{"id":659,"date":"2019-01-02T16:34:37","date_gmt":"2019-01-02T08:34:37","guid":{"rendered":"https:\/\/wyxxt.org.cn\/?p=659"},"modified":"2023-12-04T17:05:12","modified_gmt":"2023-12-04T09:05:12","slug":"mongodb-shell%e8%84%9a%e6%9c%ac","status":"publish","type":"post","link":"https:\/\/wyxxt.org.cn\/?p=659","title":{"rendered":"mongodb\u5b57\u6bb5\u6dfb\u52a0\u4fee\u6539\u5220\u9664"},"content":{"rendered":"<h3>mongodb\u6dfb\u52a0\u5b57\u6bb5<\/h3>\n<pre><code class=\"language-shell line-numbers\">i=1\ndb.suppliers.find({}).forEach(function(obj) {\n  obj.sup_id=new NumberInt(i);\n  ((i++));\n  db.suppliers.save(obj);\n})\n<\/code><\/pre>\n<h3>mongodb\u5220\u9664\u5b57\u6bb5<\/h3>\n<pre><code class=\"language-shell line-numbers\">db.suppliers.update({},\n    {$unset:{\"sub_id\":\"\"}},\n    false,\n    true);\n<\/code><\/pre>\n<h3>mongodb\u4fee\u6539\u5b57\u6bb5\u540d<\/h3>\n<pre><code class=\"language-shell line-numbers\">db.example.update(\n    {},\n    {$rename:{\"name.old\":\"name.new\"}},\n    false,\n    true);\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>mongodb\u6dfb\u52a0\u5b57\u6bb5 i=1 db.suppliers.find({}).forEach(function( 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