This command removes the database and also removes the directory and files on the database server for the database. Just like the other databases here, there is no MySQL “delete database” command specifically, but the Drop Database command is used to drop or delete a database. PostgreSQL...
The DROP command removes all the objects stored in the database and database from the SQL server. The DROP query removes the database permanently from the SQL Server. If tables and views stored in the database are important for you, then the data backup needs to be kept in another datab...
TheDROP DATABASEcommand is used to delete an existing SQL database. The following SQL drops a database named "testDB": ExampleGet your own SQL Server DROPDATABASEtestDB; Note:Be careful before dropping a database. Deleting a database will result in loss of complete information stored in th...
DatabaseOptionKind DataCompressionLevel DataCompressionOption DataModificationSpecification DataModificationStatement DataModificationTableReference DataRetentionTableOption DataTypeReference DataTypeSequenceOption DbccCommand DbccNamedLiteral DbccOption DbccOptionKind DbccStatement DeallocateCursorStatement DeclareCursorStateme...
create database jack; use jack; create table kaven ( id integer auto_increment, primary key PRIMARY_KEY(id) ); lock tables kaven as kv read local; create database jack2; 1. 2. 3. 4. 5. 6. 7. 8. Can’t execute the given command because you have active locked tables or an acti...
Tip: Make sure you have admin privilege before dropping any database. Once a database is dropped, you can check it in the list of databases with the following SQL command: SHOW DATABASES;Exercise? What is the purpose of the SQL DROP DATABASE statement? To delete a table from a database...
Command syntax >>-DROP--+-DATABASE-+--database-alias--+---+--->< '-DB---' '-AT DBPARTITIONNUM-' Command parameters DATABASEdatabase-alias Specifies the alias of the database to be dropped. The database must be cataloged in thesystem database directory. AT DBPARTITIONNUM Specifies...
昨天晚上接到一个网络服务请求,由于不小心点击了自己产品软件上面的清空数据功能(这个工具确实需要小心,在Oracle恢复案例中,也有xx企业erp该功能导致数据被删除请求恢复),导致MySQL数据库被直接drop database掉了,之前没有做任何备份,只是发生故障之后,他们立即封存现场,备份出来了ibdata1文件。接到请求之后,通过让其把...
hivemapreduce云数据库 SQL Server数据库sql 大数据的生态包含各种各样的组件,hive是其中之一,hive主要是作为数据仓库的工具,简化相关人员的代码工作,只要编写简单的SQL就可以实现mapreduce效果。 SRE运维实践 2021/03/04 6160 Hbase-2.0.0_02_常用操作 hbaseshellTDSQL MySQL 版http大数据 主要是常用的hbase shel...
To delete a database: 要删除一个数据库的话可以这样写: DROP DATABASE database_name --- Truncate a Table 截表 What if we only want to get rid of the data inside a table, and not the table itself? Use the TRUNCATE TABLE command (deletes only the data inside the table): 当我们只想...