merge

SQLServerCentral Article

Getting started with the SQL MERGE statement

  • Article

This article is focused on beginners who have already started writing SQL queries and are now diving deep towards more data processing and complex queries in SQL. When we talk about data processing, an important concept that comes to our mind is performing ETL workloads to a data warehouse. ETL is a very complex topic […]

4 (1)

You rated this post out of 5. Change rating

2021-01-26

4,840 reads

SQLServerCentral Article

How To Avoid MERGE in SQL Server

  • Article

Introduction This article shows how to script a basic merge between two tables, without using MERGE. This can be handy when you're merging a pair of tables with hundreds of columns, since the script doesn't know anything about them. This technique introduces and populates some auditing columns (IS_DELETED, IS_INSERTED, IS_UPDATED, TRANSACTION_DATE) for each record, and runs fast. […]

4.5 (6)

You rated this post out of 5. Change rating

2023-02-20 (first published: )

18,724 reads

Blogs

Inspecting TSQL Abstract Syntax Trees

By

TSQL ScriptDOM is a useful library for parsing scripts into an abstract syntax tree....

Becoming a creator, my website experience

By

Over the past few months, I have debated starting a new blog to discuss...

T-SQL Tuesday #192 Invitation: SQL Server 2025 Excitement

By

It’s that time of the month again, and once again, I’m late and I’m...

Read the latest Blogs

Forums

Do You Really Need HA?

By Steve Jones - SSC Editor

Comments posted to this topic are about the item Do You Really Need HA?

The New Database CheckDB

By Steve Jones - SSC Editor

Comments posted to this topic are about the item The New Database CheckDB

MySQL’s BLACKHOLE Storage Engine: The Odd Feature I Wish SQL Server Shipped With

By Chandan Shukla

Comments posted to this topic are about the item MySQL’s BLACKHOLE Storage Engine: The...

Visit the forum

Question of the Day

The New Database CheckDB

I run this code:

create database experiment
go
use Experiment
go
select DATABASEPROPERTYEX('Experiment', 'LastGoodCheckDbTime')
What is returned?

See possible answers