14 ื˜ื™ื ื’ื– ืื™ืš ื•ื•ื™ื ื˜ืฉืŸ ืื™ืš ื’ืขื•ื•ืื•ืกื˜ ืื™ื™ื“ืขืจ ืื™ืš ืึธื ื”ื™ื™ื‘ืŸ ืžื™ื˜ MongoDB

ื“ื™ ืื™ื‘ืขืจื–ืขืฆื•ื ื’ ืคื•ืŸ ื“ืขื ืึทืจื˜ื™ืงืœ ืื™ื– ื’ืขื•ื•ืขืŸ ืฆื•ื’ืขื’ืจื™ื™ื˜ ืื•ื™ืฃ ื“ื™ ืขืจืขื•ื• ืคื•ืŸ ื“ื™ ืึธื ื”ื™ื™ื‘ ืคื•ืŸ ื“ื™ ืงื•ืจืก "ื ื™ื˜-ืจื™ืœื™ื™ืฉืึทื ืึทืœ ื“ืึทื˜ืึทื‘ื™ื™ืกื™ื–".

14 ื˜ื™ื ื’ื– ืื™ืš ื•ื•ื™ื ื˜ืฉืŸ ืื™ืš ื’ืขื•ื•ืื•ืกื˜ ืื™ื™ื“ืขืจ ืื™ืš ืึธื ื”ื™ื™ื‘ืŸ ืžื™ื˜ MongoDB

ื›ื™ื™ืœื™ื™ืฅ:

  • ืขืก ืื™ื– ื’ืึธืจ ื•ื•ื™ื›ื˜ื™ืง ืฆื• ืึทื ื˜ื•ื•ื™ืงืœืขืŸ ืึท ืกื˜ืฉืขืžืึท ืืคื™ืœื• ื›ืึธื˜ืฉ ืขืก ืื™ื– ืึทืคึผืฉืึทื ืึทืœ ืื™ืŸ MongoDB.
  • ืคึผื•ื ืงื˜ ืึทื–ื•ื™, ื™ื ื“ืขืงืกื™ื– ืžื•ื–ืŸ ื’ืœื™ื™ึทื›ืŸ ื“ื™ื™ืŸ ืกื›ืขืžืข ืื•ืŸ ืึทืงืกืขืก ืคึผืึทื˜ืขืจื ื–.
  • ื•ื™ืกืžื™ื™ื“ืŸ ื ื™ืฆืŸ ื’ืจื•ื™ืก ืึทื‘ื“ื–ืฉืขืงืฅ ืื•ืŸ ื’ืจื•ื™ืก ืขืจื™ื™ื–.
  • ื–ื™ื™ืŸ ืึธืคึผื’ืขื”ื™ื˜ ืžื™ื˜ MongoDB ืกืขื˜ื˜ื™ื ื’ืก, ืกืคึผืขืฆื™ืขืœ ื•ื•ืขืŸ ืขืก ืงื•ืžื˜ ืฆื• ื–ื™ื›ืขืจื”ื™ื™ื˜ ืื•ืŸ ืจื™ืœื™ื™ืึทื‘ื™ืœืึทื˜ื™.
  • MongoDB ื”ืื˜ ื ื™ืฉื˜ ืึท ืึธื ืคึฟืจืขื’ ืึธืคึผื˜ื™ืžื™ื–ืขืจ, ืึทื–ื•ื™ ืื™ืจ ืžื•ื–ืŸ ื–ื™ื™ืŸ ืึธืคึผื’ืขื”ื™ื˜ ื•ื•ืขืŸ ืื™ืจ ื“ื•ืจื›ืคื™ืจืŸ ืึธื ืคึฟืจืขื’ ืึทืคึผืขืจื™ื™ืฉืึทื ื–.

ืื™ืš ื”ืึธื‘ืŸ ืฉื•ื™ืŸ ืืจื‘ืขื˜ืŸ ืžื™ื˜ ื“ืึทื˜ืึทื‘ื™ื™ืกื™ื– ืคึฟืึทืจ ืึท ืœืึทื ื’ ืฆื™ื™ึทื˜, ืึธื‘ืขืจ ื‘ืœื•ื™ื– ืœืขืฆื˜ื ืก ื“ื™ืกืงืึทื•ื•ืขืจื“ MongoDB. ืขืก ื–ืขื ืขืŸ ืขื˜ืœืขื›ืข ื–ืื›ืŸ ื•ื•ืึธืก ืื™ืš ื•ื•ื™ื ื˜ืฉืŸ ืื™ืš ื’ืขื•ื•ืื•ืกื˜ ืื™ื™ื“ืขืจ ืื™ืš ืกื˜ืึทืจื˜ืขื“ ืืจื‘ืขื˜ืŸ ืžื™ื˜ ืื™ื. ื•ื•ืขืŸ ืึท ืžืขื ื˜ืฉ ื”ืื˜ ืฉื•ื™ืŸ ื“ืขืจืคืึทืจื•ื ื’ ืื™ืŸ ืึท ื–ื™ื›ืขืจ ืคืขืœื“, ื–ื™ื™ ื”ืึธื‘ืŸ ืคึผืจื™ืงืึทื ืกื™ื•ื•ื“ ื‘ืึทื’ืจื™ืฃ ื•ื•ืขื’ืŸ ื•ื•ืึธืก ื“ืึทื˜ืึทื‘ื™ื™ืกื™ื– ื–ืขื ืขืŸ ืื•ืŸ ื•ื•ืึธืก ื–ื™ื™ ื˜ืึธืŸ. ืื™ืŸ ื”ืืคืขื ื•ื ื’ืขืŸ ืฆื• ืžืึทื›ืŸ ืขืก ื’ืจื™ื ื’ืขืจ ืคึฟืึทืจ ืื ื“ืขืจืข ืฆื• ืคึฟืึทืจืฉื˜ื™ื™ืŸ, ืื™ืš ืคืึธืจืฉื˜ืขืœืŸ ืึท ืจืฉื™ืžื” ืคื•ืŸ ืคึผืจืึธืกื˜ ืžื™ืกื˜ื™ื™ืงืก.

ืฉืึทืคึฟืŸ ืึท MongoDB ืกืขืจื•ื•ืขืจ ืึธืŸ ืึธื˜ืขื ื˜ืึทืงื™ื™ืฉืึทืŸ

ืฆื•ื ื‘ืึทื“ื•ื™ืขืจืŸ, MongoDB ืื™ื– ืื™ื ืกื˜ืึทืœื™ืจืŸ ืึธืŸ ืึธื˜ืขื ื˜ืึทืงื™ื™ืฉืึทืŸ ื“ื•ืจืš ืคืขืœื™ืงื™ื™ึทื˜. ืคึฟืึทืจ ืึท ื•ื•ืขืจืงืกื˜ื™ื™ืฉืึทืŸ ืึทืงืกืขืกื˜ ืœืึธื•ืงืึทืœื™, ื“ืขื ืคื™ืจื•ื ื’ ืื™ื– ื ืึธืจืžืึทืœ. ืึธื‘ืขืจ ื–ื™ื ื˜ MongoDB ืื™ื– ืึท ืžืึทืœื˜ื™-ื‘ืึทื ื™ืฆืขืจ ืกื™ืกื˜ืขื ื•ื•ืึธืก ืœื™ื™ืงืก ืฆื• ื ื•ืฆืŸ ื’ืจื•ื™ืก ืึทืžืึทื•ื ืฅ ืคื•ืŸ ื–ื›ึผืจื•ืŸ, ืขืก ื•ื•ืขื˜ ื–ื™ื™ืŸ ื‘ืขืกืขืจ ืื•ื™ื‘ ืื™ืจ ืฉื˜ืขืœืŸ ืขืก ืื•ื™ืฃ ืึท ืกืขืจื•ื•ืขืจ ืžื™ื˜ ื•ื•ื™ ืคื™ืœ ื‘ืึทืจืึทืŸ ื•ื•ื™ ืžืขื’ืœืขืš, ืืคื™ืœื• ืื•ื™ื‘ ืื™ืจ ื ืึธืจ ื ื•ืฆืŸ ืขืก ืคึฟืึทืจ ืึทื ื˜ื•ื•ื™ืงืœื•ื ื’. ื™ื ืกื˜ืึธืœื™ื ื’ ืื•ื™ืฃ ื“ื™ ืกืขืจื•ื•ืขืจ ื“ื•ืจืš ื“ื™ ืคืขืœื™ืงื™ื™ึทื˜ ืคึผืึธืจื˜ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืคึผืจืึธื‘ืœืขืžืึทื˜ื™ืง, ืกืคึผืขืฆื™ืขืœ ืื•ื™ื‘ ืงื™ื™ืŸ ื“ื–ืฉืึทื•ื•ืึทืกืงืจื™ืคึผื˜ ืงืึธื“ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืขืงืกืึทืงื™ื•ื˜ืึทื“ ืื™ืŸ ื“ื™ ื‘ืขื˜ืŸ (ืœืžืฉืœ, $where ื•ื•ื™ ืึท ื’ืขื“ืึทื ืง ืคึฟืึทืจ ื™ื ื“ื–ืฉืขืงืฉืึทื ื–).

ืขืก ื–ืขื ืขืŸ ืขื˜ืœืขื›ืข ืึธื˜ืขื ื˜ืึทืงื™ื™ืฉืึทืŸ ืžืขื˜ื”ืึธื“ืก, ืึธื‘ืขืจ ื“ื™ ื™ื–ื™ืึทืกื˜ ืื™ื– ืฆื• ืฉื˜ืขืœืŸ ืึท ื‘ืึทื ื™ืฆืขืจ ืฉื™ื™ึทืŸ / ืคึผืึทืจืึธืœ. ื ื™ืฆืŸ ื“ืขื ื’ืขื“ืึทื ืง ื‘ืฉืขืช ืื™ืจ ื˜ืจืึทื›ื˜ืŸ ื•ื•ืขื’ืŸ ืคืึทื ื˜ืึทื–ื™ืข ืึธื˜ืขื ื˜ืึทืงื™ื™ืฉืึทืŸ ื‘ืื–ื™ืจื˜ ืื•ื™ืฃ ืœื“ืึทืคึผ. ื•ื•ืขืŸ ืขืก ืงื•ืžื˜ ืฆื• ื–ื™ื›ืขืจื”ื™ื™ื˜, MongoDB ื–ืึธืœ ื–ื™ื™ืŸ ืงืขืกื™ื™ื“ืขืจ ื“ืขืจื”ื™ื™ึทื ื˜ื™ืงื˜, ืื•ืŸ ืœืึธื’ืก ื–ืึธืœ ืฉื˜ืขื ื“ื™ืง ื–ื™ื™ืŸ ืึธืคึผื’ืขืฉื˜ืขืœื˜ ืคึฟืึทืจ ืึทื ืึธื˜ืขืจื™ื™ื–ื“ ืึทืงืกืขืก. ืคึฟืึทืจ ื‘ื™ื™ึทืฉืคึผื™ืœ, ืื™ืš ื•ื•ื™ ืฆื• ืื•ื™ืกืงืœื™ื™ึทื‘ืŸ ืึท ืึทื ื“ืขืจืฉ ืคึผืึธืจื˜ ื•ื•ื™ ื“ื™ ืคืขืœื™ืงื™ื™ึทื˜ ืคึผืึธืจื˜.

ื“ื• ื–ืืœืกื˜ ื ื™ืฉื˜ ืคืึทืจื’ืขืกืŸ ืฆื• ื‘ื™ื ื“ืŸ ื“ื™ ื‘ืึทืคืึทืœืŸ ื™ื™ื‘ืขืจืคืœืึทืš ืฆื• MongoDB

MongoDB ื–ื™ื›ืขืจื”ื™ื™ื˜ ื˜ืฉืขืงืœื™ืกื˜ ื›ึผื•ืœืœ ื’ื•ื˜ ืขืฆื•ืช ืคึฟืึทืจ ืจื™ื“ื•ืกื™ื ื’ ื“ื™ ืจื™ื–ื™ืงื™ืจืŸ ืคื•ืŸ ื ืขืฅ ื™ื ื˜ืจื•ื–ืฉืึทืŸ ืื•ืŸ ื“ืึทื˜ืŸ ืœื™ืงืึทื“ื–ืฉ. ืขืก ืื™ื– ื’ืจื™ื ื’ ืฆื• ื‘ืึทืจืฉื˜ ืขืก ืึทื•ื•ืขืง ืื•ืŸ ื–ืึธื’ืŸ ืึทื– ืึท ืึทื ื˜ื•ื•ื™ืงืœื•ื ื’ ืกืขืจื•ื•ืขืจ ื“ืึทืจืฃ ื ื™ืฉื˜ ืึท ื”ื•ื™ืš ื–ื™ื›ืขืจื”ื™ื™ื˜ ืžื“ืจื’ื”. ืึธื‘ืขืจ, ื“ืึธืก ืื™ื– ื ื™ืฉื˜ ืึทื–ื•ื™ ืคึผืฉื•ื˜ ืื•ืŸ ื“ืึธืก ืึทืคึผืœื™ื™ื– ืฆื• ืึทืœืข MongoDB ืกืขืจื•ื•ืขืจืก. ืื™ืŸ ื‘ืึทื–ื•ื ื“ืขืจ, ืื•ื™ื‘ ืขืก ืื™ื– ืงื™ื™ืŸ ืงืึทืžืคึผืขืœื™ื ื’ ืกื™ื‘ื” ืฆื• ื ื•ืฆืŸ mapReduce, group ืึธื“ืขืจ $ื•ื•ืื•, ืื™ืจ ื“ืึทืจืคึฟืŸ ืฆื• ื“ื™ืกื™ื™ื‘ืึทืœ ื“ื™ ื ื•ืฆืŸ ืคื•ืŸ ืึทืจื‘ื™ื˜ืจืึทืจื™ืฉ ืงืึธื“ ืื™ืŸ ื“ื–ืฉืึทื•ื•ืึทืกืงืจื™ืคึผื˜ ื“ื•ืจืš ืฉืจื™ื™ื‘ืŸ ืื™ืŸ ื“ื™ ืงืึทื ืคื™ื’ื™ืขืจื™ื™ืฉืึทืŸ ื˜ืขืงืข javascriptEnabled:false. ื–ื™ื ื˜ ื“ืึทื˜ืŸ ื˜ืขืงืขืก ื–ืขื ืขืŸ ื ื™ืฉื˜ ื™ื ืงืจื™ืคึผื˜ื™ื“ ืื™ืŸ ื ืึธืจืžืึทืœ MongoDB, ืขืก ืื™ื– ื–ื™ื ืขืŸ ืฆื• ืœื•ื™ืคืŸ MongoDB ืžื™ื˜ ื“ืขื“ืึทืงื™ื™ื˜ืึทื“ ื‘ืึทื ื™ืฆืขืจ, ื•ื•ืึธืก ื”ืื˜ ืคื•ืœ ืึทืงืกืขืก ืฆื• ื˜ืขืงืขืก, ืžื™ื˜ ืœื™ืžื™ื˜ืขื“ ืึทืงืกืขืก ื‘ืœื•ื™ื– ืฆื• ืขืก ืื•ืŸ ื“ื™ ืคื™ื™ื™ืงื™ื™ื˜ ืฆื• ื ื•ืฆืŸ ื“ื™ ืึทืคึผืขืจื™ื™ื˜ื™ื ื’ ืกื™ืกื˜ืขื ืก ืื™ื™ื’ืขื ืข ื˜ืขืงืข ืึทืงืกืขืก ืงืึธื ื˜ืจืึธืœืก.

ื˜ืขื•ืช ื‘ืฉืขืช ื“ืขื•ื•ืขืœืึธืคึผื™ื ื’ ื“ืขื ืงืจื™ื™ึทื–

MongoDB ื˜ื•ื˜ ื ื™ืฉื˜ ื ื•ืฆืŸ ืึท ืกื˜ืฉืขืžืึท. ืื‘ืขืจ ื“ืึธืก ื˜ื•ื˜ ื ื™ืฉื˜ ืžื™ื™ื ืขืŸ ืึทื– ื“ื™ ืกื›ืขืžืข ืื™ื– ื ื™ื˜ ื“ืืจืฃ. ืื•ื™ื‘ ืื™ืจ ื ืึธืจ ื•ื•ื™ืœืŸ ืฆื• ืงืจืึธื ื“ืึธืงื•ืžืขื ื˜ืŸ ืึธืŸ ืงื™ื™ืŸ ืงืึธื ืกื™ืกื˜ืขื ื˜ ืžื•ืกื˜ืขืจ, ืกื˜ืึธืจื™ื ื’ ื–ื™ื™ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืฉื ืขืœ ืื•ืŸ ื’ืจื™ื ื’, ืึธื‘ืขืจ ืจื™ื˜ืจื™ื•ื•ื™ื ื’ ื–ื™ื™ ืฉืคึผืขื˜ืขืจ ืงืขื ืขืŸ ื–ื™ื™ืŸ ืฉื•ื•ืขืจ. ืคืึทืจืฉื™ืœื˜ืŸ ืฉื•ื•ืขืจ.

ืงืœืึทืกื™ืฉ ืึทืจื˜ื™ืงืœ "6 ื›ึผืœืœื™ื ืคื•ืŸ ื’ืจืึธื‘ืขืจ ืคื™ื ื’ืขืจ ืคึฟืึทืจ MongoDB ืกื˜ืฉืขืžืึท ืคึผืœืึทืŸ" ืขืก ืื™ื– ื•ื•ืขืจื˜ ืึท ืœื™ื™ืขื ืขืŸ, ืื•ืŸ ืคึฟืขื™ึดืงื™ื™ื˜ืŸ ื•ื•ื™ ืกื›ืขืžืข Explorer ืื™ืŸ ื“ื™ ื“ืจื™ื˜-ืคึผืึทืจื˜ื™ื™ ื’ืขืฆื™ื™ึทื’ ืกื˜ื•ื“ื™ืึธ 3 ื˜, ืขืก ืื™ื– ื•ื•ืขืจื˜ ืฆื• ื ื•ืฆืŸ ืคึฟืึทืจ ืจืขื’ื•ืœืขืจ ื˜ืฉืขืงืก ืคื•ืŸ ืกืขืจืงืึทืฅ.

ื“ื• ื–ืืœืกื˜ ื ื™ืฉื˜ ืคืึทืจื’ืขืกืŸ ื“ื™ ืกืึธืจื˜ ืกื“ืจ

ืคืืจื’ืขืกืŸ ืกืึธืจื˜ ืกื“ืจ ืงืขื ืขืŸ ืึธื ืžืึทื›ืŸ ืžืขืจ ืคืจืึทืกื˜ืจื™ื™ืฉืึทืŸ ืื•ืŸ ื•ื•ื™ืกื˜ ืžืขืจ ืฆื™ื™ื˜ ื•ื•ื™ ืงื™ื™ืŸ ืื ื“ืขืจืข ืคืึทืœืฉ ืงืึทื ืคื™ื’ื™ืขืจื™ื™ืฉืึทืŸ. ื“ื•ืจืš ืคืขืœื™ืงื™ื™ึทื˜ MongoBD ื ื™ืฆื˜ ื‘ื™ื™ื ืขืจื™ ืกืึธืจื˜. ืื‘ืขืจ ืขืก ืื™ื– ืึทื ืœื™ื™ืงืœื™ ืฆื• ื–ื™ื™ืŸ ื ื•ืฆื™ืง ืคึฟืึทืจ ื•ื•ืขืจ ืขืก ื™ื–. ืคืึทืœ-ืฉืคึผื™ืจืขื•ื•ื“ื™ืง, ืึทืงืฆืขื ื˜-ืฉืคึผื™ืจืขื•ื•ื“ื™ืง, ื‘ื™ื™ื ืขืจื™ ืกืึธืจืฅ ื–ืขื ืขืŸ ื’ืขื”ืืœื˜ืŸ ื˜ืฉื™ืงืึทื•ื•ืข ืึทื ืึทื›ืจืึธื ื™ื–ืึทืžื– ืฆื•ื–ืืžืขืŸ ืžื™ื˜ ืงืจืขืœืŸ, ืงืึทืคื˜ืึทื ืก ืื•ืŸ ื’ืขื’ืจื™ื™ึทื–ืœื˜ ื•ื•ืึธื ืฆืขืก ืฆื•ืจื™ืง ืื™ืŸ ื“ื™ 80 ืก ืคื•ืŸ ื“ื™ ืœืขืฆื˜ืข ื™ืึธืจื”ื•ื ื“ืขืจื˜. ืื™ืฆื˜ ื–ื™ื™ืขืจ ื ื•ืฆืŸ ืื™ื– ืึทื ืคืขืจื’ื™ื•ื•ืึทื‘ืึทืœ. ืื™ืŸ ืคืึทืงื˜ื™ืฉ ืœืขื‘ืŸ, "ืžืึธื˜ืึธืจืกื™ืงืœืข" ืื™ื– ื“ื™ ื–ืขืœื‘ืข ื•ื•ื™ "ืžืึธื˜ืึธืจืกื™ืงืœืข". ืื•ืŸ "ื‘ืจื™ื˜ืึทืŸ" ืื•ืŸ "ื‘ืจื™ื˜ืึทืŸ" ื–ืขื ืขืŸ ื“ื™ ื–ืขืœื‘ืข ืึธืจื˜. ื ืงืœื™ื™ืŸ ืื•ืช ืื™ื– ืคืฉื•ื˜ ื“ืขืจ ื”ื•ื™ื›ืขืจ ืขืงื•ื•ื™ื•ื•ืึทืœืขื ื˜ ืคื•ืŸ ื ื”ื•ื™ืคื˜ ืื•ืช. ืื•ืŸ ื›'ื”ืื‘ ืžื™ืš ื ื™ืฉื˜ ืื ื’ืขื”ื•ื™ื‘ืขืŸ ืฆื• ืขื ื“ื™ื’ืŸ ื“ื™ืืงืจื™ื˜ื™ืง. ื•ื•ืขืŸ ืงืจื™ื™ื™ื˜ื™ื ื’ ืึท ื“ืึทื˜ืึทื‘ื™ื™ืก ืื™ืŸ MongoDB, ื ื•ืฆืŸ ืึทืงืฆืขื ื˜-ื™ื ืกืขื ืกื™ื˜ื™ื•ื• ืงืึทืœืึทืœื™ื™ืฉืึทืŸ ืื•ืŸ ืจืขื’ื™ืกื˜ืจื™ืจืŸ, ื•ื•ืึธืก ืฉื˜ื™ืžืขืŸ ืฆื• ื“ืขืจ ืฉืคึผืจืึทืš ืื•ืŸ ืกื™ืกื˜ืขื ื‘ืึทื ื™ืฆืขืจ ืงื•ืœื˜ื•ืจ. ื“ืึธืก ื•ื•ืขื˜ ืžืึทื›ืŸ ื–ื•ื›ืŸ ื“ื•ืจืš ืฉื˜ืจื™ืงืœ ื“ืึทื˜ืŸ ืคื™ืœ ื’ืจื™ื ื’ืขืจ.

ืฉืึทืคึฟืŸ ื–ืึทืžืœื•ื ื’ืขืŸ ืžื™ื˜ ื’ืจื•ื™ืก ื“ืึธืงื•ืžืขื ื˜ืŸ

MongoDB ืื™ื– ืฆื•ืคืจื™ื“ืŸ ืฆื• ื‘ืึทืœืขื‘ืึธืก ื’ืจื•ื™ืก ื“ืึธืงื•ืžืขื ื˜ืŸ ืึทืจื•ื™ืฃ ืฆื• 16 ืžื‘ ืื™ืŸ ื–ืึทืžืœื•ื ื’ืขืŸ, ืื•ืŸ GridFS ื“ื™ื–ื™ื™ื ื“ ืคึฟืึทืจ ื’ืจื•ื™ืก ื“ืึธืงื•ืžืขื ื˜ืŸ ื’ืจืขืกืขืจ ื•ื•ื™ 16 ืžืขื’ืื‘ื™ื™ื˜ืŸ. ืื‘ืขืจ ื ืึธืจ ื•ื•ื™ื™ึทืœ ื’ืจื•ื™ืก ื“ืึธืงื•ืžืขื ื˜ืŸ ืงืขื ืขืŸ ื–ื™ื™ืŸ ื’ืขืฉื˜ืขืœื˜ ื“ืึธืจื˜, ืกื˜ืึธืจื™ื ื’ ื–ื™ื™ ื“ืึธืจื˜ ืื™ื– ื ื™ืฉื˜ ืึท ื’ื•ื˜ ื’ืขื“ืึทื ืง. MongoDB ื•ื•ืขื˜ ืึทืจื‘ืขื˜ืŸ ื‘ืขืกื˜ืขืจ ืื•ื™ื‘ ืื™ืจ ืงืจืึธื ื™ื—ื™ื“ ื“ืึธืงื•ืžืขื ื˜ืŸ ื•ื•ืึธืก ื–ืขื ืขืŸ ืึท ื‘ื™ืกืœ ืงื™ืœืื‘ื™ื™ื˜ ืื™ืŸ ื’ืจื™ื™ืก, ื˜ืจืขืึทื˜ื™ื ื’ ื–ื™ื™ ืžืขืจ ื•ื•ื™ ืจืึธื•ื– ืื™ืŸ ืึท ื‘ืจื™ื™ื˜ ืกืงืœ ื˜ื™ืฉ. ื’ืจื•ื™ืก ื“ืึธืงื•ืžืขื ื˜ืŸ ื•ื•ืขื˜ ื–ื™ื™ืŸ ืึท ืžืงื•ืจ ืคื•ืŸ ืคึผืจืึธื‘ืœืขืžืก ืžื™ื˜ ืคึผืจืึธื•ื“ืึทืงื˜ื™ื•ื•ืึทื˜ื™.

ืฉืืคืŸ ื“ืึธืงื•ืžืขื ื˜ืŸ ืžื™ื˜ ื’ืจื•ื™ืก ืขืจื™ื™ื–

ื“ืึธืงื•ืžืขื ื˜ืŸ ืงืขื ืขืŸ ืึทื ื˜ื”ืึทืœื˜ืŸ ืขืจื™ื™ื–. ืขืก ืื™ื– ื‘ืขืกื˜ืขืจ ืื•ื™ื‘ ื“ื™ ื ื•ืžืขืจ ืคื•ืŸ ืขืœืขืžืขื ื˜ืŸ ืื™ืŸ ื“ื™ ืžืขื ื’ืข ืื™ื– ื•ื•ื™ื™ึทื˜ ืคื•ืŸ ืึท ืคื™ืจ-ืฆื™ืคึฟืขืจ ื ื•ืžืขืจ. ืื•ื™ื‘ ืขืœืขืžืขื ื˜ืŸ ื–ืขื ืขืŸ ืึธืคื˜ ืžื•ืกื™ืฃ ืฆื• ืึท ืžืขื ื’ืข, ืขืก ื•ื•ืขื˜ ืคืึทืจื’ืจืขืกืขืจืŸ ื“ื™ ื“ืึธืงื•ืžืขื ื˜ ืžื™ื˜ ืขืก ืื•ืŸ ื•ื•ืขื˜ ื–ื™ื™ืŸ ืคืืจืœืื ื’ื˜ ืžืึทืš, ื•ื•ืึธืก ืžื™ื˜ืœ ืขืก ื•ื•ืขื˜ ื–ื™ื™ืŸ ื ื™ื™ื˜ื™ืง ื“ืขืจื”ื™ื™ึทื ื˜ื™ืงืŸ ื™ื ื“ืขืงืกื™ื– ืื•ื™ืš. ื•ื•ืขืŸ ืื™ืจ ืฉื™ื™ึทืขืš-ื™ื ื“ืขืงืกื™ื ื’ ืึท ื“ืึธืงื•ืžืขื ื˜ ืžื™ื˜ ืึท ื’ืจื•ื™ืก ืžืขื ื’ืข, ื“ื™ ื™ื ื“ืขืงืกื™ื– ื•ื•ืขื˜ ืึธืคื˜ ื–ื™ื™ืŸ ืึธื•ื•ื•ืขืจืจื™ื˜ืึทืŸ, ื•ื•ื™ื™ึทืœ ืขืก ืื™ื– ืึท ืจืขืงืึธืจื“, ื•ื•ืึธืก ืกื˜ืึธืจื– ื–ื™ื™ึทืŸ ืื™ื ื“ืขืงืก. ื“ืขื ืฉื™ื™ึทืขืš-ื™ื ื“ืขืงืกื™ื ื’ ืื•ื™ืš ืึทืงืขืจื– ื•ื•ืขืŸ ืึท ื“ืึธืงื•ืžืขื ื˜ ืื™ื– ื™ื ืกืขืจื˜ืึทื“ ืึธื“ืขืจ ืื•ื™ืกื’ืขืžืขืงื˜.

MongoDB ื”ืื˜ ืขืคึผืขืก ื’ืขืจื•ืคืŸ "ืคื™ืœ ืคืึทืงื˜ืึธืจ", ื•ื•ืึธืก ื’ื™ื˜ ืคึผืœืึทืฅ ืคึฟืึทืจ ื“ืึธืงื•ืžืขื ื˜ืŸ ืฆื• ื•ื•ืึทืงืกืŸ ืฆื• ืžื™ื ืึทืžื™ื™ื– ื“ืขื ืคึผืจืึธื‘ืœืขื.
ืื™ืจ ืงืขืŸ ื˜ืจืึทื›ื˜ืŸ ืึทื– ืื™ืจ ืงืขื ืขืŸ ื˜ืึธืŸ ืึธืŸ ืžืขื ื’ืข ื™ื ื“ืขืงืกื™ื ื’. ืฆื•ื ื‘ืึทื“ื•ื™ืขืจืŸ, ื“ื™ ืคืขืœืŸ ืคื•ืŸ ื™ื ื“ืขืงืกื™ื– ืงืขืŸ ืคืึทืจืฉืึทืคืŸ ืื™ืจ ืฆื• ื”ืึธื‘ืŸ ืื ื“ืขืจืข ืคึผืจืึธื‘ืœืขืžืก. ื–ื™ื ื˜ ื“ืึธืงื•ืžืขื ื˜ืŸ ื–ืขื ืขืŸ ืกืงืึทื ื“ ืคื•ืŸ ืึธื ื”ื™ื™ื‘ ืฆื• ืขื ื“ื™ืงืŸ, ื–ื•ื›ืŸ ืคึฟืึทืจ ืขืœืขืžืขื ื˜ืŸ ืื™ืŸ ื“ื™ ืกื•ืฃ ืคื•ืŸ ื“ื™ ืžืขื ื’ืข ื•ื•ืขื˜ ื ืขืžืขืŸ ืžืขืจ, ืื•ืŸ ืจื•ื‘ึฟ ืึทืคึผืขืจื™ื™ืฉืึทื ื– ืคึฟืึทืจื‘ื•ื ื“ืŸ ืžื™ื˜ ืึทื–ืึท ืึท ื“ืึธืงื•ืžืขื ื˜ ื•ื•ืขื˜ ื–ื™ื™ืŸ ืคึผืึทืžืขืœืขืš.

ื“ื• ื–ืืœืกื˜ ื ื™ืฉื˜ ืคืึทืจื’ืขืกืŸ ืึทื– ื“ื™ ืกื“ืจ ืคื•ืŸ ื“ื™ ืกื˜ืึทื’ืขืก ืื™ืŸ ืึท ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ืื™ื– ื•ื•ื™ื›ื˜ื™ืง

ืื™ืŸ ืึท ื“ืึทื˜ืึทื‘ื™ื™ืก ืกื™ืกื˜ืขื ืžื™ื˜ ืึท ืึธื ืคึฟืจืขื’ ืึธืคึผื˜ื™ืžื™ื–ืขืจ, ื“ื™ ืคึฟืจืื’ืŸ ืื™ืจ ืฉืจื™ื™ึทื‘ืŸ ื–ืขื ืขืŸ ื“ืขืจืงืœืขืจื•ื ื’ืขืŸ ืคื•ืŸ ื•ื•ืึธืก ืื™ืจ ื•ื•ื™ืœืŸ ืฆื• ื‘ืึทืงื•ืžืขืŸ, ื ื™ืฉื˜ ื•ื•ื™ ืฆื• ื‘ืึทืงื•ืžืขืŸ ืขืก. ื“ืขื ืžืขืงืึทื ื™ื–ืึทื ืึทืจื‘ืขื˜ ื“ื•ืจืš ืึทื ืึทืœืึทื“ื–ืฉื™ ืžื™ื˜ ืึธืจื“ืขืจื™ื ื’ ืื™ืŸ ืึท ืจืขืกื˜ืึธืจืึทืŸ: ื™ื•ื–ืฉืึทื•ื•ืึทืœื™ ืื™ืจ ื ืึธืจ ืกื“ืจ ืึท ืฉื™ืกืœ ืื•ืŸ ื˜ืึธืŸ ื ื™ื˜ ื’ืขื‘ืŸ ื“ื™ื˜ื™ื™ืœื“ ื™ื ืกื˜ืจืึทืงืฉืึทื ื– ืฆื• ื“ื™ ืงืึธื›ืŸ.

ืื™ืŸ MongoDB ืื™ืจ ืœืขืจื ืขืŸ ื“ื™ ืงืึธื›ืŸ. ืคึฟืึทืจ ื‘ื™ื™ึทืฉืคึผื™ืœ, ืื™ืจ ื“ืึทืจืคึฟืŸ ืฆื• ืžืึทื›ืŸ ื–ื™ื›ืขืจ ืึทื– ื“ื™ ื“ืึทื˜ืŸ ืคึผืึทืกื™ื– ื“ื•ืจืš reduce ื•ื•ื™ ืคืจื™ ื•ื•ื™ ืžืขื’ืœืขืš ืื™ืŸ ื“ื™ ืจืขืจื  - ืœื™ื ื™ืข ื ื™ืฆืŸ $match ะธ $project, ืื•ืŸ ืกืึธืจื˜ื™ื ื’ ืึทืงืขืจื– ื‘ืœื•ื™ื– ื ืึธืš reduce, ืื•ืŸ ืึทื– ื“ื™ ื–ื•ื›ืŸ ื›ืึทืคึผืึทื ื– ืื™ืŸ ืคึผื•ื ืงื˜ ื“ื™ ืกื“ืจ ืื™ืจ ื•ื•ื™ืœืŸ. ืžื™ื˜ ืึท ืึธื ืคึฟืจืขื’ ืึธืคึผื˜ื™ืžื™ื–ืขืจ ื•ื•ืึธืก ื™ืœื™ืžืึทื ื™ื™ืฅ ื•ืžื ื™ื™ื˜ื™ืง ืึทืจื‘ืขื˜, ืึธืคึผื˜ื™ืžืึทืœืœื™ ืกื™ืงื•ื•ืึทื ืกื™ื– ืกื˜ืขืคึผืก ืื•ืŸ ืกืึทืœืขืงืฅ ืคืึทืจื‘ื™ื ื“ืŸ ื˜ื™ื™ืคึผืก, ืื™ืจ ืงืขื ืขืŸ ืฆืขืœืึธื–ืŸ. ืžื™ื˜ MongoDB, ืื™ืจ ื”ืึธื‘ืŸ ืžืขืจ ืงืึธื ื˜ืจืึธืœ ืื•ื™ืฃ ื“ื™ ืคึผืจื™ื™ึทื– ืคื•ืŸ ืงืึทื ื•ื•ื™ื ื™ืึทื ืก.

ืžื›ืฉื™ืจื™ื ื•ื•ื™ ืกื˜ื•ื“ื™ืึธ 3 ื˜ ื•ื•ืขื˜ ืคืึทืจืคึผืึธืฉืขื˜ืขืจืŸ ื“ื™ ืงืึทื ืกื˜ืจืึทืงืฉืึทืŸ ืคื•ืŸ ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ืงื•ื•ื™ืจื™ื– ืื™ืŸ ืžืึธื ื’ืึธื“ื‘. ื“ื™ ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ืขื“ื™ื˜ืึธืจ ืฉื˜ืจื™ืš ืึทืœืึทื•ื– ืื™ืจ ืฆื• ืฆื•ืœื™ื™ื’ืŸ ืจืขืจื  - ืœื™ื ื™ืข ืกื˜ื™ื™ื˜ืžืึทื ืฅ ืื™ื™ืŸ ื‘ื™ื ืข ืื™ืŸ ืึท ืฆื™ื™ื˜, ืื•ืŸ ื“ื•ืจื›ืงื•ืงืŸ ืึทืจื™ื™ึทื ืฉืจื™ื™ึทื‘ ืื•ืŸ ืจืขื–ื•ืœื˜ืึทื˜ ื“ืึทื˜ืŸ ืื™ืŸ ื™ืขื“ืขืจ ื‘ื™ื ืข ืฆื• ืคืึทืจืคึผืึธืฉืขื˜ืขืจืŸ ื“ื™ื‘ืึทื’ื™ื ื’.

ื ื™ืฆืŸ ืงื•ื•ื™ืง ืจืขืงืึธืจื“ื™ื ื’

ืงื™ื™ื ืžืึธืœ ืฉื˜ืขืœืŸ MongoDB ืฉืจื™ื™ึทื‘ืŸ ืึธืคึผืฆื™ืขืก ืฆื• ื”ืึธื‘ืŸ ื”ื•ื™ืš ื’ื™ื›ืงื™ื™ึทื˜ ืึธื‘ืขืจ ื ื™ื“ืขืจื™ืง ืจื™ืœื™ื™ืึทื‘ื™ืœืึทื˜ื™. ื“ืขื ืžืึธื“ืข "ื˜ืขืงืข-ืื•ืŸ-ืคืึทืจื’ืขืกืŸ" ืกื™ืžื– ืฉื ืขืœ ื•ื•ื™ื™ึทืœ ื“ื™ ื‘ืึทืคึฟืขืœ ืื™ื– ืื•ืžื’ืขืงืขืจื˜ ืื™ื™ื“ืขืจ ื“ื™ ืฉืจื™ื™ึทื‘ืŸ ืึทืงืขืจื–. ืื•ื™ื‘ ื“ื™ ืกื™ืกื˜ืขื ืงืจืึทืฉื™ื– ืื™ื™ื“ืขืจ ื“ื™ ื“ืึทื˜ืŸ ื–ืขื ืขืŸ ื’ืขืฉืจื™ื‘ืŸ ืฆื• ื“ื™ืกืง, ืขืก ื•ื•ืขื˜ ื–ื™ื™ืŸ ืคืึทืจืคืึทืœืŸ ืื•ืŸ ืขื ื“ื™ืงืŸ ืื™ืŸ ืึท ืกืชื™ืจื” ืฉื˜ืึทื˜. ืฆื•ืž ื’ืœื™ืง, 64-ื‘ื™ืกืœ MongoDB ื”ืื˜ ืœืึธื’ื™ื ื’ ืขื ื™ื™ื‘ืึทืœื“.

ื“ื™ MMAPv1 ืื•ืŸ WiredTiger ืกื˜ืึธืจื™ื“ื–ืฉ ืขื ื“ื–ืฉืึทื ื– ื ื•ืฆืŸ ืœืึธื’ื™ื ื’ ืฆื• ืคืึทืจืžื™ื™ึทื“ืŸ ื“ืขื, ื›ืึธื˜ืฉ WiredTiger ืงืขื ืขืŸ ืฆื•ืจื™ืงืงืจื™ื’ืŸ ืฆื• ื“ื™ ืœืขืฆื˜ืข ืงืึธื ืกื™ืกื˜ืขื ื˜ ืงืึธื ื˜ืจืึธืœ ืคื•ื ื˜, ืื•ื™ื‘ ืœืึธื’ื™ื ื’ ืื™ื– ืคืึทืจืงืจื™ืคึผืœื˜.

ื“ื–ืฉืึธื•ืจื ืึทืœื™ื ื’ ื™ื ืฉื•ืจื– ืึทื– ื“ื™ ื“ืึทื˜ืึทื‘ื™ื™ืก ืื™ื– ืื™ืŸ ืึท ืงืึธื ืกื™ืกื˜ืขื ื˜ ืฉื˜ืึทื˜ ื ืึธืš ืึธืคึผื–ื•ืš ืื•ืŸ ืจื™ื˜ื™ื™ื ื– ืึทืœืข ื“ืึทื˜ืŸ ื‘ื™ื– ืขืก ืื™ื– ื’ืขืฉืจื™ื‘ืŸ ืฆื• ื“ืขื ื–ืฉื•ืจื ืึทืœ. ื“ื™ ืึธืคื˜ืงื™ื™ึทื˜ ืคื•ืŸ ืจืขืงืึธืจื“ื™ื ื’ืก ืื™ื– ืงืึทื ืคื™ื’ื™ืขืจื“ ืžื™ื˜ ื“ืขื ืคึผืึทืจืึทืžืขื˜ืขืจ commitIntervalMs.

ืฆื• ื–ื™ื™ืŸ ื–ื™ื›ืขืจ ืคื•ืŸ ื“ื™ ืื™ื™ื ืกืŸ, ืžืึทื›ืŸ ื–ื™ื›ืขืจ ืึทื– ืœืึธื’ื™ื ื’ ืื™ื– ืขื ื™ื™ื‘ืึทืœื“ ืื™ืŸ ื“ื™ ืงืึทื ืคื™ื’ื™ืขืจื™ื™ืฉืึทืŸ ื˜ืขืงืข (storage.journal.enabled), ืื•ืŸ ื“ื™ ืึธืคื˜ืงื™ื™ึทื˜ ืคื•ืŸ ืจืขืงืึธืจื“ื™ื ื’ืก ืงืึธืจืึทืกืคึผืึทื ื“ื– ืฆื• ื“ื™ ืกื•ืžืข ืคื•ืŸ โ€‹โ€‹ืื™ื ืคึฟืึธืจืžืึทืฆื™ืข ืึทื– ืื™ืจ ืงืขื ืขืŸ ืคืึทืจื’ื™ื ืขื  ื–ื™ืš ืฆื• ืคืึทืจืœื™ืจืŸ.

ืกืึธืจื˜ื™ื ื’ ืึธืŸ ืื™ื ื“ืขืงืก

ื•ื•ืขืŸ ืื™ืจ ื–ื•ื›ื˜ ืื•ืŸ ืึทื’ื’ืจืขื’ื™ืจืŸ, ืขืก ืื™ื– ืึธืคื˜ ืึท ื ื•ื™ื˜ ืฆื• ืกืึธืจื˜ ื“ืึทื˜ืŸ. ืœืึธืžื™ืจ ื”ืึธืคืŸ ืึทื– ื“ืึธืก ืื™ื– ื“ื•ืจื›ื’ืขืงืึธื›ื˜ ืื™ืŸ ืื™ื™ื ืขืจ ืคื•ืŸ ื“ื™ ืœืขืฆื˜ ืกื˜ืึทื’ืขืก, ื ืึธืš ืคื™ืœื˜ืขืจื™ื ื’ ื“ื™ ืจืขื–ื•ืœื˜ืึทื˜ ืื™ืŸ ืกื“ืจ ืฆื• ืจืขื“ื•ืฆื™ืจืŸ ื“ื™ ืกื•ืžืข ืคื•ืŸ โ€‹โ€‹โ€‹โ€‹ื“ืึทื˜ืŸ ืกืึธืจื˜ื™ืจื˜. ืื•ืŸ ืืคื™ืœื• ืื™ืŸ ื“ืขื ืคืึทืœ, ืคึฟืึทืจ ืกืึธืจื˜ื™ื ื’ ืื™ืจ ื•ื•ืขื˜ ื“ืึทืจืคึฟืŸ ืื™ื ื“ืขืงืก. ืื™ืจ ืงืขื ืขืŸ ื ื•ืฆืŸ ืึท ืื™ื™ืŸ ืึธื“ืขืจ ืงืึทืžืคึผืึทื•ื ื“ ืื™ื ื“ืขืงืก.

ืื•ื™ื‘ ืขืก ืื™ื– ืงื™ื™ืŸ ืคึผืึทืกื™ืง ืื™ื ื“ืขืงืก, MongoDB ื•ื•ืขื˜ ื˜ืึธืŸ ืึธืŸ ืขืก. ืขืก ืื™ื– ืึท ื–ื™ืงืึธืจืŸ ืœื™ืžื™ื˜ ืคื•ืŸ 32 ืžื‘ ืื•ื™ืฃ ื“ื™ ื’ืึทื ืฅ ื’ืจื™ื™ืก ืคื•ืŸ ืึทืœืข ื“ืึธืงื•ืžืขื ื˜ืŸ ืื™ืŸ ืกืึธืจื˜ื™ื ื’ ืึทืคึผืขืจื™ื™ืฉืึทื ื–, ืื•ืŸ ืื•ื™ื‘ MongoDB ืจื™ื˜ืฉืึทื– ื“ืขื ืฉื™ืขื•ืจ, ืขืก ื•ื•ืขื˜ ื•ื•ืึทืจืคืŸ ืึท ื˜ืขื•ืช ืึธื“ืขืจ ืฆื•ืจื™ืงืงื•ืžืขืŸ ืœื™ื™ื“ื™ืง ืจืขืงืึธืจื“ืกืขื˜.

ื–ื•ื›ืŸ ืึธืŸ ืื™ื ื“ืขืงืก ืฉื˜ื™ืฆืŸ

ื–ื•ื›ืŸ ืงื•ื•ื™ืจื™ื– ื“ื•ืจื›ืคื™ืจืŸ ืึท ืคื•ื ืงืฆื™ืข ืขื ืœืขืš ืฆื• ื“ื™ JOIN ืึธืคึผืขืจืึทืฆื™ืข ืื™ืŸ SQL. ืฆื• ืึทืจื‘ืขื˜ืŸ ื‘ืขืกื˜ืขืจ, ื–ื™ื™ ื“ืึทืจืคึฟืŸ ื“ื™ ืื™ื ื“ืขืงืก ืคื•ืŸ ื“ื™ ื•ื•ืขืจื˜ ืคื•ืŸ ื“ื™ ืฉืœื™ืกืœ ื’ืขื ื™ืฆื˜ ื•ื•ื™ ื“ื™ ืคืจืขืžื“ ืฉืœื™ืกืœ. ื“ืึธืก ืื™ื– ื ื™ืฉื˜ ืงืœืึธืจ ื•ื•ื™ ื“ืขืจ ื˜ืึธื’ ื•ื•ื™ื™ึทืœ ื“ื™ ื ื•ืฆืŸ ืื™ื– ื ื™ืฉื˜ ืฉืคื™ื’ืœื˜ ืื™ืŸ explain(). ืึทื–ืึท ื™ื ื“ืขืงืกื™ื– ื–ืขื ืขืŸ ืื™ืŸ ืึทื“ื™ืฉืึทืŸ ืฆื• ื“ื™ ืื™ื ื“ืขืงืก ื’ืขืฉืจื™ื‘ืŸ ืื™ืŸ explain(), ื•ื•ืึธืก ืื™ืŸ ืงืขืจ ืื™ื– ื’ืขื ื™ืฆื˜ ื“ื•ืจืš ืจืขืจื  - ืœื™ื ื™ืข ืึธืคึผืขืจื™ื™ื˜ืขืจื– $match ะธ $sort, ื•ื•ืขืŸ ื–ื™ื™ ื˜ืจืขืคืŸ ืื™ืŸ ื“ื™ ืึธื ื”ื™ื™ื‘ ืคื•ืŸ ื“ื™ ืจืขืจื  - ืœื™ื ื™ืข. ื™ื ื“ืขืงืกื™ื– ืงืขื ืขืŸ ืื™ืฆื˜ ื“ืขืงืŸ ืงื™ื™ืŸ ื‘ื™ื ืข ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ ืจืขืจื  - ืœื™ื ื™ืข.

ืึธืคึผื˜ื™ื ื’ ืื•ื™ืก ืคื•ืŸ ื ื™ืฆืŸ ืžื•ืœื˜ื™-ื“ืขืจื”ื™ื™ึทื ื˜ื™ืงื•ื ื’ืขืŸ

ืื•ืคึฟืŸ db.collection.update() ื’ืขื•ื•ื™ื™ื ื˜ ืฆื• ื˜ื•ื™ืฉืŸ ื˜ื™ื™ืœ ืคื•ืŸ ืึท ื™ื’ื–ื™ืกื˜ื™ื ื’ ื“ืึธืงื•ืžืขื ื˜ ืึธื“ืขืจ ื“ื™ ื’ืื ืฆืข ื“ืึธืงื•ืžืขื ื˜, ืึทืจื•ื™ืฃ ืฆื• ืึท ื’ืึทื ืฅ ืคืึทืจื‘ื™ื™ึทื˜, ื“ื™ืคึผืขื ื“ื™ื ื’ ืื•ื™ืฃ ื“ื™ ืคึผืึทืจืึทืžืขื˜ืขืจ ืื™ืจ ืกืคึผืขืฆื™ืคื™ืฆื™ืจืŸ update. ื•ื•ืึธืก ืื™ื– ื ื™ืฉื˜ ืึทื–ื•ื™ ืงืœืึธืจ ื•ื•ื™ ื“ืขืจ ื˜ืึธื’ ืื™ื– ืึทื– ืขืก ื•ื•ืขื˜ ื ื™ืฉื˜ ืคึผืจืึธืฆืขืก ืึทืœืข ื“ืึธืงื•ืžืขื ื˜ืŸ ืื™ืŸ ื“ืขืจ ื–ืึทืžืœื•ื ื’ ืกื™ื™ึทื“ืŸ ืื™ืจ ืฉื˜ืขืœืŸ ื“ื™ ืึธืคึผืฆื™ืข multi ืฆื• ื“ืขืจื”ื™ื™ึทื ื˜ื™ืงืŸ ืึทืœืข ื“ืึธืงื•ืžืขื ื˜ืŸ ื•ื•ืึธืก ื˜ืจืขืคืŸ ื“ื™ ื‘ืขื˜ืŸ ืงืจื™ื™ื˜ื™ืจื™ืึท.

ื“ื• ื–ืืœืกื˜ ื ื™ืฉื˜ ืคืึทืจื’ืขืกืŸ ื“ื™ ื•ื•ื™ื›ื˜ื™ืงื™ื™ื˜ ืคื•ืŸ ื“ื™ ืกื“ืจ ืคื•ืŸ ื“ื™ ืฉืœื™ืกืœืขืŸ ืื™ืŸ ืึท ื›ืึทืฉ ื˜ื™ืฉ

ืื™ืŸ JSON, ืึท ื›ื™ื™ืคืขืฅ ื‘ืืฉื˜ื™ื™ื˜ ืคื•ืŸ ืึทืŸ ืึทื ืึธืจื“ืขืจื“ ื–ืึทืžืœื•ื ื’ ืคื•ืŸ ื’ืจื™ื™ืก ื ื•ืœ ืึธื“ืขืจ ืžืขืจ ื ืึธืžืขืŸ / ื•ื•ืขืจื˜ ืคึผืขืจื–, ื•ื•ื• ื ืึธืžืขืŸ ืื™ื– ืึท ืฉื˜ืจื™ืงืœ ืื•ืŸ ื•ื•ืขืจื˜ ืื™ื– ืึท ืฉื˜ืจื™ืงืœ, ื ื•ืžืขืจ, ื‘ื•ืœืึทืŸ, ื ืึทืœ, ื›ื™ื™ืคืขืฅ ืึธื“ืขืจ ืžืขื ื’ืข.

ืฆื•ื ื‘ืึทื“ื•ื™ืขืจืŸ, BSON ืœื™ื™ื’ื˜ ืึท ืคึผืœืึทืฅ ืคื•ืŸ ื˜ืจืึธืคึผ ืื•ื™ืฃ ืกื“ืจ ื•ื•ืขืŸ ืื™ืจ ื–ื•ื›ื˜. ืื™ืŸ MongoDB, ื“ื™ ืกื“ืจ ืคื•ืŸ ืฉืœื™ืกืœืขืŸ ืื™ืŸ ื“ื™ ื’ืขื‘ื•ื™ื˜-ืื™ืŸ ืึทื‘ื“ื–ืฉืขืงืฅ ืขื ื™ื ื™ื, ื™.ืข. { firstname: "Phil", surname: "factor" } - ื“ืึธืก ืื™ื– ื ื™ืฉื˜ ื“ื™ ื–ืขืœื‘ืข ื•ื•ื™ { { surname: "factor", firstname: "Phil" }. ื“ืึธืก ืื™ื–, ืื™ืจ ืžื•ื–ืŸ ืงืจืึธื ื“ื™ ืกื“ืจ ืคื•ืŸ ื ืึธืžืขืŸ / ื•ื•ืขืจื˜ ืคึผืขืจื– ืื™ืŸ ื“ื™ื™ืŸ ื“ืึธืงื•ืžืขื ื˜ืŸ ืื•ื™ื‘ ืื™ืจ ื•ื•ื™ืœืŸ ืฆื• ื–ื™ื™ืŸ ื–ื™ื›ืขืจ ืฆื• ื’ืขืคึฟื™ื ืขืŸ ื–ื™ื™.

ื“ื• ื–ืืœืกื˜ ื ื™ืฉื˜ ื–ื™ื™ืŸ ืฆืขืžื™ืฉื˜ "ื ื•ืœ" ะธ "ื•ื ื“ืขืคื™ื ื™ืจื˜"

ื•ื•ืขืจื˜ "ื•ื ื“ืขืคื™ื ื™ืจื˜" ืื™ื– ืงื™ื™ื ืžืึธืœ ื’ื™ืœื˜ื™ืง ืื™ืŸ JSON, ืœื•ื™ื˜ ืฆื• ื‘ืึทืึทืžื˜ืขืจ ื ืึธืจืžืึทืœ JSON (ECMA-404 ืึธืคึผื˜ื™ื™ืœื•ื ื’ 5), ื›ืึธื˜ืฉ ืขืก ืื™ื– ื’ืขื ื™ืฆื˜ ืื™ืŸ ื“ื–ืฉืึทื•ื•ืึทืกืงืจื™ืคึผื˜. ื“ืขืจืฆื•, ืคึฟืึทืจ BSON ืขืก ืื™ื– ื“ื™ืคึผืจื™ืฉื™ื™ื™ื˜ื™ื“ ืื•ืŸ ืงืึธื ื•ื•ืขืจื˜ืขื“ ืฆื• $null, ื•ื•ืึธืก ืื™ื– ื ื™ื˜ ืฉื˜ืขื ื“ื™ืง ืึท ื’ื•ื˜ ืœื™ื™ื–ื•ื ื’. ื•ื™ืกืžื™ื™ึทื“ืŸ ื ื™ืฆืŸ "ื•ื ื“ืขืคื™ื ื™ืจื˜" ืื™ืŸ MongoDB.

ื ื•ืฆืŸ $limit() ืึธืŸ $sort()

ื’ืึทื ืฅ ืึธืคื˜ ื•ื•ืขืŸ ืื™ืจ ืึทื ื˜ื•ื•ื™ืงืœืขืŸ ืื™ืŸ MongoDB, ืขืก ืื™ื– ื ื•ืฆื™ืง ืฆื• ื–ืขืŸ ืึท ืžื•ืกื˜ืขืจ ืคื•ืŸ ื“ืขืจ ืจืขื–ื•ืœื˜ืึทื˜ ื•ื•ืึธืก ื•ื•ืขื˜ ื–ื™ื™ืŸ ืื•ืžื’ืขืงืขืจื˜ ืคึฟื•ืŸ ืึท ืึธื ืคึฟืจืขื’ ืึธื“ืขืจ ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธืŸ. ืคึฟืึทืจ ื“ืขื ืึทืจื‘ืขื˜ ืื™ืจ ื•ื•ืขื˜ ื“ืึทืจืคึฟืŸ $limit(), ืึธื‘ืขืจ ืขืก ื–ืึธืœ ืงื™ื™ื ืžืึธืœ ื–ื™ื™ืŸ ืื™ืŸ ื“ื™ ืœืขืฆื˜ ืงืึธื“ ืื•ื™ื‘ ืื™ืจ ื ื•ืฆืŸ ืขืก ืคืจื™ืขืจ $sort. ื“ืขืจ ืžืขื›ืึทื ื™ืงืขืจ ืื™ื– ื ื™ื™ื˜ื™ืง ื•ื•ื™ื™ึทืœ ืึทื ื“ืขืจืฉ ืื™ืจ ืงืขื ืขืŸ ื ื™ืฉื˜ ื’ืึทืจืึทื ื˜ื™ืจืŸ ื“ื™ ืกื“ืจ ืคื•ืŸ ื“ืขืจ ืจืขื–ื•ืœื˜ืึทื˜, ืื•ืŸ ืื™ืจ ื•ื•ืขื˜ ื ื™ืฉื˜ ืงืขื ืขืŸ ืฆื• ืจื™ืœื™ื™ืึทื‘ืœื™ ื–ืขืŸ ื“ื™ ื“ืึทื˜ืŸ. ืื™ืŸ ื“ื™ ืฉืคึผื™ืฅ ืคื•ืŸ ื“ื™ ืจืขื–ื•ืœื˜ืึทื˜ ืื™ืจ ื•ื•ืขื˜ ื‘ืึทืงื•ืžืขืŸ ืคืึทืจืฉื™ื“ืขื ืข ืื™ื™ื ืกืŸ ื“ื™ืคึผืขื ื“ื™ื ื’ ืื•ื™ืฃ ื“ื™ ืกืึธืจื˜ื™ื ื’. ืฆื• ืึทืจื‘ืขื˜ืŸ ืจื™ืœื™ื™ืึทื‘ืœื™, ืคึฟืจืื’ืŸ ืื•ืŸ ืึทื’ื’ืจืขื’ืึทื˜ื™ืึธื ืก ืžื•ื–ืŸ ื–ื™ื™ืŸ ื“ื™ื˜ืขืจืžืึทื ื™ืกื˜ื™ืง, ื“ืึธืก ืื™ื–, ืคึผืจืึธื“ื•ืฆื™ืจืŸ ื“ื™ ื–ืขืœื‘ืข ืจืขื–ื•ืœื˜ืึทื˜ืŸ ื™ืขื“ืขืจ ืžืึธืœ ื–ื™ื™ ื–ืขื ืขืŸ ืขืงืกืึทืงื™ื•ื˜ืึทื“. ืงืึธื“ ื•ื•ืึธืก ื›ึผื•ืœืœ $limit(), ืื‘ืขืจ ื ื™ื™ืŸ $sort, ื•ื•ืขื˜ ื ื™ืฉื˜ ื–ื™ื™ืŸ ื“ื™ื˜ืขืจืžืึทื ื™ืกื˜ื™ืง ืื•ืŸ ืงืขืŸ ื“ืขืจื ืึธืš ืคืึทืจืฉืึทืคืŸ ืขืจืจืึธืจืก ื•ื•ืึธืก ื•ื•ืขื˜ ื–ื™ื™ืŸ ืฉื•ื•ืขืจ ืฆื• ืฉืคึผื•ืจ ืึทืจืึธืคึผ.

ืกืึธืฃ

ื“ืขืจ ื‘ืœื•ื™ื– ื•ื•ืขื’ ืฆื• ื–ื™ื™ืŸ ื“ื™ืกืึทืคึผื•ื™ื ื™ื“ ืžื™ื˜ MongoDB ืื™ื– ืฆื• ืคืึทืจื’ืœื™ื™ึทื›ืŸ ืขืก ื’ืœื™ื™ึทืš ืฆื• ืืŸ ืื ื“ืขืจ ื˜ื™ืคึผ ืคื•ืŸ ื“ืึทื˜ืึทื‘ื™ื™ืก, ืึทื–ืึท ื•ื•ื™ ืึท DBMS, ืึธื“ืขืจ ืฆื• ื ื•ืฆืŸ ืขืก ื‘ืื–ื™ืจื˜ ืื•ื™ืฃ ื–ื™ื›ืขืจ ืขืงืกืคึผืขืงื˜ื™ื™ืฉืึทื ื–. ืขืก ืื™ื– ื•ื•ื™ ืฆื• ืคืึทืจื’ืœื™ื™ึทื›ืŸ ืึท ืžืึทืจืึทื ืฅ ืฆื• ืึท ื’ืึธืคึผืœ. ื“ืึทื˜ืึทื‘ืึทืกืข ืกื™ืกื˜ืขืžืขืŸ ื“ื™ื ืขืŸ ืกืคึผืขืฆื™ืคื™ืฉ ืฆื•ื•ืขืงืŸ. ืขืก ืื™ื– ื‘ืขืกื˜ืขืจ ืฆื• ืคืฉื•ื˜ ืคึฟืึทืจืฉื˜ื™ื™ืŸ ืื•ืŸ ืึธืคึผืฉืึทืฆืŸ ื“ื™ ื“ื™ืคืขืจืึทื ืกื™ื– ืคึฟืึทืจ ื–ื™ืš. ืขืก ื•ื•ืึธืœื˜ ื–ื™ื™ืŸ ืึท ืฉืึธื“ ืฆื• ื“ืจื•ืงืŸ ื“ื™ MongoDB ื“ืขื•ื•ืขืœืึธืคึผืขืจืก ืื™ื‘ืขืจ ืึท ื“ืจืš ื•ื•ืึธืก ื’ืขืฆื•ื•ื•ื ื’ืขืŸ ื–ื™ื™ ืึทืจืึธืคึผ ื“ื™ DBMS ื“ืจืš. ืื™ืš ื•ื•ื™ืœืŸ ืฆื• ื–ืขืŸ ื ื™ื™ึทืข ืื•ืŸ ื˜ืฉื™ืงืึทื•ื•ืข ื•ื•ืขื’ืŸ ืฆื• ืกืึธืœื•ื•ืข ืึทืœื˜ ืคึผืจืึธื‘ืœืขืžืก, ืึทื–ืึท ื•ื•ื™ ื™ื ืฉื•ืจื™ื ื’ ื“ืึทื˜ืŸ ืึธืจื ื˜ืœืขื›ืงื™ื™ึทื˜ ืื•ืŸ ืงืจื™ื™ื™ื˜ื™ื ื’ ื“ืึทื˜ืŸ ืกื™ืกื˜ืขืžืขืŸ ื•ื•ืึธืก ื–ืขื ืขืŸ ืงืขื’ื ืฉื˜ืขืœื™ืง ืฆื• ื“ื•ืจื›ืคืึทืœ ืื•ืŸ ื‘ื™ื™ื–ืข ืื ืคืืœืŸ.

MongoDB ืก ื”ืงื“ืžื” ืคื•ืŸ ืึทืกื™ื“ ื˜ืจืึทื ืกืึทืงื˜ื™ืึธื ืึทืœื™ื˜ื™ ืื™ืŸ ื•ื•ืขืจืกื™ืข 4.0 ืื™ื– ืึท ื’ื•ื˜ ื‘ื™ื™ืฉืคึผื™ืœ ืคื•ืŸ ื™ื ื˜ืจืึธื•ื“ื•ืกื™ื ื’ ื•ื•ื™ื›ื˜ื™ืง ื™ืžืคึผืจื•ื•ื•ืžืึทื ืฅ ืื™ืŸ ืึท ื™ื ืึทื•ื•ื™ื™ื˜ื™ื•ื• ื•ื•ืขื’. ืžื•ืœื˜ื™-ื“ืึธืงื•ืžืขื ื˜ ืื•ืŸ ืžื•ืœื˜ื™-ืกื˜ื™ื™ื˜ืžืึทื ื˜ ื˜ืจืึทื ื–ืึทืงืฉืึทื ื– ื–ืขื ืขืŸ ืื™ืฆื˜ ืึทื˜ืึธืžื™ืฉืข. ืขืก ืื™ื– ืื•ื™ืš ืžืขื’ืœืขืš ืฆื• ืกื˜ืจื•ื™ืขืจืŸ ื“ื™ ืฆื™ื™ื˜ ืคืืจืœืื ื’ื˜ ืฆื• ืงืจื™ื’ืŸ ืœืึทืงืก ืื•ืŸ ืคืึทืจืขื ื“ื™ืงืŸ ืกื˜ืึทืง ื˜ืจืึทื ื–ืึทืงืฉืึทื ื–, ื•ื•ื™ ื’ืขื–ื•ื ื˜ ื•ื•ื™ ืฆื• ื˜ื•ื™ืฉืŸ ื“ื™ ืืคื’ืขื–ื•ื ื“ืขืจื˜ืงื™ื™ื˜ ืžื“ืจื’ื”.

14 ื˜ื™ื ื’ื– ืื™ืš ื•ื•ื™ื ื˜ืฉืŸ ืื™ืš ื’ืขื•ื•ืื•ืกื˜ ืื™ื™ื“ืขืจ ืื™ืš ืึธื ื”ื™ื™ื‘ืŸ ืžื™ื˜ MongoDB

ืœื™ื™ืขื ืขืŸ ืžืขืจ:

ืžืงื•ืจ: www.habr.com

ืœื™ื™ื’ืŸ ืึท ื‘ืึทืžืขืจืงื•ื ื’