{"width":"100%","categories":["mongodb"],"height":"190","author_name":"hiroppon","description":"$setOnInsert\u306e\u6a5f\u80fd\u3068\u6027\u80fd\u3092\u691c\u8a3c\u3092\u3057\u305f\u3002 \u7d50\u8ad6 $setOnInsert\u306b\u306f\u526f\u4f5c\u7528\u306f\u7121\u3055\u305d\u3046\u3002\u7a4d\u6975\u7684\u306b\u4f7f\u3063\u3066\u3044\u304d\u305f\u3044\u3002 $setOnInsert\u306e\u6a5f\u80fd upsert\u3068\u7d44\u307f\u5408\u308f\u305b\u3066\u4f7f\u3046\u3002 upsert \u30ec\u30b3\u30fc\u30c9\u304c\u7121\u304b\u3063\u305f\u5834\u5408\u306finsert\u3068\u3057\u3066\u50cd\u304d\u65e2\u306b\u30ec\u30b3\u30fc\u30c9\u304c\u3042\u3063\u305f\u5834\u5408\u306fupdate\u3068\u3057\u3066\u50cd\u304f\u3002 $setOnInset\u3067\u6307\u5b9a\u3057\u305f\u30d5\u30a3\u30fc\u30eb\u30c9\u306finsert\u306e\u5834\u5408\u306e\u6642\u3060\u3051\u521d\u671f\u5024\u3068\u3057\u3066\u30bb\u30c3\u30c8\u3055\u308c\u3001update\u3068\u306a\u3063\u305f\u5834\u5408\u306f\u7121\u8996\u3055\u308c\u308b\u3002 >use testdb // key\u30d5\u30a3\u30fc\u30eb\u30c9\u3092\u30e6\u30cb\u30fc\u30af\u30a4\u30f3\u30c7\u30c3\u30af\u30b9\u306b\u6307\u5b9a >db.cappedArray.ensureIndex({key:1},{uniq\u2026","blog_url":"https://crumbjp.hateblo.jp/","type":"rich","provider_name":"Hatena Blog","title":" MongoDB 2.4 \u306e\u65b0\u30af\u30a8\u30ea\u30fc$setOnInsert\u3092\u8a66\u3057\u305f","url":"https://crumbjp.hateblo.jp/entry/20130328/1364431871","published":"2013-03-28 09:51:11","image_url":null,"author_url":"https://blog.hatena.ne.jp/hiroppon/","version":"1.0","blog_title":"\u4e2d\u5e74engineer\u306e\u72ec\u308a\u8a00 - crumbjp","html":"<iframe src=\"https://hatenablog-parts.com/embed?url=https%3A%2F%2Fcrumbjp.hateblo.jp%2Fentry%2F20130328%2F1364431871\" title=\" MongoDB 2.4 \u306e\u65b0\u30af\u30a8\u30ea\u30fc$setOnInsert\u3092\u8a66\u3057\u305f - \u4e2d\u5e74engineer\u306e\u72ec\u308a\u8a00 - crumbjp\" class=\"embed-card embed-blogcard\" scrolling=\"no\" frameborder=\"0\" style=\"display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;\"></iframe>","provider_url":"https://hatena.blog"}