Doing Upserts with the Help of MERGE

There will be times that you encounter a situation where you have to update a row, if it exists, or create a new row if the certain data is not already present. There will also be times when you do not want to Insert any duplicate information into a table. All of these scenarios can be implemented with a well-structured SQL MERGE statement, such as the following:

MERGE [Table] WITH (HOLDLOCK) AS tUSING (VALUES ( @ID)) AS s (ID)ON s.ID = t.IDWHEN NOT MATCHED BY TARGET THENINSERT ([Field1],[Field2],[Field3])VALUES (@ValueForField1,@valueForField2,@ValueForField3); 

I checked whether or not an ID already exists inside the table named TABLE. If it doesn’t exist, it will INSERT a new row, otherwise it won’t do anything.

Share the Post:
Share on facebook
Share on twitter
Share on linkedin

Overview

The Latest

microsoft careers

Top Careers at Microsoft

Microsoft has gained its position as one of the top companies in the world, and Microsoft careers are flourishing. This multinational company is efficiently developing popular software and computers with other consumer electronics. It is a dream come true for so many people to acquire a high paid, high-prestige job

your company's audio

4 Areas of Your Company Where Your Audio Really Matters

Your company probably relies on audio more than you realize. Whether you’re creating a spoken text message to a colleague or giving a speech, you want your audio to shine. Otherwise, you could cause avoidable friction points and potentially hurt your brand reputation. For example, let’s say you create a

chrome os developer mode

How to Turn on Chrome OS Developer Mode

Google’s Chrome OS is a popular operating system that is widely used on Chromebooks and other devices. While it is designed to be simple and user-friendly, there are times when users may want to access additional features and functionality. One way to do this is by turning on Chrome OS