1 . 建表语句：

NSString *sqlCrTable = [NSString stringWithFormat:
                            @"CREATE TABLE IF NOT EXISTS '%@'('%@' INTEGER PRIMARY KEY AUTOINCREMENT,'%@' TEXT,'%@' TEXT)",rollTableName,Id,ADPicURL,flag];

2 . 插入数据：

NSString *sqlAdd = [NSString stringWithFormat:
                    @"INSERT INTO '%@' ('%@','%@') VALUES ('%@','%@')",flag,imageName,(i == 2)?@"FIXED":@"SCROLL"];

3 . 查询数据：

NSString *sqlQuery = [NSString stringWithFormat:
                           @"SELECT * FROM %@ order by ID limit %d",proTableName,kOnceCount]; // 只能这样取，不能用top， 一次取出几条数据

4 . 取出某值中间的数据：

NSString *sqlQuery = [NSString stringWithFormat:
                          @" SELECT * FROM %@ where ID > %d order by ID limit %d",self.lastIndex,kOnceCount];

语句资料可参考：http://www.yiibai.com/sqlite/sqlite_sub_queries.html