Product Announcements

Release Notes

Release Notes and Announcements

User Guide

Overview

Single Node (Formerly Basic Edition)

Two-Node (Formerly High Availability/Cluster Edition)

Multi-Node

Differences Between Local Disk Architecture and Cloud Disk Architecture

Product Architecture

Strengths

Use Cases

Regions and AZs

Major Version Lifecycle Explanation

Features and Differences

Instance Types

Specification Type

Primary Instance Specifications

Read-Only Instance Specifications

Instance Specifications

Storage Types

Common Concepts

Network Environment

License Statement

Product Introduction

Billing Overview

Single-Node Instance Pricing

Two-Node Instance Pricing

Multi-Node Instance Pricing

Read-Only Instance Pricing

Product Pricing

Purchase Methods

Renewal Instructions

Payment Overdue

Refund

From Pay-as-You-Go to Monthly Subscription

Instance Adjustment Fees Description

Local Backup Space Billing

Cross-Region Backup Billing

Viewing Bill Details

Purchase Guide

Creating TencentDB for SQL Server Instance

Instance Connection Scenarios

Connecting to TencentDB for SQL Server Instance from Windows CVM Instance

Connecting to TencentDB for SQL Server Instance from Local System

Connecting to TencentDB for SQL Server Instance

Managing TencentDB for SQL Server Instance

Getting Started 

Constraints and Limits

Usage Specifications and Suggestions

Renaming Instance

Setting Instance Remarks

Setting Instance Tag

Setting Instance Project

Modify Instance-level Character Set Collation

Modify System Time Zone

Setting Instance Maintenance Information

Multi-AZ Disaster Recovery

Restarting Instance

Terminating Instance

Migrating Across AZs

Manual Primary-Secondary Switching

Recycle Bin

Maintaining Instance

Upgrading Instance Version

Adjusting Instance Specification

Adjusting the Number of Replica Nodes

Adjusting Instance Configuration

Read-Only Instance Overview

Managing Read-Only Instance

Read-Only Group

Backup node read-only

Read-Only Instance

Switching from Classic Network to VPC

Changing Network

Enabling/Disabling Public Network Address

Enabling Public Network Access Through CLB

 Network and Security

Account Types and Permissions

Account List

Creating Account

Creating Admin Account

Creating Designated Account

Resetting Password

Modifying Account Permissions

Deleting Account

Setting Account CAM Verification

Account Management

Database List

Creating Database

Setting Database Permissions

Cloning Database

Deleting Database

Setting Change Data Capture (CDC)

Setting Change Tracking (CT)

Shrinking Database

Database Management

Transparent data encryption

SSL Encryption Settings

Disk Encryption

Access Management

Configuring Security Groups

Data Security

Setting Instance Parameters

Viewing Parameter Modification Log

 Parameter Configuration

Viewing Monitoring Charts

Monitoring Metrics

Setting Alarm Policies

Setting Alarm Notification

Viewing Alarm Records

Setting Event Alarms

Monitoring and Alarms

Backup (New Edition)

Backup

Rolling back 

Backup and Restoration 

Querying and Downloading Slow Query Log

Querying and Downloading Blocking and Deadlock Events

Querying primary and standby switch logs

Manual Creation of the Latest Blocking and Deadlock Events

Log Management

Overview of Publish-Subscribe

Managing Publish-Subscribe

Publish-Subscribe

Purchasing Business Intelligence Server

Creating Windows Authentication Account

Adding Flat File

Interconnecting Source/Target Instances and Business Intelligence Server

Deploying Project

SSIS

Data Migration Solution Overview

Cold Backup Migration

Using DTS to Migrate Data

Data Migration (New)

Migrating Data from CVM-based SQL Server Instance

Migrating Data from SQL Server Instance Purchased at Other Cloud Service Provider or Built In-house 

Data Migration (Legacy)

Usage Instructions

Synchronization Instructions

Pre-check Failure Handling

Creating a Data Consistency Check Task

Data Synchronization (DTS) ﻿

Operation Guide

TencentDB for SQL Server Methods for Regular Maintenance

TencentDB for SQL Server Optimization of Slow SQL

How to Better Use Tempdb

Cross-Account Backup Restoration

Creating VPC for TencentDB for SQL Server

Connecting Kingdee K/3 WISE to TencentDB for SQL Server

Account Permissions and Permission Control

Enabling and Disabling the CDC Feature

Shrinking a Database

Practical Tutorial

History

Introduction

API Category

Request Structure

Common Params

Signature v3

Signature

Responses

Making API Requests

CreateBasicDBInstances

DescribeRegions

DescribeZones

DescribeProductConfig

DescribeSpecSellStatus

InquiryPriceCreateDBInstances

DescribeInstanceTradeParameter

DescribeOrders

DescribeInstanceByOrders

InquiryPriceUpgradeDBInstance

CreateDBInstances

CreateCloudDBInstances

Sales and fee related APIs

DescribeDBInstances

DescribeCrossRegionZone

DescribeCollationTimeZone

DescribeFlowStatus

DescribeInstanceTasks

ModifyDBInstanceName

ModifyDBInstanceNote

ModifyDBInstanceProject

DescribeUpgradeInstanceCheck

UpgradeDBInstance

CompleteExpansion

CutXEvents

SwitchCloudInstanceHA

RestartDBInstance

TerminateDBInstance

RenewPostpaidDBInstance

DeleteDBInstance

ModifyDReadable

RecycleDBInstance

DescribeDBInstancesAttribute

Instance Management related APIs

DescribeMaintenanceSpan

ModifyMaintenanceSpan

Operation and maintenance management related APIs

ModifyDBInstanceNetwork

Network management related APIs

API Documentation

TencentDB for SQL Server

Announcement Title	Release Date
Announcement on Optimizing the Extended Events File Download Feature	2026-01-22

Announcement Title	Release Date
Announcement on the Sales Discontinuation for TencentDB for SQL Server 2008 R2 Enterprise Instances	2025-07-21
Announcement on the Public Network Service Upgrade	2025-04-10

Announcement Title	Release Date
Announcement on the Public Network Link Change	2023-09-06
Announcement on the API Authentication Upgrade	2023-06-19
Changing Maintenance Time from the Local Region Time of the Instance to UTC+8 Time	2023-02-28
Announcement on the Account Type and Permission Change	2023-02-09
Product Architecture Renaming Notification	2023-02-09
Announcement on the Adjustment of Disk Storage Space Composition Rules	2023-02-07

Announcement Title	Release Date
Offline Basic Network Notification	2022-03-29
Announcement on the Commercial Billing of Backups	2022-06-06
Announcement on the Removal of the Basic Edition 1-Core Specification	2022-03-07

tencent cloud

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