1. D:\MongoDB\Server\3.4\bin>mongo
  2. MongoDB shell version v3.4.16--g83c3022fe4
  3. connecting to: mongodb://127.0.0.1:27017
  4. MongoDB server version: 3.4.--g83c3022fe4
  5. Server has startup warnings:
  6. --04T11::41.286+ I CONTROL  [initandlisten]
  7. --04T11::41.286+ I CONTROL  [initandlisten] ** WARNING: Access control is not enabled fo
  8. r the database.
  9. --04T11::41.286+ I CONTROL  [initandlisten] **          Read and write access to data an
  10. d configuration is unrestricted.
  11. --04T11::41.286+ I CONTROL  [initandlisten]
  12. --04T11::41.286+ I CONTROL  [initandlisten] Hotfix KB2731284 or later update is not inst
  13. alled, will zero-out data files.
  14. --04T11::41.286+ I CONTROL  [initandlisten]
  15. > show dbs
  16. admin  .000GB
  17. local  .000GB
  18. test   .000GB
  19. > use students
  20. switched to db students
  21. > db.class.insert({'name':'吴唐华'})
  22. WriteResult({ "nInserted" :  })
  23. > show collections
  24. class
  25. > db.class.drop()
  26. true
  27. > db.class2.insert({'name':'cwl','age':,'sex':})
  28. WriteResult({ "nInserted" :  })
  29. > db.class2.insert({'name':'yt','age':,'sex':})
  30. WriteResult({ "nInserted" :  })
  31. > db.class2.insert({'name':'jn','age':,'sex':})
  32. WriteResult({ "nInserted" :  })
  33. > db.class2.find()
  34. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  35. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  36. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  37. > db.class2.updata({'age':},{$set:{'age':}})
  38. --04T14::23.195+ E QUERY    [thread1] TypeError: db.class2.updata is not a function :
  39. @(shell)::
  40. > db.class2.update({'age':},{$set:{'age':}})
  41. WriteResult({ "nMatched" : , "nUpserted" : , "nModified" :  })
  42. > db.class2.find()
  43. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  44. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  45. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  46. > db.col.find({"name":{$type:}})
  47. > db.class2.find({"name":{$type:}})
  48. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  49. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  50. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  51. >
  52. > db.class.find()pretty()
  53. --04T15::22.253+ E QUERY    [thread1] SyntaxError: missing ; before statement @(shell):
  54. :
  55. > db.class.pretty()
  56. --04T15::30.826+ E QUERY    [thread1] TypeError: db.class.pretty is not a function :
  57. @(shell)::
  58. > db.class2.update({'age':{$gt:},{$set:{'sex':}})
  59. ... db.class2.find({"name":{$type:}})
  60. ...
  61. ... db.class2.update({'age':},{$set:{'age':}})
  62.  
  63. > db.class2.update({'age':},{$set:{'age':}})
  64. WriteResult({ "nMatched" : , "nUpserted" : , "nModified" :  })
  65. > db.class2.update({'age':},{$set:{'age':}})
  66. WriteResult({ "nMatched" : , "nUpserted" : , "nModified" :  })
  67. > db.class2.update({'age':{$gt:}},{$set:{'sex':}},true,true)
  68. WriteResult({ "nMatched" : , "nUpserted" : , "nModified" :  })
  69. > db.class2.find()
  70. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  71. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  72. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  73. > db.class2.find().pretty()
  74. {
  75.         "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"),
  76.         "name" : "cwl",
  77.         "age" : ,
  78.         "sex" :
  79. }
  80. {
  81.         "_id" : ObjectId("5d6f5be99b7e3e911a123a84"),
  82.         "name" : "yt",
  83.         "age" : ,
  84.         "sex" :
  85. }
  86. {
  87.         "_id" : ObjectId("5d6f5c139b7e3e911a123a85"),
  88.         "name" : "jn",
  89.         "age" : ,
  90.         "sex" :
  91. }
  92. > db.class2.update({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true)
  93. WriteResult({
  94.         "nMatched" : ,
  95.         "nUpserted" : ,
  96.         "nModified" : ,
  97.         "_id" : ObjectId("5d6f69b56685a146689b9147")
  98. })
  99. > db.class2.find()
  100. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  101. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  102. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  103. { "_id" : ObjectId("5d6f69b56685a146689b9147"), "name" : "lys", "age" : , "sex" : "yes" }
  104. > db.class2.update({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true)
  105. WriteResult({ "nMatched" : , "nUpserted" : , "nModified" :  })
  106. > db.class2.find()
  107. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  108. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  109. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  110. { "_id" : ObjectId("5d6f69b56685a146689b9147"), "name" : "lys", "age" : , "sex" : "yes" }
  111. > db.class2.update({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true).find()
  112. --04T15::22.078+ E QUERY    [thread1] TypeError: db.class2.update(...).find is not a fun
  113. ction :
  114. @(shell)::
  115. > db.class2.find(db.class2.update({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true))
  116. Error: error: {
  117.         "ok" : ,
  118.         "errmsg" : "cannot compare to undefined",
  119.         "code" : ,
  120.         "codeName" : "BadValue"
  121. }
  122. > db.class2.find({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true).find()
  123. --04T15::16.304+ E QUERY    [thread1] TypeError: db.class2.find(...).find is not a funct
  124. ion :
  125. @(shell)::
  126. > db.class2.find(db.class2.update({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true))
  127. Error: error: {
  128.         "ok" : ,
  129.         "errmsg" : "cannot compare to undefined",
  130.         "code" : ,
  131.         "codeName" : "BadValue"
  132. }
  133. > db.class2.find({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true)
  134. Error: error: {
  135.         "ok" : ,
  136.         "errmsg" : ">1 field in obj: { age: 12.0, sex: \"yes\" }",
  137.         "code" : ,
  138.         "codeName" : "BadValue"
  139. }
  140. > db.class2.find({'name':'mgq'},{$set:{'age':,"sex":'yes'}},true,true)
  141. Error: error: {
  142.         "ok" : ,
  143.         "errmsg" : ">1 field in obj: { age: 12.0, sex: \"yes\" }",
  144.         "code" : ,
  145.         "codeName" : "BadValue"
  146. }
  147. > db.class2.find()
  148. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" : , "sex" :  }
  149. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" : , "sex" :  }
  150. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" : , "sex" :  }
  151. { "_id" : ObjectId("5d6f69b56685a146689b9147"), "name" : "lys", "age" : , "sex" : "yes" }
  152. > db.class2.find({'name':'lys'},{$set:{'age':,"sex":'yes'}},true,true)
  153. Error: error: {
  154.         "ok" : ,
  155.         "errmsg" : ">1 field in obj: { age: 12.0, sex: \"yes\" }",
  156.         "code" : ,
  157.         "codeName" : "BadValue"
  158. }
  159. > db.class2.find({'by':'lys'})
  160. > db.class2.find({'by':'lys'})
  161. > db.class2.find({'by':'lys'}).pretty()
  162. > db.class2.insert({'name':'yt','class':'','age':,'money':})
  163. WriteResult({ "nInserted" :  })
  164. > db.class2.insert({'name':'clw','class':'','age':,'money':})
  165. WriteResult({ "nInserted" :  })
  166. > db.class2.insert({'name':'szy','class':'','age':,'money':})
  167. WriteResult({ "nInserted" :  })
  168. > db.class2.insert({'name':'szy','class':'','age':,'money':})
  169. WriteResult({ "nInserted" :  })
  170. > db.class.find({$or:[{'class':''},{'class':''}]})
  171. > db.class.find({$or:[{'class':''},{'class':''}]})
  172. > db.class2.find({$or:[{'class':''},{'class':''}]})
  173. { "_id" : ObjectId("5d6f739e9b7e3e911a123a86"), "name" : "yt", "class" : "", "age" : , "money"
  174.  :  }
  175. { "_id" : ObjectId("5d6f73bb9b7e3e911a123a87"), "name" : "clw", "class" : "", "age" : , "money
  176. " : 20000 }
  177. { "_id" : ObjectId("5d6f73f69b7e3e911a123a88"), "name" : "szy", "class" : "", "age" : , "money
  178. " : 20000000 }
  179. { "_id" : ObjectId("5d6f73ff9b7e3e911a123a89"), "name" : "szy", "class" : "", "age" : , "money
  180. " : 20 }
  181. > db.class2.insert({'name':'lm','class':'','age':,'money':})
  182. WriteResult({ "nInserted" :  })
  183. > db.class.find({'money':{$gte:},$or:[{'class':},{'class':''}]}).pretty()
  184. > db.class2.find({'money':{$gte:},$or:[{'class':},{'class':''}]}).pretty()
  185. {
  186.         "_id" : ObjectId("5d6f739e9b7e3e911a123a86"),
  187.         "name" : "yt",
  188.         "class" : "",
  189.         "age" : ,
  190.         "money" :
  191. }
  192. {
  193.         "_id" : ObjectId("5d6f73bb9b7e3e911a123a87"),
  194.         "name" : "clw",
  195.         "class" : "",
  196.         "age" : ,
  197.         "money" :
  198. }
  199. > db.class2.find({'money':{$gte:},$or:[{'class':},{'class':''}]},{'_id':,'class':).pre
  200. tty()
  201. ...
  202. ... db.class.find({'money':{$gte:},$or:[{'class':},{'class':''}]},{'class':}).pretty()
  203. ...
  204. ...
  205. >
  206. >
  207. > db.class2.find({'money':{$gte:},$or:[{'class':},{'class':''}]},{'class':}).pretty()
  208. { "_id" : ObjectId("5d6f739e9b7e3e911a123a86"), "class" : "" }
  209. { "_id" : ObjectId("5d6f73bb9b7e3e911a123a87"), "class" : "" }
  210. > db.class2.find({},{'mame':}).limit()
  211. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83") }
  212. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84") }
  213. > db.class2.find({},{'name':}).limit()
  214. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl" }
  215. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt" }
  216. > db.class2.find({},{'name':,'age':}).sort({'age':-})
  217. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" :  }
  218. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" :  }
  219. { "_id" : ObjectId("5d6f739e9b7e3e911a123a86"), "name" : "yt", "age" :  }
  220. { "_id" : ObjectId("5d6f73bb9b7e3e911a123a87"), "name" : "clw", "age" :  }
  221. { "_id" : ObjectId("5d6f73f69b7e3e911a123a88"), "name" : "szy", "age" :  }
  222. { "_id" : ObjectId("5d6f73ff9b7e3e911a123a89"), "name" : "szy", "age" :  }
  223. { "_id" : ObjectId("5d6f75509b7e3e911a123a8a"), "name" : "lm", "age" :  }
  224. { "_id" : ObjectId("5d6f69b56685a146689b9147"), "name" : "lys", "age" :  }
  225. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" :  }
  226. > db.class2.find({},{'name':,'age':}).sort({'age':})
  227. { "_id" : ObjectId("5d6f5ba19b7e3e911a123a83"), "name" : "cwl", "age" :  }
  228. { "_id" : ObjectId("5d6f69b56685a146689b9147"), "name" : "lys", "age" :  }
  229. { "_id" : ObjectId("5d6f73bb9b7e3e911a123a87"), "name" : "clw", "age" :  }
  230. { "_id" : ObjectId("5d6f73f69b7e3e911a123a88"), "name" : "szy", "age" :  }
  231. { "_id" : ObjectId("5d6f73ff9b7e3e911a123a89"), "name" : "szy", "age" :  }
  232. { "_id" : ObjectId("5d6f75509b7e3e911a123a8a"), "name" : "lm", "age" :  }
  233. { "_id" : ObjectId("5d6f5be99b7e3e911a123a84"), "name" : "yt", "age" :  }
  234. { "_id" : ObjectId("5d6f5c139b7e3e911a123a85"), "name" : "jn", "age" :  }
  235. { "_id" : ObjectId("5d6f739e9b7e3e911a123a86"), "name" : "yt", "age" :  }
  236. > db.class2.count()
  237.  
  238. > db.class2.aggregate([{$group:{_id:'class',num:{$max:'money'}}}])
  239. { "_id" : "class", "num" : "money" }
  240. > db.class2.aggregate([{$group:{_id:'class',num:{$max:'money'}}}])
  241. { "_id" : "class", "num" : "money" }
  242. > db.class2.aggregate([{$group:{_id:'class',num:{$max:'money'}}}])
  243. { "_id" : "class", "num" : "money" }
  244. > db.class2.aggregate([{$group:{'_id':'class',num:{$max:'money'}}}])
  245. { "_id" : "class", "num" : "money" }
  246. > db.class2.aggregate([{$group:{_id:'class',num:{$max:'$money'}}}])
  247. { "_id" : "class", "num" :  }
  248.  

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