In SQL,DROP TABLEis used to delete the tables in our database. Example -- delete Shippings tableTABLE Here, the SQL command will delete a table namedShippings. Also, make sure you haveadminorDROPpermission to run this command. DROP TABLE Syntax The syntax of the SQLDROP TABLEstatement is:...
TheDROP DATABASEcommand is used is to delete an existing SQL database. The following SQL drops a database named "testDB": Example DROPDATABASEtestDB; Note:Be careful before dropping a database. Deleting a database will result in loss of complete information stored in the database!
SQL DROP COLUMN Example in SSMS Here we’ll drop the columnReportsTofrom the Management Studio Object Explorer: Expand database Expand table Expand column Right click on column to drop Delete OK Or run the SQL command in the following statement: -- drop ReportsTo Column from Employees tableALT...
SQL -- Set ONLINE = OFF to execute this example on editions other than Enterprise Edition.ALTERTABLEProduction.TransactionHistoryArchiveDROPCONSTRAINTPK_TransactionHistoryArchive_TransactionIDWITH(ONLINE=ON); F. 删除 XML 索引 以下示例删除 AdventureWorks2022 数据库中ProductModel表上的 XML 索引。
SQL -- Set ONLINE = OFF to execute this example on editions other than Enterprise Edition.ALTERTABLEProduction.TransactionHistoryArchiveDROPCONSTRAINTPK_TransactionHistoryArchive_TransactionIDWITH(ONLINE=ON); F. 删除 XML 索引 以下示例删除 AdventureWorks2022 数据库中ProductModel表上的 XML 索引。
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;...
sql DROPTABLEProductVendor1; B. Dropping a table in another database The following example drops theSalesPerson2table in theAdventureWorks2022database. The example can be executed from any database on the server instance. sql DROPTABLEAdventureWorks2022.dbo.SalesPerson2 ; ...
The following example first creates a synonym, MyProduct, and then drops the synonym.SQL Másolás USE tempdb; GO -- Create a synonym for the Product table in AdventureWorks2022. CREATE SYNONYM MyProduct FOR AdventureWorks2022.Production.Product; GO -- Drop synonym MyProduct. USE tempdb; ...
DROP TABLEremoves one or more tables. All table data and the table definition areremoved, sobe carefulwith this command! In MySQL Version 3.22 or later, you can use the keywordsIF EXISTSto prevent an error from occurring for tables that don’t exist. ...
This can happen if it is interrupted by either an error or a FORCE APPLICATION ALL command. (For a partially redistributed database partition group, the REDISTRIBUTE_PMAP_ID in the SYSCAT.DBPARTITIONGROUPS catalog is not -1.) EVENT MONITOR event-monitor-name Identifies the event monitor that ...