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SQL Server DBRE & DBA
Services

In short: JusDB provides Microsoft SQL Server Database Reliability Engineering, consulting, Query Store and execution-plan tuning, Always On availability design, migration, incident support, and retained remote DBA services. The work covers self-managed SQL Server and suitable Azure SQL or Amazon RDS targets, with scope and outcomes defined from workload evidence.

When SQL Server underperforms, you need engineers fluent in wait statistics, execution plans, Query Store, and Always On operations.

By plan

Support coverage

Evidence-led

DBRE decisions

Tested

Recovery runbooks

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SQL Server 2016 extended support ended on 14 July 2026. Inventory editions, dependencies, update coverage, and target compatibility before choosing an upgrade or migration path.

Plan Your EOL Migration →

Full-Spectrum SQL Server
Engineering

From slow report queries to Azure SQL MI migrations, the work starts with evidence and ends with a validated runbook.

Performance Tuning

Query plan dissection, missing index identification, wait-stat analysis, TempDB sizing, and execution plan cache optimization.

High Availability & DR

Always On AG design, failover cluster instances, log shipping, distributed availability groups, and contained availability groups, with workload-specific failover and recovery tests.

Replication & AG Setup

Synchronous and asynchronous Always On replicas, distributed AGs, readable secondaries for reporting offload, and peer-to-peer transactional replication with conflict detection.

Cloud Migration

Low-interruption moves to Azure SQL, AWS RDS, and Azure SQL Managed Instance with compatibility assessment, rehearsal, validation, and rollback plans.

Retained DBRE & DBA

Ongoing operations, proactive monitoring, maintenance, runbooks, and incident learning through dedicated Remote DBA and SQL Server Support scopes.

Security & Compliance

TDE, Always Encrypted, Row-Level Security, Dynamic Data Masking, SQL Server Audit, least privilege, and evidence mapping to requested control frameworks.

Tune from a Measured Baseline

SQL Server performance work starts with wait statistics, execution plans, and Query Store evidence. Authorized changes are then validated against the same workload baseline, with risk and rollback recorded.

Wait-stats triage: CXPACKET, PAGEIOLATCH, SOS_SCHEDULER_YIELD
Execution plan dissection, Query Store plan forcing, and missing index analysis
Extended Events session design with measured collection overhead
TempDB, memory grants, MAXDOP, and cost threshold of parallelism tuning
Always On Availability Groups design, implementation, and scheduled failover exercises
SQL Server Agent job monitoring, alerting, and runbook automation
FULL / DIFF / LOG backup strategy with Ola Hallengren scripts
Columnstore index and In-Memory OLTP (Hekaton) optimization

Performance decision record

Evidence before change
Query Store historyBaseline
Waits and blockingCausal evidence
Plans and indexesChange candidates
Workload replayValidation

Measured

Before and after

Reversible

Rollback defined

Illustrative Query Optimization Scenarios

Representative production patterns with example fixes and non-customer metrics.

Index Design
Illustrative scenario

Evidence to collect

Actual execution plan, reads, writes, index usage, and workload frequency

Decision path

Test a covering, filtered, consolidated, or removed index against representative load

Row-by-row Work
Illustrative scenario

Evidence to collect

Query duration, execution count, round trips, locking, and plan operators

Decision path

Evaluate a set-based rewrite and validate semantics, concurrency, and resource use

Plan Sensitivity
Illustrative scenario

Evidence to collect

Query Store plan history, parameter distribution, estimates, and regressions

Decision path

Choose a version-appropriate mitigation and retain rollback and monitoring thresholds

Pre-Migration Assessment

On-prem SQL Server → Azure SQL MI

REFERENCE
Instance and database inventoryRequired
Target compatibility assessmentRequired
Data movement and rollback rehearsalMeasured
Application validation and cutover approvalExplicit

Cutover interruption: measured during rehearsal, not promised generically

Move to Azure SQL
With a Controlled Cutover

SQL Server migrations fail when the runbook is written on cutover day. We run compatibility assessments in advance, resolve blocking issues, and use Always On AG log-chain sync or another suitable transfer method. Rehearsals establish the application pause, validation gates, and rollback criteria for the workload.

Azure Migrate SQL Discovery & Compatibility Assessment
Always On AG log-chain sync or Azure DMS continuous mode
Validated rollback plan signed off before every cutover window
Azure SQL MI, Azure SQL DB, or SQL on Azure VMs
AWS RDS for SQL Server migration support

When Production
Goes Down

Reactive incident response, SQL Server triage, severity-based escalation, and recovery handoff are the focus of the dedicated SQL Server Support service. Coverage and response targets depend on the selected agreement.

See SQL Server Support & SLA detail
Illustrative incident runbookTiming measured per incident
1
DetectAlert qualified

Confirm impact, affected workload, recent changes, and telemetry quality

2
TriageDBRE engaged

Collect waits, blocking, plans, error logs, and availability state

3
StabilizeRisk contained

Choose the least risky authorized action and preserve diagnostic evidence

4
ValidateService checked

Verify application behavior, database health, and recovery criteria

5
LearnFollow-up owned

Record cause, contributing factors, corrective work, and runbook changes

Always On.
Engineered That Way.

We design and operate Always On Availability Groups around tested failover, restore, and routing procedures. Availability is assessed against agreed recovery objectives and validated through scheduled failover exercises.

Always On AG with synchronous + async replicas
Failover Cluster Instance (FCI) on Windows & Linux
Readable secondary offloading for reporting
Automated failover with health policy tuning
Disaster recovery across regions or clouds
Scheduled failover exercises with findings and runbook updates
Reference HA validationTopology is workload-specific

Measured

RTO

Measured

RPO

Tested

Failover path

Primary replica role
WRITEVALIDATED
Synchronous secondary role
HAVALIDATED
Asynchronous secondary role
DRVALIDATED

Illustrative distributed handoff model

Coverage is plan-defined
Region ARegion BRegion CRegion DRegion ERegion FRegion GRegion H
Region ARegion BRegion CRegion DRegion ERegion FRegion GRegion H

Engineers
For Distributed Coverage

Distributed coverage can route incidents to SQL Server engineers under the response terms in the selected support agreement. Dedicated operational ownership is covered by the Remote DBA and retained DBRE service.

Explore Remote DBA & retained DBRE

By plan

Coverage window

Scoped

Response targets

Defined

Escalation path

DBA Experience. DBRE Discipline.

Database SRE and DBRE methods add service objectives, automation, observability, controlled change, recovery tests, and incident learning to the established SQL Server DBA vocabulary buyers already use.

SQL Server-Specific Expertise

Engineers focused on SQL Server execution plans, Query Store, Always On, Azure SQL, and day-two operations.

Systematic Tuning Framework

Wait-stat analysis, execution plan dissection, and Query Store establish a baseline and verify workload-specific changes.

Recovery-Objective Design

HA design, failover exercises, health-policy tuning, and restore tests are aligned to agreed RTO, RPO, workload, and failure-domain requirements.

Contract-Defined Response

Support agreements can define severity-based response targets, measurement, coverage, escalation, exclusions, and incident handoff. The signed service plan is authoritative.

Cloud-Native & Hybrid

Azure SQL MI, Azure SQL DB, SQL on Azure VMs, AWS RDS, and Kubernetes-based SQL Server - we architect for the deployment model your workload actually needs.

Security-Aware Engineering

Security reviews examine authentication, privileges, encryption, auditing, patch state, backup protection, and requested control mappings within the agreed scope.

Illustrative SQL Server engagement outcomes

Representative scenarios, not customer testimonials. Actual results depend on workload, scale, and environment.

Illustrative scenario

Query regression

Which plan or workload change caused the regression?

Decision-ready output

Baseline, causal evidence, tested change, and rollback

Illustrative scenario

Always On design

Which failures must the topology survive, and how will the application reconnect?

Decision-ready output

Failure matrix, topology decision, and rehearsal plan

Illustrative scenario

Azure SQL migration

Which instance features or dependencies block the proposed target?

Decision-ready output

Compatibility matrix, target decision, and cutover runbook

Illustrative scenario

Retained DBRE

Which operational tasks and decisions should move out of the application team?

Decision-ready output

Ownership matrix, service objectives, alerts, and runbooks

Illustrative scenario

Incident support

What evidence and access are required before the next production incident?

Decision-ready output

Triage checklist, escalation path, and recovery evidence

Illustrative scenario

Analytics isolation

Should reporting be tuned in place, offloaded, or moved to an analytical platform?

Decision-ready output

Workload comparison, trade-offs, and validated recommendation

Illustrative scenario

Query regression

Which plan or workload change caused the regression?

Decision-ready output

Baseline, causal evidence, tested change, and rollback

Illustrative scenario

Always On design

Which failures must the topology survive, and how will the application reconnect?

Decision-ready output

Failure matrix, topology decision, and rehearsal plan

Illustrative scenario

Azure SQL migration

Which instance features or dependencies block the proposed target?

Decision-ready output

Compatibility matrix, target decision, and cutover runbook

Illustrative scenario

Retained DBRE

Which operational tasks and decisions should move out of the application team?

Decision-ready output

Ownership matrix, service objectives, alerts, and runbooks

Illustrative scenario

Incident support

What evidence and access are required before the next production incident?

Decision-ready output

Triage checklist, escalation path, and recovery evidence

Illustrative scenario

Analytics isolation

Should reporting be tuned in place, offloaded, or moved to an analytical platform?

Decision-ready output

Workload comparison, trade-offs, and validated recommendation

The Full SQL Server Ecosystem

We cover the entire Microsoft data platform - from on-prem SQL Server to every Azure SQL flavour.

SQL Server supported releases
SQL Server supported releases
Azure SQL Database
Azure SQL Database
Azure SQL Managed Instance
Azure SQL Managed Instance
Always On AG
SSRS / SSAS / SSIS
SQL Server on Linux
SQL Server on Linux
SQL Server Containers
SQL Server Containers
DBAtools / Ola Scripts
AWS RDS for SQL Server
AWS RDS for SQL Server
SQL Server on Kubernetes
SQL Server on Kubernetes
Query Store / DMVs
Extended Events (XE Sessions)

Specialized SQL Server Services

Each service is its own craft. Pick the one you need - or let us assemble a program.

How We Work Together

Three engagement models - pick the one that fits where you are right now.

Fixed Scope

SQL Server Assessment

Scope-defined

A bounded review of the agreed SQL Server environment, with evidence, performance or reliability findings, risks, and a prioritized remediation roadmap. Timing and commercial terms follow the confirmed scope.

Wait-stats & execution plan analysis
Index and query store review
HA/DR architecture gap report
Written remediation roadmap
Project-Based

Migration or Tuning Project

Defined in proposal

A defined engagement for a version upgrade, cloud migration, availability design, or performance program. The proposal records deliverables, assumptions, timeline, validation, rollback, and handoff.

Defined deliverables and assumptions
Agreed progress cadence
Post-project handover documentation
Scope-specific stabilization plan
Ongoing

Retained DBRE & DBA

Contract-defined

Assign recurring production operations to a retained DBRE or remote DBA scope. Reactive incident coverage, maintenance ownership, service objectives, access, and escalation are written into the selected agreement.

Operational ownership → Remote DBA
Incident coverage → SQL Server Support
Maintenance and patching windows
Documented ownership and escalation

Engagements start by confirming workload, access, risk, deliverables, and ownership. Book a scoping call →

SQL Server Services FAQ

Direct answers about scope, platforms, migration interruption, and engagement boundaries.

How does this hub relate to SQL Server support and remote DBA services?

This hub explains the complete SQL Server practice. Support is for reactive incident response under the selected agreement's severity and coverage terms. Remote DBA, also described as retained DBRE or offsite DBA, is for ongoing operational ownership, preventive work, runbooks, and engineering collaboration.

Which SQL Server versions and deployment models can be assessed?

JusDB assesses self-managed SQL Server on Windows or Linux, SQL Server on virtual machines, Azure SQL Database, Azure SQL Managed Instance, and Amazon RDS for SQL Server. Version, edition, feature, lifecycle, and platform eligibility are confirmed during scoping rather than assumed from a generic support list.

Can a SQL Server migration minimize downtime?

Often, but the achievable interruption depends on the source and target, version path, database size, change rate, application behavior, networking, and selected data-movement method. Rehearsals measure the cutover window and establish validation gates and rollback criteria; no universal zero-downtime promise is made.

How is an engagement started?

Scope, access, security constraints, workload evidence, ownership boundaries, and deliverables are confirmed first. The resulting engagement plan records the review schedule, change authorization, validation method, and any contract-defined coverage or response targets.

Do you work with on-premises, cloud, and hybrid SQL Server?

Yes. The practice covers self-managed SQL Server, virtualized estates, Azure SQL targets, Amazon RDS for SQL Server, and hybrid topologies. Recommendations account for the operational and feature differences between a full SQL Server instance and each managed service.

Ready to Scale Your
SQL Server?

Get a workload-specific review of your SQL Server query plans, availability design, cloud architecture, and operational risks.

Evidence first

Workload-specific review

Scoped access

Security boundaries defined

Clear handoff

Runbooks and ownership

Technical review and primary sources

SQL Server service guidance checked against Microsoft documentation

Review scope: Service selection, supported deployment models, Query Store diagnostics, Always On availability, migration, backup and recovery, and production ownership boundaries. Guidance is checked against primary Microsoft documentation; recommendations, schedules, response targets, and outcomes remain workload-, version-, topology-, access-, and contract-specific.

Technically reviewed by the JusDB Database Reliability Engineering team. Last reviewed: . See the team and roles.

Technical source and review method

Microsoft SQL Server information, checked against primary documentation

JusDB reviews technology-specific claims against the vendor or project's official documentation. Performance examples without a linked case study are labeled illustrative; actual results depend on workload, data model, version, topology, infrastructure, and test method.

Technically reviewed by the JusDB Database Reliability Engineering team on .