Generating discrete event simulation data

A computer system for generating discrete event simulation data, comprising:

• a memory storing instructions;
• a processor configured to execute the instructions to:
• retrieve a trajectory specifying a service access event for a customer accessing a service in a simulation;
• process, in a relational database query, one or more pending events corresponding to one or more customers accessing the service before the customer;
• process, in the relational database query, the service access event, wherein processing the service access event occurs after processing the one or more pending events;
• and
• provide a result for the relational database query, wherein the result comprises the trajectory, and one or more trajectories comprising the one or more pending events.

A non-transitory, computer-readable medium comprising machine-readable instructions executable by a processor to:

• retrieve a trajectory specifying a service access event for a customer accessing a service in a simulation;
• process, in a relational database query, one or more pending events corresponding to one or more customers accessing the service before the customer;
• process, in the relational database query, the service access event, wherein processing the service access event occurs after processing the one or more pending events;
• and
• provide a result for the relational database query, wherein the result comprises the trajectory, and one or more trajectories comprising the one or more pending events, wherein the relational database query is re-run until the simulation is complete.