1. A computer-implemented method for scheduling tasks using queue protocols to control data access, the method comprising: receiving one or more first communications from a first user device, the one or more first communications corresponding to a first request for retrieving ticket data from a database, and the ticket data corresponding to an event; receiving one or more second communications from a second user device, the one or more second communications corresponding to a second request to access ticket data from the database; accessing a queue protocol that identifies a first processing phase and a second processing phase, the first processing phase occurring prior to the second processing phase, and the queue protocol enabling electronic tickets corresponding to the ticket data to be assigned responsive to requests during the second processing phase, but not the first processing phase; determining that each of the one or more first communications and the one or more second communications are received during the first processing phase; determining, based at least in part on the queue protocol, that the one or more first communications correspond to authentication data associated with completion of an authentication process; determining, based at least in part on the queue protocol, that the one or more second communications do not correspond to the authentication data; during the first processing phase: transmitting interface data to the first user device based on the determination that the one or more first communications correspond to the authentication data, the interface data causing an interface to be displayed at the first user device, the interface enabling the first user device to register for the event, registering for the event enabling the first user device to transmit a third request for one or more electronic tickets to the event during the first processing phase, receiving an indication that the first user device has registered for the event using the interface, receiving the third request from the first user device during the first processing phase, the third request including a first constraint for querying the database, and the first constraint being stored in association with the first user device during the first processing phase, and inhibiting the interface data from being transmitted to the second user device based on the determination that the one or more second communications do not correspond the authentication data, and inhibiting the interface data from being transmitted to the second user device preventing the second user device from being registered for the event during the first processing phase; and during the second processing phase: performing a first query of the database based on the first constraint, the first query being responsive to the third request, and the first query resulting in identification of at least one first electronic ticket that satisfies the first constraint, transmitting a third communication to the first user device, the third communication corresponding to a first identifier of the at least one first electronic ticket, transmitting the interface data to the second user device, the interface data causing the interface to be displayed at the second user device, and the interface enabling the second user device to transmit a fourth request for the one or more electronic tickets to the event, receiving the fourth request from the second user device, the fourth request corresponding to a second constraint for querying the database, performing a second query of the database based on the second constraint, the second query being responsive to the fourth request and being performed after the first query, and the second query resulting in identification of at least one second electronic ticket to the event, and transmitting a fourth communication to the second user device, the fourth communication corresponding to a second identifier of the at least one second electronic ticket.