1. A method for testing SQL query writing skills, the method comprising: receiving a request from at least one participant to write an SQL query; providing an access for the at least one participant to an emulated database, wherein the at least one participant executes the SQL query against the emulated database; scaling the emulated database based on inputs received from the at least one participant; executing the SQL query against the emulated database to evaluate performance efficiency of the SQL query; and submitting the SQL query of the at least one participant for evaluation.