MongoDB Atlas / Atlas Search / Create and Run Queries / Create a Query / 2. Use Operators & Collectors Definition regex regexinterprets thequeryfield as a regular expression.regexis a term-level operator, meaning that thequeryfield isn't analyzed. ...
mongodb复制 { "field": { $regex: /pattern/, $options: '<options>' } } 参数 参数DESCRIPTION field要查询的文档中的字段 /pattern/要匹配的正则表达式模式 options用于修改正则表达式行为的可选标志。 常见选项包括 i,用于不区分大小写的匹配,m 用于多行匹配,等等。
publicstaticvoidfind9(){// List<String> data = new ArrayList<>();// data.add("数组1");// data.add("数组2");// Criteria criteria = Criteria.where("name").in(data);//处理数据Criteria criteria = Criteria.where("name").in("数组1","数组2"); Query query = Query.query(criteria);...
db.user_info.find({"name":{"$regex":"^l.*g$"}}) View Code 11、查询以doc开头的名称,不区分大小写,mongodb正则默认区分大小写 db.user_info.find({"name":{"$regex":"(?i)^doc"}}) View Code 或者 db.user_info.find({"name":{"$regex":/^doc/i}}) 12、匹配以jeams开头的字符串(正...
In MongoDB, matching the pattern can do by using regular expression objects or using the $regex operator. Our database name is 'myinfo' and our collection name is 'student'. Here, is the collection bellow. Sample collection "student" ...
{"_id":4,comment:"It's just me. I'm testing. fred@MongoDB.com"} ]) 以下聚合使用$regexMatch来检查comment字段是否包含带有@mongodb.com的电子邮件地址,并将反馈归类为Employee或External。 db.feedback.aggregate( [ {$addFields: { "category": {$cond: {if: {$regexMatch: {input:"$comment",...
mongodb 字符串查找匹配中$regex的用法 官网地址:https://docs.mongodb.com/manual/reference/operator/query/regex/#regex-case-insensitive 举个例子来说:现在有以下集合(官网的例子): { "_id" : 100, "sku" : "abc123", "description" : "Single line description." } { "_id" : 101, "sku" : ...
If you want to put regular expression object in$inoperator, you have to use JavaScript regular expression object, for example: collection.find({"FirstName": {$in: [/abc/, /123/]}}) By the way,valin/val/is constant string, not the variable as you defined above....
官网地址:https://docs.mongodb.com/manual/reference/operator/query/regex/#regex-case-insensitive 举个例子来说:现在有以下集合...还有一个情形是:匹配规则中使用了锚,所谓的锚就是^ 开头, $ 结束 比如:db.products...
背景本来安装prometheus-operator用helm安装就是一句话的事奈何bitnami/prometheus-operator这版本的一个组件8080被应用占了,而且不智能的不切换端口,stable版本又太老提前准备好k8s环境,下载prometheus-operator安装包,我这里使用的0.8.0版本,k8s版本为v1.20.x,其版本与k8s版本有对应关系,请对应下载https:/ ...