mongodb命令----批量更改文档字段名

因为mongodb基于javascript的特性，为了体验cursor的威力我们不妨利用js的for循环创建记录

先创建文档

db.createCollection("columnsample")

在文档中插入数据

for(var i = ;i<;i++)
{
  db.columnsample.insert(
  {
  _id:i,
  name:"陈培昌"+i,
  content:  "陈培昌打了沙袋"+i+"拳",
  respomse:"嗷儿喂~"
  }
  )
}

这里介绍一种批量插入数据的办法，特此鸣谢燕十八的PHP开发课程mongodb章节，这里的数据范例来自相关课件

其格式为db.collection.insert([{记录1},{记录2},{记录3}])

db.goods.insert(
[
{"goods_id":,"cat_id":,"goods_name":"\u8bfa\u57fa\u4e9a5320 XpressMusic","goods_number":,"click_count":,"shop_price":1311.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u8bfa\u57fa\u4e9a5800XM","goods_number":,"click_count":,"shop_price":2625.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u6469\u6258\u7f57\u62c9A810","goods_number":,"click_count":,"shop_price":788.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u6052\u57fa\u4f1f\u4e1aG101","goods_number":,"click_count":,"shop_price":823.33,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u590f\u65b0N7","goods_number":,"click_count":,"shop_price":2300.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u590f\u65b0T5","goods_number":,"click_count":,"shop_price":2878.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u4e09\u661fSGH-F258","goods_number":,"click_count":,"shop_price":858.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u4e09\u661fBC01","goods_number":,"click_count":,"shop_price":280.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u91d1\u7acb A30","goods_number":,"click_count":,"shop_price":2000.00,"add_time":},
{"goods_id":,"cat_id":,"goods_name":"\u591a\u666e\u8fbeTouch HD","goods_number":,"click_count":,"shop_price":5999.00,"add_time":}
]
)

大功告成！.......oh，shit！字段名根本就拼错了，response应该是！

那么，应该如此操作

db.columnsample.updateMany(
{},
{
  "$rename":{"remponse":"response"}
}
)