If Exists Update Else Insert with VB.net (sql parameterised query)

Question

I\'m hoping to use the following update\\insert method to speed up my application insert\\updates:

UPDATE [Application_Type_Table] 
SET ApplicationType=\'Test Va         


        

Answer 1

This pattern is known as an UPSERT. The modern way of doing this is to use MERGE in SQL Server 2008 e.g.

MERGE INTO Application_Type_Table AS target 
USING (
       VALUES (@RecordID, @TestValue)
      )  AS source (ID, ApplicationType)
   ON target.ID = source.ID
WHEN MATCHED 
   THEN UPDATE 
           SET ApplicationType = source.ApplicationType
WHEN NOT MATCHED 
   THEN INSERT (ID, ApplicationType) 
           VALUES (ID, ApplicationType);