);       

    const char *sqlStmt = [sqlTmp cStringUsingEncoding:NSUTF8StringEncoding];
    sqlite3_stmt *cmp_sqlStmt1;
    int returnValue = sqlite3_prepare_v2(database, sqlStmt, -1, &cmp_sqlStmt1, NULL);

    returnValue == SQLITE_OK ?  NSLog(@"\n Inserted \n") :NSLog(@"\n Not Inserted \n");

    sqlite3_step(cmp_sqlStmt1);
    sqlite3_finalize(cmp_sqlStmt1);

    if (returnValue == SQLITE_OK) {
        return TRUE;
    }
}
return FALSE;

}

Answer 1

I guess you are passing the NULL value for PRIMARY KEY, first reset the simulator

if you are not specifying the column name and inserting the values then you should pass the value for each column in particular order of column created otherwise its a good idea to specify column

NSString *sql = [NSString stringWithFormat:@"INSERT INTO add_data 
                     (first_name,last_name,phone_num) VALUE('%@','%@','%@')",first_name,last_name,phone_num];

or

NSString *sql =[NSString stringWithFormat:@"INSERT INTO add_data 
(first_name,last_name,phone_num,email,address,city,zip) VALUES 
('%@','%@','%@','%@','%@','%@','%@');",first_name,last_name,phone_num,email,addr‌​ess,city,zip];