This topic describes the limits of RDS for SQL Server. To guarantee instance stability and security, you must understand the limits.

An RDS for SQL Server instance provides a Microsoft SQL Server license. You cannot use your own license. The other limits are described in the following table.

Function Cluster (AlawayOn) Edition High-Availibility Edition Basic Edition

2017 Enterprise

2017 Standard

2016 Standard/Enterprise

2012 Standard/ Enterprise

2008 R2 Enterprise

2016 Web

2012 Web/Enterprise

Maximum number of databases (Note) 300 300 50 400
Maximum number of database accounts Unlimited Unlimited 500 Unlimited
Create user, LOGIN, or database Supported Supported Supported Supported
Database-level DDL trigger Supported Supported Not supported Supported
Database permission authorization Supported Supported Not supported Supported
KILL permission Supported Supported Supported Supported
LinkServer Supported Supported Not supported Not supported
Distributed transaction Supported Supported Not supported Not supported
SQL Profiler Supported Supported Supported Supported
Tuning Advisor Supported Supported Not supported Supported
Change Data Capture (CDC) Supported Supported Not supported Supported
Chage Tracking Supported Supported Supported Supported
Windows domain account login Not supported Not supported Not supported Not supported
Email
SQL Server Integration Services (SSIS)
SQL Server Analysis Services (SSAS)
SQL Server Reporting Services (SSRS)
R Services
Common Language Runtime (CLR)
Asynchronous communication
Replication
Policy management
Note
  • RDS for SQL Server instances already have Microsoft SQL Server licenses and do not support your own licenses.

  • For SQL Server 2012/2016/2017, you can submit a ticket to apply for increasing the higher maximum number of databases.