External Article

Migration Guide: Migrating to SQL Server 2012 Failover Clustering and Availability Groups from Prior Clustering and Mirroring Deployments

This paper provides guidance for customers who prior to SQL Server 2012 have deployed SQL Failover Clustering for local high availability and database mirroring for disaster recovery, and who want to migrate to SQL Server AlwaysOn. It describes the corresponding SQL Server AlwaysOn scenario and the migration paths to SQL Server AlwaysOn. It also contains the important knowledge and considerations that you must know in order to successfully migrate to a HADR solution based on SQL Server AlwaysOn technology, which implements AlwaysOn Failover Cluster Instances for high availability and AlwaysOn Availability Groups for disaster recovery.

Blogs

ISACA AI Material/Exam Prep Discount (May 18 – June 30, 2026)

By

If you are considering any of the ISACA AI certs like the Advanced Artificial...

A Fabric solution can be very cost effective

By

Are you currently using Microsoft Fabric or considering migrating to it? If so, there...

Track SQL Server Configuration Changes Using the Error Log

By

Track SQL Server Configuration Changes Using the Error Log If you...

Read the latest Blogs

Forums

Alamat kontak resmi BCA KCP Pahlawan Telp:0817866887

By Layanan.24.jam

Tlp/Wa_Cs:0817-866-887  Jl. Khp Hasan Mustopa No.108, Padasuka, Kec. Cibeunying Kidul, Kota Bandung, Jawa Barat...

Alamat kontak resmi BCA KCP Dewi Sartika Telp:0817866887

By Layanan.bca

WhatsApp:0817866887 Jl. Dewi Sartika No.58, Balonggede, Kec. Regol, Kota Bandung, Jawa Barat 40251

SQL Server Showing Out of Space But Plenty of Drive Space

By AMCity

We have a SQL Server installed. We have a 500GB drive for the database....

Visit the forum

Question of the Day

Creating a JSON Document IV

I have this data in a table called dbo.NFLTeams

TeamID  TeamName       City             YearEstablished
------  --------       ----             ---------------
1       Cowboys        Dallas           1960
2       Eagles         Philadelphia     1933
3       Packers        Green Bay        1919
4       Chiefs         Kansas City      1960
5       49ers          San Francisco    1946
6       Broncos        Denver           1960
7       Seahawks       Seattle          1976
8       Patriots       New England      1960
If I run this code, how many rows are returned?
SELECT 
  YearEstablished,
  json_objectagg(city : TeamName)
FROM dbo.NFLTeams
GROUP BY  YearEstablished;

See possible answers