db.things.find( { a : { $type : 16 } } ); // matches if a is an int 9)正则表达式 mongo支持正则表达式,如: db.customers.find( { name : /acme.*corp/i } ); // 后面的i的意思是区分大小写 10) 查询数据内的值 下面的查询是查询colors内red的记录,如果colors元素是一个数据,数据库将...
You can query documents in MongoDB by using the following methods: Your programming language's driver. TheMongoDB Atlas UI. To learn more, seeQuery Documents with MongoDB Atlas. MongoDB Compass. ➤ Use theSelect your languagedrop-down menu in the upper-right to set the language of the ...
Database Manual / CRUD Operations / Query You can query arrays in MongoDB using the following methods: Your programming language's driver. TheMongoDB Atlas UI. To learn more, seeQuery an Array with MongoDB Atlas. MongoDB Compass. ➤ Use theSelect your languagedrop-down menu in the upper...
Reference:http://docs.mongodb.org/manual/tutorial/manage-the-database-profiler/ Profiling Levels: 1 resume 0 - the profiler is off, does not collect any data. 1 - collects profiling data for slow operations only. By default slow operations are those slower than 100 milliseconds. You can mod...
4 Disable ProfilingTo disable profiling, use the following helper in the mongo shell: set the default value 0; db.setProfilingLevel(0) 5当profile表过小时,调整表大小为4MBdb.setProfilingLevel(0) -- profile失效 db.system.profile.drop() -- 删除 ...
single container database. If your SAP HANA database can contain more than one multitenant database container, selectMulti-container system database (30013). If you want to connect to a tenant database or a database with a non-default instance number, selectCustomfrom thePortdrop-down menu....
single container database. If your SAP HANA database can contain more than one multitenant database container, selectMulti-container system database (30013). If you want to connect to a tenant database or a database with a non-default instance number, selectCustomfrom thePortdrop-down menu....
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$capsule->getDatabaseManager()->extend('mongodb', function($config) { return new Jenssegers\Mongodb\Connection($config); });UpgradingUpgrading from version 2 to 3In this new major release which supports the new mongodb PHP extension, we also moved the location of the Model class and ...