mongodb命令----批量更改文檔字段名

因為mongodb基於javascript的特性，為了體驗cursor的威力我們不妨利用js的for循環創建記錄

先創建文檔

db.createCollection("columnsample")

在文檔中插入數據

for(var i = 1;i<10001;i++) { db.columnsample.insert( { _id:i, name:"陳培昌"+i, content: "陳培昌打了沙袋"+i+"拳", respomse:"嗷兒喂~" } ) }

這里介紹一種批量插入數據的辦法，特此鳴謝燕十八的PHP開發課程mongodb章節，這里的數據范例來自相關課件

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

db.goods.insert( [
{"goods_id":13,"cat_id":3,"goods_name":"\u8bfa\u57fa\u4e9a5320 XpressMusic","goods_number":8,"click_count":13,"shop_price":1311.00,"add_time":1241967762},
{"goods_id":14,"cat_id":4,"goods_name":"\u8bfa\u57fa\u4e9a5800XM","goods_number":1,"click_count":6,"shop_price":2625.00,"add_time":1241968492},
{"goods_id":15,"cat_id":3,"goods_name":"\u6469\u6258\u7f57\u62c9A810","goods_number":3,"click_count":8,"shop_price":788.00,"add_time":1241968703},
{"goods_id":16,"cat_id":2,"goods_name":"\u6052\u57fa\u4f1f\u4e1aG101","goods_number":0,"click_count":3,"shop_price":823.33,"add_time":1241968949},
{"goods_id":17,"cat_id":3,"goods_name":"\u590f\u65b0N7","goods_number":1,"click_count":2,"shop_price":2300.00,"add_time":1241969394},
{"goods_id":18,"cat_id":4,"goods_name":"\u590f\u65b0T5","goods_number":1,"click_count":0,"shop_price":2878.00,"add_time":1241969533},
{"goods_id":19,"cat_id":3,"goods_name":"\u4e09\u661fSGH-F258","goods_number":12,"click_count":7,"shop_price":858.00,"add_time":1241970139},
{"goods_id":20,"cat_id":3,"goods_name":"\u4e09\u661fBC01","goods_number":12,"click_count":14,"shop_price":280.00,"add_time":1241970417},
{"goods_id":21,"cat_id":3,"goods_name":"\u91d1\u7acb A30","goods_number":40,"click_count":4,"shop_price":2000.00,"add_time":1241970634},
{"goods_id":22,"cat_id":3,"goods_name":"\u591a\u666e\u8fbeTouch HD","goods_number":1,"click_count":15,"shop_price":5999.00,"add_time":1241971076}
] )

 

大功告成！.......oh，shit！字段名根本就拼錯了，response應該是！

那么，應該如此操作

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