Por ahora, esta lección está en inglés.
Ask sharper questions
Who has more than 1000 points? Who lives in Shiraz or Tabriz? Who plays golf? Plain equality cannot ask these. Query operators, words that start with $, can.
Por ahora, esta lección está en inglés.
Who has more than 1000 points? Who lives in Shiraz or Tabriz? Who plays golf? Plain equality cannot ask these. Query operators, words that start with $, can.