Testing SQL query writing skills

A system comprising:

• a processor;
• and
• a memory coupled to the processor, wherein the memory comprises:
• an authentication module configured to authenticate a participant (P) for writing an SQL query;
• an execution module configured to:
• provide access to the participant (P) to an emulated database through a shared pool of configurable computing resources;
• and
• execute the SQL query of the participant (P) against the emulated database;
• a database scaling module configured to scale volume of the emulated database by increasing volume of the emulated database by a percentage based on inputs received from the participant (P) to tune performance of the SQL query;
• and
• an evaluation module configured to evaluate performance efficiency of the SQL query against the emulated database, scaled based on the inputs of the participant (P).

A non-transitory computer-readable medium having computer-executable instructions that when executed perform acts comprising:

• receiving a request from a participant (P) to write an SQL query;
• providing an access for the participant (P) to an emulated database through a shared pool of configurable computing resources to receive a request from the participant (P) to execute the SQL query against the emulated database;
• scaling volume of the emulated database by increasing volume of the emulated database by a percentage based on inputs received from the participant (P) to tune performance of the SQL query;
• 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.