Use the TRUNCATE TABLE command (deletes only the data inside the table): 当我们只想将表内的数据做完成清楚而保留其内部结构的话,可以使用TRUNCATE TABLE命令(仅仅删除表中的数据) TRUNCATE TABLE table_name
TheDROP INDEXcommand is used to delete an index in a table. MS Access: DROPINDEXindex_nameONtable_name; SQL Server: DROPINDEXtable_name.index_name; DB2/Oracle: DROPINDEXindex_name; MySQL: ALTERTABLEtable_name DROPINDEXindex_name; DROP DATABASE ...
Connect to SQL Server and right-click the database you want to remove. Click delete command and the following screen will appear.Click OK to remove the database (in this example, the name is Testdb as shown in the above screen) from MS SQL Server....
SQL コピー -- This script uses sqlcmd scripting variables. They are in the form -- $(MyVariable). For information about how to use scripting variables -- on the command line and in SQL Server Management Studio, see the -- "Executing Replication Scripts" section in the topic...
Learn more about the Microsoft.SqlServer.TransactSql.ScriptDom.DropIndexStatement.DropIndexStatement in the Microsoft.SqlServer.TransactSql.ScriptDom namespace.
Learn more about the Microsoft.SqlServer.TransactSql.ScriptDom.DropColumnMasterKeyStatement.DropColumnMasterKeyStatement in the Microsoft.SqlServer.TransactSql.ScriptDom namespace.
SQL -- This script uses sqlcmd scripting variables. They are in the form-- $(MyVariable). For information about how to use scripting variables-- on the command line and in SQL Server Management Studio, see the-- "Executing Replication Scripts" section in the topic-- "Programming Replication...
SQL Kopiraj -- This script uses sqlcmd scripting variables. They are in the form -- $(MyVariable). For information about how to use scripting variables -- on the command line and in SQL Server Management Studio, see the -- "Executing Replication Scripts" section in the ...
truncate和delete 只删除数据,表结构不变; drop会删除整个表(包括表结构),drop将删除表的结构被依赖的约束(constrain),触发器(trigger)和索引(in sql delete drop truncate 删除表 转载 doscommand 2023-12-24 08:55:05 89阅读 drop删除表数据 mysql 数据库删除语句drop Delete :删除数据表中的行(可以...
ExampleGet your own SQL Server DROP DATABASE testDB; 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;...