Database

--connects to and disconnects from the mysql online database
--example call to connect:
--dbo.LinkedServerConnect_SP @connect = 1
--example call to disconnect:
--dbo.LinkedServerConnect_SP @connect = 0

CREATE PROC dbo.LinkedServerConnect_SP 
(@connect as int)
AS 
BEGIN 

if @connect = 1
begin

	if not exists(select name from sys.servers where name = 'yadayada') 
  	begin	
		
		EXEC sp_addlinkedserver 'yadayada', 'MySQL', 'MSDASQL', Null, Null, 'Driver={MySQL ODBC 3.51 Driver};DB=yadayada;SERVER=mysql.yadayada.com;option=512;uid=yadayada;pwd=yadayada'

	end

end

if @connect = 0
begin

	if exists(select name from sys.servers where name = 'yadayada') 
  	begin	
		
		EXEC sys.sp_dropserver @server = 'yadayada', @droplogins = 'droplogins'; 

	end

end

end

GO

Mycroft Holmes wrote:

that lives in a stored proc that does what it is told when it is told and everyone knows where to find it.

Richard Deeming wrote:

inserted

Richard Deeming wrote:

deleted

• sql trigger magic tables[^]: 413,000 results;
• sql trigger virtual tables[^]: 1,680,000 results;

SELECT
   A.ID As OriginalID,
   B.ID As DuplicateID
FROM
   -- Every pair of master records:
   MasterTable As A
   CROSS JOIN
   MasterTable As B
WHERE
   -- Only those pairs where A is earlier than B:
   A.ID < B.ID
And
   -- All detail lines for A exist for B:
   Not Exists
   (
      SELECT
         (relevant columns)
      FROM
         DetailTable
      WHERE
         MasterID = A.ID
      
      EXCEPT
      
      SELECT
         (relevant columns)
      FROM
         DetailTable
      WHERE
         MasterID = B.ID
   )
And
   -- All detail lines for B exist for A:
   Not Exists
   (
      SELECT
         (relevant columns)
      FROM
         DetailTable
      WHERE
         MasterID = B.ID
      
      EXCEPT
      
      SELECT
         (relevant columns)
      FROM
         DetailTable
      WHERE
         MasterID = A.ID
   )