MongoDB Community: The source-available, free-to-use, and self-managed version of MongoDB Syntax The command has the following syntax: db.runCommand( { dropDatabase:1, writeConcern: <document>, comment: <any> } ) Command Fields The command takes the following optional fields: ...
dropUser(username) db.repairDatabase() db.resetError() db.runCommand(cmdObj) run a database command. if cmdObj is a string, turns it into { cmdObj : 1 } db.serverStatus() db.setLogLevel(level,<component>) db.setProfilingLevel(level,<slowms>) 0=off 1=slow 2=all db.setWrite...
如果业务上能接受按日期等属性分库表,通过 drop 库表的方式能够最便捷的节省空间。 如果通过逻辑删除的方式,想要马上得到空间释放,可以进行 compact 操作,命令如下: 代码语言:txt AI代码解释 db.runCommand({compact: <collection name>}) 参考文档:https://www.mongodb.com/docs/v6.0/reference/command/compact/ ...
echo "db.dropDatabase()" | mongo <database name> 1. #3楼 我发现这很容易记住: mongo //to start the mongodb shell show dbs //to list existing databases use <dbname> //the <dbname> is the database you'd like to drop db //should show <dbname> just to be sure I'm working with...
needs to lock the data directory, so cannot be used if a mongod is currently accessing the same path --directoryperdb if dbpath specified, each db is in a separate directory --journal enable journaling -d [ --db ] arg database to use ...
输入: use stu 输出: switched to db stu查看数据库show dbs 使用此命令查看刚刚创建的数据库是无法查看的,被插入数据后才可以看到输入:> show dbs 输出: admin 0.000GB local 0.000GB删除数据库db.dropDatabase() 删除当前所用的数据库输入: > db.dropDatabase() 输出: { "dropped" : "test", "ok" ...
db.dropDatabase()//会删除当前所在数据库,所以删除前用use先切换到要删除的数据库 例子: 但是通过show dbs查看现有数据库时看不到,因为你还没创建表,如果创建了表,就看得见数据库了。 二、表 1.创建表及删除表 1.4 db.createCollection('collectionName');//创建collection,创建表1.5collection 允许隐式创建 ...
command: mongod --shardsvr --directoryperdb --replSet shard3 volumes: - /etc/localtime:/etc/localtime - /data/base/fates/mongo/shard3:/data/db privileged: true networks: - mongo config1: image: mongo:4.0.5 container_name: mongo_config1 # --configsvr: 这个参数仅仅是将默认端口由27017...
MongoDB\Driver\Exception\RuntimeException Example The following example drops thetestdatabase: <?php $client=newMongoDB\Client; $client->dropDatabase('test'); See Also MongoDB\Database::drop() dropDatabasecommand reference in the MongoDB manual...
Database Operations¶ Authentication Commands¶ NameDescription logoutTerminates the current authenticated session. authenticateStarts an authenticated session using a username and password. copydbgetnonceThis is an internal command to generate a one-time password for use with thecopydbcommand. ...