Just use INNER JOIN as below DELETE messages, usersmessages FROM messages INNER JOIN usersmessages (Must be adapted to your situation)Ĭan't you just separate them by a semicolon? Delete from messages where messageid = '1' ĭelete from usersmessages where messageid = '1' This ensures the integrity of the data.Īnswered in SO. Most database management systems allow you to create a foreign key constraint so that if you delete a row in a table, the corresponding rows the related table are also removed automatically.
(select id from #DeletedSTID b where b.id=a.BusinessEntityID) ' SELECT = + ' delete from ' + tablename + ' a where exists I use it once and store it in temp table.įor Example I am using Adventure DB, USE AdventureWorks2012ĬREATE TABLE #DeletedSTID (id INT NOT NULL)ĬREATE TABLE #temp (tablename VARCHAR(100))įROM HumanResources.EmployeeDepartmentHistory Select * from above example I do not have to use "where name in()" every time. Output deleted.id into name in('Peter','Roy') Like this, DECLARE table(id int not null) I think correct approach is to first Delete Record from Student table without dynamic sql and store the deleted ID in temp table. I don't Now if that is what you was asking for in your question below (Your question was not specific like this one, so my answer was providing the dynamic sql logic in general) dbo.Students WHERE = IN('Roy','Peter') Delete T1 from. dbo.Students WHERE = IN('Roy','Peter') ĭelete T1 from. This Will Result a query like the following ( If these databases contains Students and Winners Table) Delete T1 from. VIEW QUERIES (you can copy result and execute it manually) WHERE EXISTS (SELECT 1 FROM #TblTemp WHERE #TblTemp.DatabaseName = name AND #TblTemp.TableName = 'Students') ANDĮXISTS (SELECT 1 FROM #TblTemp WHERE #TblTemp.DatabaseName = name AND #TblTemp.TableName = 'Winners') dbo.Students WHERE = IN(''Roy'',''Peter'') T.name collate database_default as TableNameįrom '+quotename(D.name)+'.sys.tables as Tįor xml path(''), type).value('substring((./text()), 13)', 'nvarchar(max)') Your script should look like -Get all Databases With corresponding DatabaseĬREATE TABLE #TblTemp (DatabaseName Varchar(255), Tablename Varchar(255)) Then, click the "OK" button to delete the database.You have to achieve this using Dynamic SQL Queryġ- First you have to list all Tables With there Corresponding Databases in a Temp TableĢ- Building Query for databases that contains Students and Winners dataTable.A pop-up will appear, from there, uncheck the "Delete backup and restore history information for database" and select the "Close existing connections" (So it can delete database, even if there is an open connection for database).Right-Click on the database name that you want to delete and click on "Delete" menu item.Open SSMS and then Connect to the Database Engine using your Credentials.If there is issue in running above query and deleting database, then you can also SSMS GUI, to delete the database. To Drop Multiple database at once using SQL Query, you can seperate it "," DROP DATABASE TestSumJoin, TestSumJoin2 Drop or delete database using SSMS(SQL Server Management Studio) GUI In the above query, we are not using "If Exists" and considering database exists. Click "Execute", your database will be deleted or droped.Copy and paste the following example into the query window, for example, if you want to delete database with name "TestSumJoin", your query to drop this database would be.From the Standard bar, click "New Query".So here are the basic steps to delete or drop database using SQL Query It allows you to conditionally delete a database only if the database already exists. In the above query, IF EXISTS option is available from SQL Server 2016 (13.x). Usually, the syntax to drop/delete any database using SQL Query is as below Use Master In previous question, I have mentioned answer for Check if table exists then delete it in SQL Server but now in this article, I have explained step by step procedure to delete or drop database in SQL Server using SSMS (SQL Server Management Studio) and to drop sql server database using SQL Query.
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