MongoDB中怎么实现数据增加操作-创新互联
这期内容当中小编将会给大家带来有关MongoDB中怎么实现数据增加操作,文章内容丰富且以专业的角度为大家分析和叙述,阅读完这篇文章希望大家可以有所收获。
乐山ssl适用于网站、小程序/APP、API接口等需要进行数据传输应用场景,ssl证书未来市场广阔!成为成都创新互联的ssl证书销售渠道,可以享受市场价格4-6折优惠!如果有意向欢迎电话联系或者加微信:13518219792(备注:SSL证书合作)期待与您的合作!只要是数据库那么就绝对离不开最为核心的功能:CRUD,所以在MongoDB里面对于数据的操作也是支持的,但是需要提醒的是,除了增加之外,其它的都很麻烦。
1、数据增加
使用“db.集合.insert()”可以实现数据的增加操作。
范例:增加一个简单数据
> use hr
switched to db hr
> db.info.insert({"url":"www.stone.com"});
WriteResult({ "nInserted" : 1 })
> db.info.find();
{ "_id" : ObjectId("5990f8ea3268c8e84253ba3b"), "url" : "www.stone.com" }
范例:保存数组
> db.info.insert([{"url":"www.stone.com"},{"url":"www.stonedb.com"}])
BulkWriteResult({
"writeErrors" : [ ],
"writeConcernErrors" : [ ],
"nInserted" : 2,
"nUpserted" : 0,
"nMatched" : 0,
"nModified" : 0,
"nRemoved" : 0,
"upserted" : [ ]
> db.info.find();
{ "_id" : ObjectId("5990f8ea3268c8e84253ba3b"), "url" : "www.stone.com" }
{ "_id" : ObjectId("5990f97d3268c8e84253ba3c"), "url" : "www.stone.com" }
{ "_id" : ObjectId("5990f97d3268c8e84253ba3d"), "url" : "www.stonedb.com" }
如果想要保存多个数据,那么就使用数组。
范例:保存1000个数据
> for(var x=0;x<1000;x++){db.info.insert({"url":"stone_"+x});}
WriteResult({ "nInserted" : 1 })
> db.info.find();
{ "_id" : ObjectId("5990f8ea3268c8e84253ba3b"), "url" : "www.stone.com" }
{ "_id" : ObjectId("5990f97d3268c8e84253ba3c"), "url" : "www.stone.com" }
{ "_id" : ObjectId("5990f97d3268c8e84253ba3d"), "url" : "www.stonedb.com" }
{ "_id" : ObjectId("5990faea3268c8e84253ba3e"), "url" : "stone_0" }
{ "_id" : ObjectId("5990faea3268c8e84253ba3f"), "url" : "stone_1" }
{ "_id" : ObjectId("5990faea3268c8e84253ba40"), "url" : "stone_2" }
{ "_id" : ObjectId("5990faea3268c8e84253ba41"), "url" : "stone_3" }
{ "_id" : ObjectId("5990faea3268c8e84253ba42"), "url" : "stone_4" }
{ "_id" : ObjectId("5990faea3268c8e84253ba43"), "url" : "stone_5" }
{ "_id" : ObjectId("5990faea3268c8e84253ba44"), "url" : "stone_6" }
{ "_id" : ObjectId("5990faea3268c8e84253ba45"), "url" : "stone_7" }
{ "_id" : ObjectId("5990faea3268c8e84253ba46"), "url" : "stone_8" }
{ "_id" : ObjectId("5990faea3268c8e84253ba47"), "url" : "stone_9" }
{ "_id" : ObjectId("5990faea3268c8e84253ba48"), "url" : "stone_10" }
{ "_id" : ObjectId("5990faea3268c8e84253ba49"), "url" : "stone_11" }
{ "_id" : ObjectId("5990faea3268c8e84253ba4a"), "url" : "stone_12" }
{ "_id" : ObjectId("5990faea3268c8e84253ba4b"), "url" : "stone_13" }
{ "_id" : ObjectId("5990faea3268c8e84253ba4c"), "url" : "stone_14" }
{ "_id" : ObjectId("5990faea3268c8e84253ba4d"), "url" : "stone_15" }
{ "_id" : ObjectId("5990faea3268c8e84253ba4e"), "url" : "stone_16" }
Type "it" for more
> it
{ "_id" : ObjectId("5990faea3268c8e84253ba4f"), "url" : "stone_17" }
{ "_id" : ObjectId("5990faea3268c8e84253ba50"), "url" : "stone_18" }
上述就是小编为大家分享的MongoDB中怎么实现数据增加操作了,如果刚好有类似的疑惑,不妨参照上述分析进行理解。如果想知道更多相关知识,欢迎关注创新互联行业资讯频道。
文章名称:MongoDB中怎么实现数据增加操作-创新互联
网页网址:http://myzitong.com/article/csodij.html