Pergunta de entrevista da empresa Vocational Training Council
How do you enhance a SQL query with poor performance?
Resposta da entrevista
Sigiloso
22 de abr. de 2021
Use EXPLAIN to check is there is key used in that query and what key(s) can be use
How do you enhance a SQL query with poor performance?
Sigiloso
Use EXPLAIN to check is there is key used in that query and what key(s) can be use