System and method for efficiently transferring data for offline use

A computer program product comprising a non-transitory computer-readable medium storing computer-readable program code capable of being executed by one or more processors, the program code comprising computer-readable instructions configurable to cause:

• generating a first database for a client device, the first database including a plurality of database records, the client device being a handheld mobile device;
• storing, in association with the first database, a client identifier of the client device;
• transmitting the first database to the client device responsive to receiving a first message from the client device;
• after transmitting the first database to the client device and responsive to receiving a second message from the client device, obtaining one or more data;
• generating a delta between database records stored in the first database and the data, the delta representing database record data not stored in the first database;
• generating a database message indicating the delta and including a client directive to update the first database according to the delta;
• suspending or refraining from transmission of the database message to the client device responsive to receiving a third message from the client device, the third message indicating that the client device has insufficient memory associated with the directive to update the first database according to the delta;
• verifying that the client device has sufficient memory by at least processing a fourth message received from the client device, the fourth message indicating that the client device has released memory and indicating an amount of available memory;
• and
• resuming or initiating transmission of the database message to the client device responsive to verifying that the client device has sufficient memory.

A method, comprising:

• generating a first database for a client device, the first database including a plurality of database records, the client device being a handheld mobile device;
• storing, in association with the first database, a client identifier of the client device;
• transmitting the first database to the client device responsive to receiving a first message from the client device;
• after transmitting the first database to the client device and responsive to receiving a second message from the client device, obtaining one or more data;
• generating a delta between database records stored in the first database and the data, the delta representing database record data not stored in the first database;
• generating a database message indicating the delta and including a client directive to update the first database according to the delta;
• suspending or refraining from transmission of the database message to the client device responsive to receiving a third message from the client device, the third message indicating that the client device has insufficient memory associated with the directive to update the first database according to the delta;
• verifying that the client device has sufficient memory by at least processing a fourth message received from the client device, the fourth message indicating that the client device has released memory and indicating an amount of available memory;
• and
• resuming or initiating transmission of the database message to the client device responsive to verifying that the client device has sufficient memory.