ããã¥ã¡ã³ãæå DBMS MongoDB 5.0 ã®ãªãªãŒã¹ãçºè¡šãããŸãããããã¯ãããŒ/å€åœ¢åŒã§ããŒã¿ãæäœããé«éã§ã¹ã±ãŒã©ãã«ãªã·ã¹ãã ãšãæ©èœçã§ã¯ãšãªã®äœæã容æãªãªã¬ãŒã·ã§ãã« DBMS ã®éã®ããããå ããŸãã MongoDB ã³ãŒã㯠C++ ã§æžãããŠãããAGPLv3 ã©ã€ã»ã³ã¹ã«åºã¥ã SSPL ã©ã€ã»ã³ã¹ã«åºã¥ããŠé åžãããŠããŸãããã¢ããªã±ãŒã·ã§ã³ ã³ãŒãèªäœã ãã§ãªããœãŒã¹ã SSPL ã©ã€ã»ã³ã¹ã«åºã¥ããŠé åžãããšããå·®å¥çãªèŠä»¶ãå«ãŸããŠããããããªãŒãã³ã§ã¯ãããŸãããã¯ã©ãŠã ãµãŒãã¹ã®æäŸã«é¢äžãããã¹ãŠã®ã³ã³ããŒãã³ãã®ã³ãŒãã
MongoDB ã¯ãJSON ã®ãããªåœ¢åŒã§ã®ããã¥ã¡ã³ãã®ä¿åããµããŒãããã¯ãšãªãçæããããã®ããªãæè»ãªèšèªãåããä¿åãããããŸããŸãªå±æ§ã®ã€ã³ããã¯ã¹ãäœæã§ãã倧ããªãã€ã㪠ãªããžã§ã¯ãã®ã¹ãã¬ãŒãžãå¹ççã«æäŸããããŒã¿ããŒã¹ã«ããŒã¿ãå€æŽããã³è¿œå ããããã®æäœã®ãã°ããµããŒãããŸãã Map/Reduce ãã©ãã€ã ã«åŸã£ãŠåäœããã¬ããªã±ãŒã·ã§ã³ãšãã©ãŒã«ã ãã¬ã©ã³ãæ§æã®æ§ç¯ããµããŒãããŸãã
MongoDB ã«ã¯ãã¬ããªã±ãŒã·ã§ã³ãšçµã¿åãããã·ã£ãŒãã£ã³ã° ããŒã« (ç¹å®ã®ããŒã«åºã¥ããŠãµãŒããŒéã§ããŒã¿ ã»ãããåæ£ãã) ãçµã¿èŸŒãŸããŠãããåäžé害ç¹ã®ãªã (ããŒãã®é害ãçºçãã) æ°Žå¹³æ¹åã«ã¹ã±ãŒã©ãã«ãªã¹ãã¬ãŒãž ã¯ã©ã¹ã¿ãŒãæ§ç¯ã§ããŸããããŒã¿ããŒã¹ã®åäœã«ã¯åœ±é¿ããŸããïŒãèªåãã§ã€ã«ãªãŒããŒãããã³é害ãçºçããããŒãããã®è² è·è»¢éã ã¯ã©ã¹ã¿ãŒã®æ¡åŒµãŸã㯠XNUMX ã€ã®ãµãŒããŒããã¯ã©ã¹ã¿ãŒãžã®å€æã¯ãããŒã¿ããŒã¹ãåæ¢ããããšãªããæ°ãããã·ã³ãè¿œå ããã ãã§å®è¡ãããŸãã
æ°ãããªãªãŒã¹ã®ç¹åŸŽ:
- æç³»åã®åœ¢åŒã§ããŒã¿ã®ã³ã¬ã¯ã·ã§ã³ (æç³»åã³ã¬ã¯ã·ã§ã³) ãè¿œå ããŸãããããã¯ãç¹å®ã®éé (æéãšããã®æéã«å¯Ÿå¿ããäžé£ã®å€) ã§èšé²ããããã©ã¡ãŒã¿ãŒå€ã®ã¹ã©ã€ã¹ãä¿åããããã«æé©åãããŠããŸãããã®ãããªããŒã¿ãä¿åããå¿
èŠæ§ã¯ãç£èŠã·ã¹ãã ãéèãã©ãããã©ãŒã ãã»ã³ãµãŒã®ç¶æ
ãããŒãªã³ã°ããã·ã¹ãã ã§çºçããŸããæç³»åããŒã¿ã®æäœã¯éåžžã®ããã¥ã¡ã³ã ã³ã¬ã¯ã·ã§ã³ãšåæ§ã«å®è¡ãããŸãããæç³»åããŒã¿ã®ã€ã³ããã¯ã¹ãšä¿åæ¹æ³ã¯æéåç
§ãèæ
®ããŠæé©åãããŠããããããã£ã¹ã¯å®¹éã®æ¶è²»ã倧å¹
ã«åæžãããã¯ãšãªå®è¡æã®é
延ã軜æžãããåææ©èœãæå¹ã«ãªããŸãããªã¢ã«ã¿ã€ã ã®ããŒã¿ã
MongoDB ã¯ããã®ãããªã³ã¬ã¯ã·ã§ã³ããå éšã³ã¬ã¯ã·ã§ã³ã«åºã¥ããŠæ§ç¯ãããæžã蟌ã¿å¯èœãªéå®äœåãã¥ãŒãšããŠæ±ããæ¿å ¥ããããšãæç³»åããŒã¿ãæé©åãããã¹ãã¬ãŒãžåœ¢åŒã«èªåçã«ã°ã«ãŒãåããŸãããã®å ŽåãæéããŒã¹ã®åã¬ã³ãŒãã¯ãèŠæ±ããããšãã«å¥åã®ããã¥ã¡ã³ããšããŠæ±ãããŸããããŒã¿ã¯æéã«ãã£ãŠèªåçã«äžŠã¹æ¿ããããã€ã³ããã¯ã¹ãä»ããããŸã (æ瀺çã«æéã€ã³ããã¯ã¹ãäœæããå¿ èŠã¯ãããŸãã)ã
- ã³ã¬ã¯ã·ã§ã³å ã®ç¹å®ã®ããã¥ã¡ã³ã ã»ããã«å¯ŸããŠã¢ã¯ã·ã§ã³ãå®è¡ã§ããããã«ãããŠã£ã³ã㊠ãªãã¬ãŒã¿ãŒ (åæé¢æ°) ã®ãµããŒããè¿œå ãããŸãããéèšé¢æ°ãšã¯ç°ãªãããŠã£ã³ããŠé¢æ°ã¯ã°ã«ãŒãåãããã»ãããæããããã®ã§ã¯ãªããçµæã»ããããã® 1 ã€ä»¥äžã®ããã¥ã¡ã³ããå«ãããŠã£ã³ããŠãã®å 容ã«åºã¥ããŠéèšããŸããããã¥ã¡ã³ãã®ãµãã»ãããæäœããããã«ãæ°ãã $setWindowFields ã¹ããŒãžãææ¡ãããŠããŸããããã䜿çšãããšãããšãã°ãã³ã¬ã¯ã·ã§ã³å ã® 2 ã€ã®ããã¥ã¡ã³ãéã®éããç¹å®ãããã売äžã©ã³ãã³ã°ãèšç®ããããè€éãªæç³»åã§æ å ±ãåæãããã§ããŸãã
- API ããŒãžã§ã³ç®¡çã®ãµããŒããè¿œå ãããŸãããããã«ãããã¢ããªã±ãŒã·ã§ã³ãç¹å®ã® API ç¶æ ã«ãã€ã³ãããæ°ãã DBMS ãªãªãŒã¹ã«ç§»è¡ããéã«äžäœäºææ§ã®éåã«é¢é£ãããªã¹ã¯ãæé€ã§ããŸãã API ã®ããŒãžã§ã³ç®¡çã«ãããã¢ããªã±ãŒã·ã§ã³ã®ã©ã€ã ãµã€ã¯ã«ã DBMS ã®ã©ã€ã ãµã€ã¯ã«ããåé¢ãããéçºè 㯠DBMS ã®æ°ããããŒãžã§ã³ã«ç§»è¡ãããšãã§ã¯ãªããæ°ããæ©èœã䜿çšããå¿ èŠããããšãã«ã¢ããªã±ãŒã·ã§ã³ã«å€æŽãå ããããšãã§ããŸãã
- ã©ã€ã ãªã·ã£ãŒãã£ã³ã° ã¡ã«ããºã ã®ãµããŒããè¿œå ãããŸãããããã«ãããDBMS ãåæ¢ããã«ãã»ã°ã¡ã³ããŒã·ã§ã³ã«äœ¿çšãããã·ã£ãŒã ããŒããªã³ã¶ãã©ã€ã§å€æŽã§ããããã«ãªããŸãã
- ã¯ã©ã€ã¢ã³ãåŽã§ãã£ãŒã«ããæå·åããå¯èœæ§ãæ¡åŒµãããŸãã (ã¯ã©ã€ã¢ã³ãåŽãã£ãŒã«ã ã¬ãã«æå·å)ã DBMS ãåæ¢ããã«ç£æ»ãã£ã«ã¿ãŒãåæ§æããx509 蚌ææžãããŒããŒã·ã§ã³ã§ããããã«ãªããŸããã TLS 1.3 ã®æå·ã¹ã€ãŒãã®æ§æã®ãµããŒããè¿œå ãããŸããã
- æ°ããã³ãã³ã ã©ã€ã³ ã·ã§ã«ã§ãã MongoDB ã·ã§ã« (mongosh) ãææ¡ãããŠããŸããããã¯å¥ã®ãããžã§ã¯ããšããŠéçºãããŠãããNode.js ãã©ãããã©ãŒã ã䜿çšã㊠JavaScript ã§èšè¿°ãããApache 2.0 ã©ã€ã»ã³ã¹ã®äžã§é
åžãããŸãã MongoDB Shell ã䜿çšãããšãDBMS ãžã®æ¥ç¶ãèšå®ã®å€æŽãã¯ãšãªã®éä¿¡ãå¯èœã«ãªããŸããã¡ãœãããã³ãã³ããMQL åŒãå
¥åããããã®ã¹ããŒããªãªãŒãã³ã³ããªãŒããæ§æã®åŒ·èª¿è¡šç€ºãã³ã³ããã¹ã ãã«ãããšã©ãŒ ã¡ãã»ãŒãžã®è§£æãã¢ããªã³ã«ããæ©èœæ¡åŒµæ©èœããµããŒãããŸããå€ããmongoãCLI ã©ãããŒã¯éæšå¥šãšãªããå°æ¥ã®ãªãªãŒã¹ã§ã¯åé€ãããäºå®ã§ãã
- æ°ããæŒç®åãè¿œå ãããŸãã: $countã$dateAddã$dateDiffã$dateSubtractã$sampleRateã$randã
- $expr åŒå 㧠$eqã$ltã$lteã$gtãããã³ $gte æŒç®åã䜿çšãããšãã«ã€ã³ããã¯ã¹ã䜿çšãããããã«ããŸãã
- aggregateãfindãfindAndModifyãupdateãdelete ã³ãã³ããš db.collection.aggregate()ãdb.collection.findAndModify()ãdb.collection.update()ãããã³ db.collection.remove() ã¡ãœããããletãããµããŒãããããã«ãªããŸããã ããªãã·ã§ã³ã䜿çšããŠããªã¯ãšã¹ãæ¬æããå€æ°ãåé¢ããããšã§ã³ãã³ããèªã¿ãããããå€æ°ã®ãªã¹ããå®çŸ©ããŸãã
- FindãcountãdistinctãaggregateãmapReduceãlistCollectionsãlistIndexes ã®åæäœã¯ãããã¥ã¡ã³ã ã³ã¬ã¯ã·ã§ã³ã«å¯ŸããŠæä»ããã¯ãååŸããæäœã䞊è¡ããŠå®è¡ãããŠããå Žåã§ããããã¯ãããªããªããŸããã
- æ¿æ²»çã«äžæ£ç¢ºãªçšèªãåé€ããåãçµã¿ã®äžç°ãšããŠãisMaster ã³ãã³ããš db.isMaster() ã¡ãœããã®ååã hello ãš db.hello() ã«å€æŽãããŸããã
- ãªãªãŒã¹çªå·ä»ãã¹ããŒã ãå€æŽãããäºæž¬å¯èœãªãªãªãŒã¹ ã¹ã±ãžã¥ãŒã«ã«ç§»è¡ããŸããã幎㫠5.0 åãéèŠãªãªãªãŒã¹ (6.0ã7.0ã5.1) ãæäŸããã5.2 ãæããšã«æ°æ©èœãå«ãäžéãªãªãŒã¹ (5.3ã5.1.1ã5.1.2) ãæäŸãããå¿ èŠã«å¿ããŠããã°ä¿®æ£ãšè匱æ§ãå«ãä¿®æ£ã¢ããããŒã (5.1.3ã5.1) ãæäŸãããŸãã .5.2ã5.3ïŒãäžéãªãªãŒã¹ã§ã¯ã次ã®ã¡ãžã£ãŒ ãªãªãŒã¹ã«åããæ©èœãæ§ç¯ãããŸãã MongoDB 6.0ãXNUMXãããã³ XNUMX ã¯ãMongoDB XNUMX ã®ãªãªãŒã¹ã«åããæ°æ©èœãæäŸããŸãã
åºæïŒ ãªãŒãã³ããã.ru