MongoDB shell version: 2.2.2 connecting to: localhost/db { "dropped" : "db", "ok" : 1 } bye 1. 2. 3. 4. 5. 6. 7. command for Database drop is : first select the database which you want to delete use < database name > db.dropDatabase() echo "db.dropDatabase()" | m...
"db" : "", "collection" : "" }, "actions" : [ "bypassDocumentValidation", "collMod", "collStats", "compact", "convertToCapped", "createCollection", "createIndex", "dbStats", "dropCollection", "dropDatabase", "dropIndex", "enableProfiler", "listCollections", "listIndexes", "planCa...
MongoCollection::group() - Performs an operation similar to SQL's GROUP BY command MongoDB 核心文档的 » 数据库指令 ,以及这些特定指令的文档 » findAndModify、 » getLastError、 » repairDatabase (还有很多其他指令,这只是一些例子) User...
db.dropDatabase(); 5、从指定主机上克隆数据库 db.cloneDatabase(“127.0.0.1”); 将指定机器上的数据库的数据克隆到当前数据库 6、从指定的机器上复制指定数据库数据到某个数据库 db.copyDatabase("mydb", "temp", "127.0.0.1");将本机的mydb的数据复制到temp数据库中 7、修复当前数据库 db.repairDa...
Error: Failed to execute "listdatabases" command 再网上查找了一些资料,原因是因为没有指定数据库的登录权限,因为mongodb安装以后只在cmd中进行本地访问,所以要使用图形界面就需要使用登录账号及密码,下面是解决办法。 原文:https://www.cnblogs.com/mengyu/p/9071371.html ...
Integer, defaults to MongoCursor::$timeout. If "safe" is set, this sets how long (in milliseconds) for the client to wait for a database response. If the database does not respond within the timeout period, a MongoCursorTimeoutException will be thrown.更新...
public static void drop(final MongoNamespace namespace) throws Throwable { try { getMongoClient().getDatabase(namespace.getDatabaseName()) .runCommand(new Document("drop", namespace.getCollectionName())).timeout(10, SECONDS).toBlocking().first(); } catch (MongoCommandException e) { if (...
Query: drop table if exists student VerificationThe show Tables query gives a list of the tables in the current database in Impala. Therefore, you can verify whether a table is deleted, using the Show Tables statement.First of all, you need to switch the context to the database in which...
finalpublicMongoDB\Driver\Manager::executeWriteCommand(string$db,MongoDB\Driver\Command$command[,array$options= array()] ) :MongoDB\Driver\Cursor Executes the command on the primary server. This method will apply logic that is specific to commands that write (e.g.» drop) and take the Mong...
Depending on the size of your database, this command may take a few seconds to a few minutes to complete: If the path you're writing to contains spaces, remember to wrap the path in quotations on the command line emongorestore In the [unlikely] event of an unrecoverable Mongo failure, ...