1. A method for testing SQL query writing skills, the method comprising: receiving a request from a participant (P) to write an SQL query; providing an access for the participant (P) to an emulated database for the participant (P) to request execution of the SQL query against the emulated database; scaling volume of the emulated database based on inputs received from the participant (P), wherein the scaling comprises increasing the volume of the emulated database by a percentage based on the inputs; executing the SQL query against the emulated database, scaled based on the inputs of the participant (P), to evaluate performance efficiency of the SQL query; and submitting the SQL query of the participant (P) for evaluation.