{"id":6985,"date":"2015-03-16T08:12:43","date_gmt":"2015-03-16T12:12:43","guid":{"rendered":"http:\/\/bangla.salearningschool.com\/?p=6985"},"modified":"2015-03-16T09:02:42","modified_gmt":"2015-03-16T13:02:42","slug":"mongodb-projection","status":"publish","type":"post","link":"http:\/\/bangla.sitestree.com\/?p=6985","title":{"rendered":"MongoDB Projection"},"content":{"rendered":"

MongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8
\n\u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4<\/p>\n

MongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8
\nMongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8\u09c7\u09b0 \u0985\u09b0\u09cd\u09a5 \u09b9\u099a\u09cd\u099b\u09c7 \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b8\u0995\u09b2 \u09a4\u09a5\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u09a8\u09be \u0995\u09b0\u09c7 \u09ac\u09b0\u0982 \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09af\u09bc\u09cb\u099c\u09a8\u09c0\u09af\u09bc \u09a4\u09a5\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u0995\u09b0\u09be\u0964 \u09af\u09a6\u09bf \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09eb\u099f\u09bf \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0 \u09a5\u09be\u0995\u09c7 \u098f\u09ac\u0982 \u0986\u09aa\u09a8\u09be\u09b0 \u09e9\u099f\u09bf \u09a6\u09c7\u0996\u09be\u09a8\u09cb\u09b0 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09df \u09a4\u09be\u09b9\u09b2\u09c7 \u098f\u09a6\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af
\n\u09a5\u09c7\u0995\u09c7 \u09b6\u09c1\u09a7\u09c1 \u09e9\u099f\u09bf \u09b8\u09bf\u09b2\u09c7\u0995\u09cd\u099f \u0995\u09b0\u09c1\u09a8\u0964<\/p>\n

find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf
\nMongoDB \u098f\u09b0 find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09bf\u09df\u09c7 \u0986\u0997\u09c7\u09b0 \u099f\u09bf\u0989\u099f\u09cb\u09b0\u09bf\u09df\u09be\u09b2\u09c7 \u0986\u09b2\u09cb\u099a\u09a8\u09be (\u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09df \u0985\u09aa\u09b6\u09a8\u09be\u09b2 \u09aa\u09cd\u09af\u09be\u09b0\u09be\u09ae\u09bf\u099f\u09be\u09b0 \u09ac\u09be\u09a6\u09c7) \u0995\u09b0\u09be \u09b9\u09df\u09c7\u099b\u09c7\u0964 \u0986\u09aa\u09a8\u09bf \u09af\u0996\u09a8 MongoDB \u09a4\u09c7 find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09b8\u09ae\u09cd\u09aa\u09be\u09a6\u09a8 \u0995\u09b0\u09c7\u09a8 \u09a4\u0996\u09a8 \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b8\u09ac \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09b6\u09a8 \u0995\u09b0\u09c7\u0964
\n\u098f\u099f\u09bf\u0995\u09c7 \u09b8\u09c0\u09ae\u09be\u09ac\u09a6\u09cd\u09a7 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u09aa\u09a8\u09be\u09b0 \u09ae\u09be\u09a8 1 \u09ac\u09be 0 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0-\u09a4\u09be\u09b2\u09bf\u0995\u09be \u09b8\u09c7\u099f \u0995\u09b0\u09be\u09b0 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09ac\u09c7\u0964 \u09e7 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09a6\u09a8 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u09ac\u0982 \u09e6 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0 \u0986\u09a1\u09bc\u09be\u09b2 \u0995\u09b0\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be \u09b9\u09af\u09bc\u0964<\/p>\n

\u09b8\u09bf\u09a8\u099f\u09cd\u09af\u09be\u0995\u09cd\u09b8:
\n\u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8 \u09a6\u09bf\u09df\u09c7 \u09ac\u09c7\u09b8\u09bf\u0995 \u09b8\u09bf\u09a8\u099f\u09cd\u09af\u09be\u0995\u09cd\u09b8 \u09ac\u09be \u09ac\u09be\u0995\u09cd\u09af \u0997\u09a0\u09a8 () \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09bf\u09ae\u09cd\u09a8\u09b0\u09c2\u09aa\u0983<\/p>\n

>db.COLLECTION_NAME.find({},{KEY:1})<\/p>\n

\u0989\u09a6\u09be\u09b9\u09b0\u09a3
\n\u09a8\u09bf\u09ae\u09cd\u09a8\u09b2\u09bf\u0996\u09bf\u09a4 \u0995\u09be\u09b2\u09c7\u0995\u09b6\u09a8 myycol \u09a4\u09a5\u09cd\u09af \u09aa\u09b0\u09cd\u09af\u09be\u09b2\u09cb\u099a\u09a8\u09be \u0995\u09b0\u09c1\u09a8\u0983<\/p>\n

{ “_id” : ObjectId(5983548781331adf45ec5), “title”:”MongoDB Overview”}
\n{ “_id” : ObjectId(5983548781331adf45ec6), “title”:”NoSQL Overview”}
\n{ “_id” : ObjectId(5983548781331adf45ec7), “title”:”Tutorials Point Overview”}<\/p>\n

\u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f quering \u098f\u09b0 \u09b8\u09ae\u09df \u09a8\u09bf\u09ae\u09cd\u09a8\u09b2\u09bf\u0996\u09bf\u09a4 \u0989\u09a6\u09be\u09b9\u09b0\u09a3\u09c7 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u099f\u09be\u0987\u099f\u09c7\u09b2 \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09b6\u09a8 \u0995\u09b0\u09ac\u09c7\u0983<\/p>\n

>db.mycol.find({},{“title”:1,_id:0})
\n{“title”:”MongoDB Overview”}
\n{“title”:”NoSQL Overview”}
\n{“title”:”Tutorials Point Overview”}
\n><\/p>\n

\u09a6\u09af\u09bc\u09be \u0995\u09b0\u09c7 \u09a8\u09cb\u099f \u0995\u09b0\u09c7 \u09b0\u09be\u0996\u09c1\u09a8- find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u09b9\u09c7\u09b0 \u09b8\u09ae\u09df _id field \u09b8\u09ac\u09b8\u09ae\u09df \u09aa\u09cd\u09b0\u09a6\u09b0\u09cd\u09b6\u09a8 \u0995\u09b0\u09c7\u0964 \u09af\u09a6\u09bf \u0986\u09aa\u09a8\u09bf \u098f\u0987 \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0\u099f\u09bf \u09a8\u09be \u099a\u09be\u09a8 \u09a4\u09be\u09b9\u09b2\u09c7 \u0986\u09aa\u09a8\u09be\u0995\u09c7 \u098f\u099f\u09bf 0 \u09b8\u09c7\u099f \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964<\/p>\n","protected":false},"excerpt":{"rendered":"

MongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8 \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 MongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8 MongoDB \u09aa\u09cd\u09b0\u099c\u09c7\u0995\u09b6\u09a8\u09c7\u09b0 \u0985\u09b0\u09cd\u09a5 \u09b9\u099a\u09cd\u099b\u09c7 \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09b8\u0995\u09b2 \u09a4\u09a5\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u09a8\u09be \u0995\u09b0\u09c7 \u09ac\u09b0\u0982 \u09b6\u09c1\u09a7\u09c1\u09ae\u09be\u09a4\u09cd\u09b0 \u09aa\u09cd\u09b0\u09af\u09bc\u09cb\u099c\u09a8\u09c0\u09af\u09bc \u09a4\u09a5\u09cd\u09af \u09a8\u09bf\u09b0\u09cd\u09ac\u09be\u099a\u09a8 \u0995\u09b0\u09be\u0964 \u09af\u09a6\u09bf \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0 \u09eb\u099f\u09bf \u0995\u09cd\u09b7\u09c7\u09a4\u09cd\u09b0 \u09a5\u09be\u0995\u09c7 \u098f\u09ac\u0982 \u0986\u09aa\u09a8\u09be\u09b0 \u09e9\u099f\u09bf \u09a6\u09c7\u0996\u09be\u09a8\u09cb\u09b0 \u09aa\u09cd\u09b0\u09df\u09cb\u099c\u09a8 \u09b9\u09df \u09a4\u09be\u09b9\u09b2\u09c7 \u098f\u09a6\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af \u09a5\u09c7\u0995\u09c7 \u09b6\u09c1\u09a7\u09c1 \u09e9\u099f\u09bf \u09b8\u09bf\u09b2\u09c7\u0995\u09cd\u099f \u0995\u09b0\u09c1\u09a8\u0964 find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf MongoDB \u098f\u09b0 find() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09a8\u09bf\u09df\u09c7 \u0986\u0997\u09c7\u09b0 \u099f\u09bf\u0989\u099f\u09cb\u09b0\u09bf\u09df\u09be\u09b2\u09c7 \u0986\u09b2\u09cb\u099a\u09a8\u09be (\u09a6\u09cd\u09ac\u09bf\u09a4\u09c0\u09df … <\/p>\n

Continue reading<\/a><\/p>\n","protected":false},"author":8,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[222],"tags":[],"class_list":["post-6985","post","type-post","status-publish","format-standard","hentry","category-----mongodb-001","item-wrap"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack-related-posts":[{"id":6567,"url":"http:\/\/bangla.sitestree.com\/?p=6567","url_meta":{"origin":6985,"position":0},"title":"MongoDB Advantages . MongoDB \u098f\u09b0 \u0989\u09aa\u0995\u09be\u09b0\u09bf\u09a4\u09be","author":"Author-Check- Article-or-Video","date":"March 9, 2015","format":false,"excerpt":"MongoDB \u098f\u09b0 \u0989\u09aa\u0995\u09be\u09b0\u09bf\u09a4\u09be \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 \u00a0 \u0995\u09cb\u09a8 \u09b0\u09bf\u09b2\u09c7\u09b6\u09a8\u09be\u09b2 \u09a1\u09be\u099f\u09be\u09ac\u09c7\u09b8 \u098f\u09b0 \u098f\u0995\u099f\u09bf \u09b8\u09be\u09a7\u09be\u09b0\u09a3 \u09b8\u09cd\u0995\u09bf\u09ae\u09be \u09a1\u09bf\u099c\u09be\u0987\u09a8 \u09ac\u09be \u09a8\u0995\u09b6\u09be \u0986\u099b\u09c7 \u09af\u09be \u099f\u09c7\u09ac\u09bf\u09b2\u09c7\u09b0 \u09b8\u0982\u0996\u09cd\u09af\u09be \u098f\u09ac\u0982 \u098f\u0987 \u09b8\u09ae\u09b8\u09cd\u09a4 \u099f\u09c7\u09ac\u09bf\u09b2\u09c7\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u09b8\u09ae\u09cd\u09aa\u09b0\u09cd\u0995 \u09a6\u09c7\u0996\u09be\u09af\u09bc\u0964 RDBMS \u098f\u09b0 \u0989\u09aa\u09b0 MongoDB \u098f\u09b0 \u0989\u09aa\u0995\u09be\u09b0\u09bf\u09a4\u09be \u09e7\u0964 \u09b8\u09cd\u0995\u09bf\u09ae\u09be \u09b9\u09cd\u09b0\u09be\u09b8\u0983 MongoDB \u098f\u0995\u099f\u09bf \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f \u09a1\u09c7\u099f\u09be\u09ac\u09c7\u09b8 \u09af\u09c7\u0996\u09be\u09a8\u09c7 \u098f\u0995\u099f\u09bf \u0995\u09be\u09b2\u09c7\u0995\u09b6\u09a8 \u09ad\u09bf\u09a8\u09cd\u09a8 \u09ad\u09bf\u09a8\u09cd\u09a8 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7 \u09a7\u09be\u09b0\u09a3 \u0995\u09b0\u09c7\u0964 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0\u2026","rel":"","context":"In "\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB"","block_context":{"text":"\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB","link":"http:\/\/bangla.sitestree.com\/?cat=222"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6565,"url":"http:\/\/bangla.sitestree.com\/?p=6565","url_meta":{"origin":6985,"position":1},"title":"MongoDB Overview. MongoDB \u098f\u09b0 \u09b8\u0982\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09ac\u09bf\u09ac\u09b0\u09a3","author":"Author-Check- Article-or-Video","date":"March 16, 2015","format":false,"excerpt":"MongoDB \u098f\u09b0 \u09b8\u0982\u0995\u09cd\u09b7\u09bf\u09aa\u09cd\u09a4 \u09ac\u09bf\u09ac\u09b0\u09a3 \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 MongoDB \u098f\u0995\u099f\u09bf \u0995\u09cd\u09b0\u09b8 \u09aa\u09cd\u09b2\u09cd\u09af\u09be\u099f\u09ab\u09b0\u09cd\u09ae \u098f\u09ac\u0982 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f \u09ad\u09bf\u09a4\u09cd\u09a4\u09bf\u0995 \u09a1\u09c7\u099f\u09be\u09ac\u09c7\u09b8 \u09af\u09be \u0989\u099a\u09cd\u099a \u0995\u09be\u09b0\u09cd\u09af\u0995\u09be\u09b0\u09bf\u09a4\u09be, \u0989\u099a\u09cd\u099a \u09aa\u09cd\u09b0\u09be\u09aa\u09cd\u09af\u09a4\u09be \u098f\u09ac\u0982 \u09b8\u09b9\u099c \u0995\u09b0\u09cd\u09ae\u09aa\u09b0\u09bf\u09a7\u09bf \u09ac\u09c3\u09a6\u09cd\u09a7\u09bf\u09b0 \u0989\u09a6\u09cd\u09a6\u09c7\u09b6\u09cd\u09af \u0989\u09aa\u09b2\u09ac\u09cd\u09a7\u09bf \u0995\u09b0\u09be\u09df\u0964 MongoDB \u09b8\u0982\u0997\u09cd\u09b0\u09b9 \u098f\u09ac\u0982 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09ac\u09bf\u09b7\u09df\u0995 \u09a7\u09be\u09b0\u09a3\u09be\u09df \u0995\u09be\u099c \u0995\u09b0\u09c7\u0964 \u09a1\u09c7\u099f\u09be\u09ac\u09c7\u09b8 \u09a1\u09c7\u099f\u09be\u09ac\u09c7\u09b8 \u0995\u09be\u09b2\u09c7\u0995\u09b6\u09a8\u09c7\u09b0 \u099c\u09a8\u09cd\u09af \u098f\u0995\u099f\u09bf \u09b6\u09be\u09b0\u09c0\u09b0\u09bf\u0995 \u09a7\u09be\u09b0\u0995\u0964 \u09ab\u09be\u0987\u09b2 \u09b8\u09bf\u09b8\u09cd\u099f\u09c7\u09ae\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u099f\u09bf \u09a1\u09c7\u099f\u09be\u09ac\u09c7\u09b8 \u09ab\u09be\u0987\u09b2\u09c7\u09b0 \u09a8\u09bf\u099c\u09b8\u09cd\u09ac \u09b8\u09c7\u099f \u09aa\u09be\u09af\u09bc\u0964 \u098f\u0995\u099f\u09bf\u2026","rel":"","context":"In "\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB"","block_context":{"text":"\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB","link":"http:\/\/bangla.sitestree.com\/?cat=222"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6989,"url":"http:\/\/bangla.sitestree.com\/?p=6989","url_meta":{"origin":6985,"position":2},"title":"MongoDB Sort Documents . 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MongoDB \u09aa\u09bf\u098f\u0987\u099a\u09aa\u09bf","author":"Author-Check- Article-or-Video","date":"April 24, 2015","format":false,"excerpt":"MongoDB \u09aa\u09bf\u098f\u0987\u099a\u09aa\u09bf \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 \u00a0 \u09aa\u09bf\u098f\u0987\u099a\u09aa\u09bf \u098f\u09b0 \u09b8\u0999\u09cd\u0997\u09c7 MongoDB \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09be\u09b0 \u099c\u09a8\u09cd\u09af \u0986\u09aa\u09a8\u09be\u0995\u09c7 MongoDB \u09aa\u09bf\u098f\u0987\u099a\u09aa\u09bf \u09a1\u09cd\u09b0\u09be\u0987\u09ad\u09be\u09b0 \u09ac\u09cd\u09af\u09ac\u09b9\u09be\u09b0 \u0995\u09b0\u09a4\u09c7 \u09b9\u09ac\u09c7\u0964 \u09a8\u09bf\u099a\u09c7\u09b0 \u09b2\u09bf\u0999\u09cd\u0995 \u09a5\u09c7\u0995\u09c7 \u09a1\u09cd\u09b0\u09be\u0987\u09ad\u09be\u09b0\u099f\u09bf \u09a1\u09be\u0989\u09a8\u09b2\u09cb\u09a1 \u0995\u09b0\u09c7 \u09a8\u09bf\u09a8\u0983 https:\/\/s3.amazonaws.com\/drivers.mongodb.org\/php\/index.html \u09b8\u09b0\u09cd\u09ac\u09b6\u09c7\u09b7 \u09b0\u09bf\u09b2\u09bf\u099c \u09a1\u09be\u0989\u09a8\u09b2\u09cb\u09a1 \u0995\u09b0\u09a4\u09c7 \u09ad\u09c1\u09b2\u09ac\u09c7\u09a8 \u09a8\u09be\u0964 \u098f\u0996\u09a8 \u0986\u09b0\u09cd\u0995\u09be\u0987\u09ad\u099f\u09bf \u0986\u09a8\u099c\u09bf\u09aa \u0995\u09b0\u09c1\u09a8 \u098f\u09ac\u0982 \u0986\u09aa\u09a8\u09be\u09b0 \u09aa\u09bf\u098f\u0987\u099a\u09aa\u09bf \u098f\u0995\u09cd\u09b8\u099f\u09c7\u09a8\u09b6\u09a8 \u09a1\u09bf\u09b0\u09c7\u0995\u09cd\u099f\u09b0\u09bf\u09b0 (\"ext\" \u09a1\u09bf\u09ab\u09b2\u09cd\u099f\u09ad\u09be\u09ac\u09c7) \u09ae\u09a7\u09cd\u09af\u09c7 php_mongo.dll \u098f \u098f\u09ac\u0982 \u09a8\u09bf\u099a\u09c7\u09b0\u2026","rel":"","context":"In "\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB"","block_context":{"text":"\u09ae\u0999\u09cd\u0997 \u09a1\u09bf \u09ac\u09bf \u0964 MongoDB","link":"http:\/\/bangla.sitestree.com\/?cat=222"},"img":{"alt_text":"","src":"","width":0,"height":0},"classes":[]},{"id":6979,"url":"http:\/\/bangla.sitestree.com\/?p=6979","url_meta":{"origin":6985,"position":5},"title":"MongoDB Update Document","author":"Author-Check- Article-or-Video","date":"March 25, 2015","format":false,"excerpt":"MongoDB \u0986\u09aa\u09a1\u09c7\u099f \u09a1\u0995\u09c1\u09cd\u09ae\u09c7\u09a8\u09cd\u099f \u09a8\u09df\u09a8 \u099a\u09a8\u09cd\u09a6\u09cd\u09b0 \u09a6\u09a4\u09cd\u09a4 MongoDB \u098f\u09b0 update() \u098f\u09ac\u0982 save() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u098f\u0995\u099f\u09bf \u0995\u09be\u09b2\u09c7\u0995\u09b6\u09a8\u09c7 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f \u0986\u09aa\u09a1\u09c7\u099f \u0995\u09b0\u09a4\u09c7 \u09ac\u09cd\u09af\u09ac\u09b9\u09c3\u09a4 \u09b9\u09df\u0964 \u09af\u0996\u09a8 save() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09bf\u09a6\u09cd\u09af\u09ae\u09be\u09a8 \u09a8\u09a5\u09bf save() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf\u09cd\u09b0 \u09ae\u09a7\u09cd\u09af\u09c7 \u0997\u09c3\u09b9\u09c0\u09a4 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f \u09b8\u09be\u09a5\u09c7 \u09aa\u09cd\u09b0\u09a4\u09bf\u09b8\u09cd\u09a5\u09be\u09aa\u09a8 \u0995\u09b0\u09c7 \u09a4\u0996\u09a8 update() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09bf\u09a6\u09cd\u09af\u09ae\u09be\u09a8 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f \u098f\u09b0 value \u09ac\u09be \u09ae\u09be\u09a8\u0995\u09c7 \u0986\u09aa\u09a1\u09c7\u099f \u0995\u09b0\u09c7\u0964 MongoDB update() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf update() \u09aa\u09a6\u09cd\u09a7\u09a4\u09bf \u09ac\u09bf\u09a6\u09cd\u09af\u09ae\u09be\u09a8 \u09a1\u0995\u09c1\u09ae\u09c7\u09a8\u09cd\u099f\u09c7\u09b0\u2026","rel":"","context":"In 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