# Database Service and Management Services

**URL:** https://securesys.com.tr/en/services/database-service-dba-management-services

The majority of enterprise applications run on database systems. ERP, CRM, finance applications, web platforms, mobile applications, reporting systems, business intelligence solutions, e-commerce infrastructures and custom software all require secure, high-performance and continuously available database infrastructures.

Performance problems in database systems, incorrect index usage, disk capacity issues, replication errors, inadequate backup policies or authorization problems can directly affect business processes.

SecureSys **Database Service and Management Services** provides end-to-end management of the installation, administration, monitoring, performance optimization, backup, replication, high availability, migration and security processes of MSSQL, [PostgreSQL](/en/services/postgresql-installation-maintenance-support-service), Oracle, MySQL, MariaDB and other database technologies.

Our approach:

**Database + DBA + Monitoring + Performance + Backup + Security + High Availability + Disaster Recovery**

is based on addressing these components together.

The goal is not merely to keep the database service running; it is to make the database infrastructure secure, performant, redundant, observable and sustainable.

### What Is a Database Service?

A Database Service is a managed service model covering the installation, operation and continuous support of an organization's database infrastructure by an expert team.

The service can cover;

- database installation,
- configuration,
- user management,
- performance tracking,
- SQL tuning,
- backup,
- restore,
- replication,
- high availability,
- patch management,
- migration,
- security hardening

processes.

This model is particularly valuable for organizations that do not maintain a large in-house DBA team but need access to expert database operations support.

### What Is a DBA Service?

DBA is the abbreviation for Database Administrator.

A DBA service is an expert service that carries out the technical administration of database systems.

The DBA team manages;

- database performance,
- user privileges,
- backup,
- replication,
- storage,
- index,
- transaction log,
- error log,
- capacity

and other critical components.

The SecureSys DBA Service can be delivered on a periodic, project-based or managed service model according to the organization's needs.

### Managed Database Service

Managed Database is a service model in which an organization's database operations are continuously managed by an expert team.

Within the SecureSys Managed Database service;

- daily database checks,
- performance monitoring,
- backup verification,
- replication monitoring,
- user management,
- patching,
- maintenance,
- troubleshooting

processes can be run centrally.

### Database Installation Service

Installing a new database is not simply a matter of loading the database software onto a server.

Prior to installation;

- application type,
- number of users,
- transaction intensity,
- database size,
- storage,
- memory,
- CPU,
- network,
- backup,
- HA requirements

should be evaluated.

SecureSys can design the appropriate database architecture based on this analysis.

### Database Instance Management

More than one database instance may run on a single physical or virtual server.

In instance management;

- memory allocation,
- CPU,
- connection,
- storage,
- backup,
- security

checks can be performed.

### Microsoft SQL Server Management

Microsoft SQL Server is one of the most widely used relational database platforms in enterprise applications.

Within SecureSys MSSQL services;

- SQL Server installation,
- instance configuration,
- database creation,
- user management,
- backup,
- restore,
- SQL Agent,
- Always On,
- replication,
- performance tuning

operations can be carried out.

### MSSQL DBA Service

With the SecureSys MSSQL DBA service, the daily operations of SQL Server environments can be managed.

The service can track;

- database health,
- index,
- statistics,
- transaction log,
- SQL Agent jobs,
- backup,
- disk capacity,
- availability

items.

### SQL Server Maintenance

Regular maintenance of SQL Server systems is important for both performance and data integrity.

Maintenance can include;

- index maintenance,
- statistics update,
- integrity check,
- database backup,
- transaction log checks

activities.

### SQL Server Performance Tuning

MSSQL performance problems may originate from;

- poorly written SQL queries,
- missing indexes,
- high disk latency,
- memory pressure,
- blocking,
- deadlocks

and similar causes.

SecureSys can analyze these components during SQL Server Performance Tuning work.

### PostgreSQL Management

PostgreSQL is one of the most powerful open source database platforms in widespread enterprise use.

Within SecureSys PostgreSQL services;

- PostgreSQL installation,
- role management,
- database configuration,
- backup,
- replication,
- tuning,
- monitoring,
- upgrade

operations can be carried out.

### PostgreSQL DBA Service

The PostgreSQL DBA service can cover;

- query performance,
- connection management,
- index,
- vacuum,
- replication,
- storage,
- log analysis

processes.

### Oracle Database Management

Oracle is one of the database platforms most widely used in large-scale and mission-critical enterprise applications.

Within SecureSys Oracle services;

- database installation,
- tablespace management,
- user management,
- backup,
- restore,
- performance,
- patch,
- high availability

operations can be supported.

### Oracle DBA Service

In Oracle DBA operations;

- instance health,
- tablespace,
- session,
- performance,
- listener,
- backup,
- archive log

processes can be tracked regularly.

### MySQL Management

MySQL is frequently used in web applications, API systems and various enterprise software.

SecureSys MySQL services can cover;

- install,
- configuration,
- backup,
- replication,
- monitoring,
- performance tuning,
- security

processes.

### MariaDB Management

In environments running MariaDB, installation, backup, replication and performance operations can likewise be managed centrally.

### Multi-Database Management

Large organizations are not expected to rely on a single database technology.

For example;

- ERP → MSSQL,
- web platform → PostgreSQL,
- application → MySQL,
- critical finance system → Oracle

may be used.

SecureSys can support the management of different database technologies under a single operating model.

### Database Monitoring

Database monitoring provides continuous tracking of the performance and availability status of database systems.

Parameters that can be monitored;

- CPU,
- memory,
- storage,
- connection,
- active session,
- query duration,
- lock,
- deadlock,
- backup,
- replication

can be configured.

### 24/7 Database Monitoring

Detecting problems quickly is important in critical database systems.

Depending on the service model, SecureSys can include databases in a 24/7 monitoring infrastructure.

For example;

- database down,
- high CPU,
- disk full,
- replication failure,
- backup failure,
- connection saturation

conditions can raise alarms.

### Database Health Check

Within the SecureSys **Database Health Check** service, the overall health of the existing database infrastructure is analyzed.

The assessment can evaluate;

- version,
- configuration,
- performance,
- backup,
- replication,
- storage,
- security,
- user permissions

areas.

### Database Performance Tuning

Performance problems are among the most common issues in database systems.

A performance problem does not stem from insufficient hardware alone.

The issue may originate from;

- slow SQL queries,
- missing indexes,
- incorrect execution plans,
- connection overload,
- blocking,
- I/O

sources.

SecureSys analyzes these layers together during database tuning work.

### SQL Query Optimization

Slow-running SQL queries can directly affect application performance.

During SecureSys SQL tuning work;

- execution plan,
- join,
- filter,
- subquery,
- index,
- full table scan

elements can be analyzed.

### Execution Plan Analysis

The database engine determines how a query will be executed through the execution plan.

An incorrect execution plan can cause high CPU and disk usage.

SecureSys can identify performance bottlenecks through query plan analysis.

### Index Optimization

Indexes can improve query performance, but incorrect or excessive indexes place additional load on the database.

SecureSys can perform;

- missing index,
- unused index,
- duplicate index,
- fragmented index

analyses.

### Index Fragmentation

Intensive data modifications can cause index fragmentation.

This condition can degrade query performance.

Index reorganize or rebuild operations can be applied through maintenance policies appropriate to the platform.

### Statistics Management

The database engine query optimizer makes its decisions based on statistics data.

Out-of-date statistics can produce incorrect execution plans.

For this reason, statistics update processes must be managed regularly.

### Lock and Blocking Analysis

Blocking can occur when one transaction locks a resource that another operation needs.

Prolonged blocking can cause slowdowns or timeout errors in applications.

SecureSys can identify the source of the problem through blocking analysis.

### Deadlock Analysis

A deadlock can occur when two or more transactions wait for resources held by one another.

By analyzing deadlock records, SecureSys can produce improvement recommendations on;

- SQL queries,
- transaction ordering,
- application behavior

topics.

### Database Connection Management

The connections that applications open to the database must be managed correctly.

Too many active connections can cause;

- memory,
- CPU,
- connection pool

problems.

SecureSys can analyze connection usage.

### Connection Pool

Modern applications can manage database connections through a connection pool.

Incorrect pool settings can cause connection saturation on the database.

### Transaction Management

Transactions left open for long periods can cause;

- blocking,
- transaction log growth,
- storage

problems.

SecureSys can analyze transaction usage.

### Transaction Log Management

Correct management of transaction log files is critical, particularly on platforms such as MSSQL.

Uncontrolled growth of the log file can fill the disk.

SecureSys can assess;

- recovery model,
- log backup,
- file growth,
- log reuse

conditions.

### Database Storage Management

One of the key components of database performance is the storage infrastructure.

SecureSys can analyze;

- disk latency,
- IOPS,
- throughput,
- storage capacity,
- growth

data.

### Database Capacity Planning

The data volume of databases grows over time.

Without capacity planning, disks can fill up or performance problems can arise.

Using;

- current database size,
- monthly growth rate,
- transaction log,
- backup size

data, SecureSys can build a capacity projection.

### Database Backup

Database backup is the fundamental component of a data protection strategy.

Depending on the platform, SecureSys can define;

- full backup,
- differential backup,
- incremental backup,
- transaction log backup

policies.

### Database Restore

Restoring is as important as taking the backup.

Restore processes can be tested with;

- database recovery,
- point-in-time recovery,
- alternate server restore

scenarios.

### Point-in-Time Recovery

With Point-in-Time Recovery, a database can be returned to a specific date and time.

This capability can provide a significant advantage in cases of accidental data deletion or application errors.

### Database Restore Testing

The existence of a backup file is not sufficient on its own.

Periodic restore tests should be performed to verify that the backup is genuinely usable.

### Immutable Database Backup

Critical database backups can be held on immutable storage against ransomware risk.

This structure can prevent backup files from being deleted or modified for a defined period.

### Cold Backup

Copying critical database data to a [Cold Backup](/en/services/cold-backup-immutable-backup-data-protection-services) environment isolated from production can provide an additional layer of security.

Example:

**Database → Online Backup → Immutable Backup → Cold Backup**

### Database Replication

Replication enables data to be copied between different database systems.

Replication can be used for;

- high availability,
- disaster recovery,
- reporting,
- read scaling

purposes.

### Synchronous Replication

In the synchronous replication model, data is written to primary and secondary systems synchronously.

It can be considered where low RPO targets apply.

### Asynchronous Replication

Asynchronous replication is more commonly used across remote locations.

Data can be transferred from the primary system to the secondary system with a certain delay.

### Read Replica

In read-intensive applications, read queries can be directed to replica systems.

This approach can reduce the load on the primary database.

### Database High Availability

Running critical database systems on a single server creates a risk to service continuity.

SecureSys can evaluate;

- cluster,
- replication,
- availability group,
- standby,
- failover

architectures.

### MSSQL Always On

In SQL Server environments, Always On technologies can be used for high availability and Disaster Recovery purposes.

SecureSys can support the deployment and management of;

- Availability Group,
- Replica,
- Listener,
- Failover

structures.

### PostgreSQL High Availability

In PostgreSQL environments;

- streaming replication,
- standby,
- load balancer,
- automatic failover

architectures can be built.

### Oracle High Availability

In Oracle environments, standby or high availability architectures can be evaluated according to critical requirements.

### Database Cluster

Database cluster structures can help maintain service continuity when a single node fails.

In cluster design;

- node,
- storage,
- network,
- quorum,
- failover

components must be evaluated together.

### Automatic Failover

If the primary database service becomes unavailable, the secondary node can be brought online automatically.

This process must be tested in a controlled manner.

### Failover Testing

Periodic failover tests can be run to verify that the High Availability structure genuinely works.

### Database Disaster Recovery

Database systems are among the most critical components of a [Disaster Recovery Center](/en/services/disaster-recovery-center-draas-services) architecture.

SecureSys can build a;

**Primary Database → Replication → DR Database**

architecture.

### Difference Between Database DR and Backup

Replication is not backup.

If data is accidentally deleted on the primary database, that change can be propagated to the replica system as well.

For this reason;

**Replication + Backup + Immutable/Cold Copy**

should be used together.

### RPO and RTO

In Database Disaster Recovery design;

- Recovery Point Objective,
- Recovery Time Objective

targets must be defined.

These targets directly shape the replication and backup architecture.

### Database Migration

Moving existing database systems to a new server, to the cloud or to a different platform must be carried out in a controlled manner.

In migration projects, SecureSys can apply the;

**Assessment → Test → Migration → Validation → Cutover**

approach.

### Server-to-Server Database Migration

A database can be moved from an older server to new hardware or a virtual server environment.

### On-Premise to Cloud Database Migration

A database running in the corporate data center can be moved to a cloud environment.

Before the transition;

- latency,
- security,
- application connectivity,
- licensing,
- backup

should be analyzed.

### Cloud-to-On-Premise Database Migration

For reasons of cost, data sovereignty or performance, cloud database systems can be moved back into a private data center environment.

### Database Version Upgrade

Older database versions falling out of vendor support can create security and operational risk.

In version upgrade projects, SecureSys evaluates;

- application compatibility,
- driver,
- backup,
- test,
- rollback

scenarios.

### Database Patch Management

Security patches for database systems must be applied regularly.

However, applying patches to a production database without control can cause service outages.

SecureSys can apply the;

**Assessment → Backup → Test → Patch → Validation**

approach.

### Database Security

Database systems hold an organization's most critical data.

For this reason, security must be addressed at the;

- authentication,
- authorization,
- encryption,
- network,
- audit,
- monitoring

layers.

### Database Hardening

Within SecureSys Database Hardening, checks can be performed on;

- default accounts,
- unnecessary services,
- administrator access,
- insecure protocol,
- audit settings,
- password policy

items.

### Least Privilege

Database users should be granted only the privileges they actually need.

An application account holding DBA privileges can create a serious security risk.

### Role-Based Access Control

Database users can be managed on a role basis.

For example;

- DBA,
- Developer,
- Reporting,
- Application,
- Read-Only

roles can be defined.

### Database Administrator Security

Because DBA accounts hold elevated privileges, they must be protected with dedicated security policies.

### PAM Integration

Using [Privileged Access Management](/en/services/pam-mfa-solutions);

- DBA credentials,
- password rotation,
- session recording,
- access approval

processes can be managed centrally.

### Database Administration with MFA

MFA can be enforced on access to database management consoles where the platform supports it.

### Database Network Segmentation

Database servers should not be directly reachable from the user network or the internet.

SecureSys can position database systems within;

- Database VLAN,
- Private Subnet,
- Restricted Zone

boundaries.

### Red Network and Databases

Critical databases requiring high security can be operated inside a Red Network.

For example:

**Application Zone → Firewall → Red Database Zone**

architecture can be established.

### Air-Gapped Database

Critical database environments that must never reach the internet can be placed within an air-gapped network.

In such structures, patching and data transfer processes must be carried out under control.

### Database Encryption

Sensitive database data may need to be encrypted.

SecureSys can evaluate;

- encryption at rest,
- encryption in transit,
- encrypted backup

approaches.

### TLS Database Connection

Encrypting network traffic between the application and the database over TLS can improve data security.

### Transparent Data Encryption

On supported database platforms, TDE can be used to encrypt database files on disk.

### Database Audit

Recording critical operations performed on the database is important for both security and compliance.

Audit records can include;

- login,
- permission change,
- administrator operations,
- schema changes,
- critical data access

events.

### Database Activity Monitoring

[Database Activity Monitoring](/en/services/dam-database-activity-monitoring) solutions provide centralized monitoring of critical database activity.

SecureSys can integrate with DAM systems.

### Databases and SIEM Integration

Database security logs can be forwarded to the SIEM platform.

For example;

- failed login,
- administrator access,
- permission changes,
- security errors

can be analyzed by the SOC.

### Databases and 24/7 SOC

The SecureSys [24/7 SOC](/en/services/soc-7x24-monitoring-managed-soc-service) service can evaluate database security events alongside those from other systems.

For example:

**VPN Login → PAM Access → Database Administrator Login → Large Data Query**

events can be correlated.

### Database Threat Detection

Abnormal database behavior can be an indicator of attack.

For example;

- access at unexpected hours,
- high-volume data queries,
- large numbers of failed logins,
- new privileged accounts

events can be analyzed.

### Database Vulnerability Management

Security vulnerabilities in database platforms must be tracked regularly.

SecureSys can perform;

- version,
- patch,
- security configuration,
- CVE

analyses.

### Database Configuration Management

Standardizing database configurations improves operational sustainability.

For example;

- memory,
- connection,
- backup,
- logging,
- security

settings can be tied to corporate standards.

### Database Change Management

Changes made to a production database must be managed through a controlled process.

SecureSys can apply the;

**Plan → Backup → Change → Test → Validation**

approach.

### Database Maintenance Window

Patching, upgrades and intensive maintenance work can be scheduled within a defined maintenance window.

### Separating Production, Test and Development

Running production database systems at the same security level as test or development environments is not appropriate.

SecureSys can configure;

- Production,
- Test,
- Development

environments with separate network and privilege models.

### Database Clone

Copies of the production database can be created for test or development purposes.

However, transferring sensitive data into a development environment can create risk.

### Data Masking

If production data will be used in a test environment, personal or sensitive data can be masked.

SecureSys can evaluate data masking processes in suitable projects.

### Database Service Catalog

Different database services can be defined as standard services within the organization.

For example;

- PostgreSQL Standard,
- MSSQL Enterprise,
- MySQL Development,
- Oracle Critical

service packages can be created.

### Database Service Levels

Database services can be separated according to criticality levels.

#### Standard Database

Standard backup and monitoring.

#### Critical Database

High Availability plus lower RPO/RTO.

#### Enterprise Database

HA + DR + Immutable Backup + 24/7 Monitoring.

### Database as a Service Integration

The Database Service can be used together with a [DBaaS](/en/services/database-as-a-service-dbaas-managed-database) infrastructure.

When developer teams request a new database through the portal, the underlying DBA, backup and monitoring processes can be created automatically.

### Platform Engineering Integration

Through the Internal Developer Platform, a;

**Service Catalog → PostgreSQL → Database Provisioning**

model can be established.

### DevOps and Databases

In DevOps processes, database changes may also need to be included in version control and deployment pipelines.

### Database DevOps

Schema changes can be managed through;

- migration script,
- version control,
- CI/CD,
- approval

processes.

### Database as Code

Database provisioning and some configuration operations can be automated with an Infrastructure as Code approach.

### Database Configuration Automation

Applying standard database configurations through automation tools can reduce manual errors.

### Cloud Database Management

Database systems running in cloud environments also require DBA and security operations.

SecureSys can manage;

- cloud database monitoring,
- backup,
- network,
- security,
- cost

processes.

### Private Cloud Database

Database services can be built on the organization's private cloud infrastructure.

This structure can be considered by organizations with strong data sovereignty and control requirements.

### Hybrid Database Management

On-premise and cloud database systems can be managed under a single operating model.

### Database Cost Optimization

Database infrastructure can create significant cost, particularly in cloud environments.

SecureSys can deliver cost optimization by analyzing;

- CPU,
- RAM,
- storage,
- licensing,
- backup,
- idle resources

data.

### Database Right-Sizing

Oversized database servers create cost, while insufficient capacity creates performance problems.

With right-sizing, resources can be optimized against actual usage.

### Database Licence Optimization

On commercial database platforms in particular, licence costs can account for a substantial share of total cost.

Architectural optimization can be carried out by evaluating CPU, core and edition usage.

### Database Inventory Management

In large organizations, it is important to know centrally which database runs where.

The inventory can hold;

- database name,
- engine,
- version,
- server,
- application owner,
- criticality,
- backup,
- HA

information.

### Database Topology Documentation

Visual documentation of the database architecture makes operational management easier.

For example:

**Application → Primary Database → Replica → Backup → DR Database**

relationships can be shown.

### Database SLA

Service levels can be defined for managed database services.

Within the SLA;

- monitoring,
- incident response,
- backup,
- restore,
- DBA support,
- critical event

processes can be specified.

### 24/7 DBA Support

Problems in critical database systems can also occur outside working hours.

Depending on the service scope, SecureSys can offer a 24/7 DBA support model.

### Database Incident Management

When a database becomes unavailable, systematic incident management must be applied.

The process can proceed as;

**Detection → Analysis → Response → Recovery → Validation**

stages.

### Root Cause Analysis

Recurring database problems should not be addressed with temporary workarounds alone.

Through root cause analysis, SecureSys works to identify the underlying source of the problem.

### Database Reporting

Periodic database reports can include;

- availability,
- performance,
- backup,
- storage,
- replication,
- capacity,
- incidents

information.

### Executive Database Report

For senior management;

- critical risks,
- capacity requirements,
- service continuity,
- backup status,
- DR readiness

can be summarized.

### Database Service and ISO/IEC 27001

Database access control, logging, backup, change management and vulnerability management processes can support ISO/IEC 27001 information security controls.

### Databases and KVKK

In database systems holding personal data, security controls such as;

- access control,
- logging,
- encryption,
- backup,
- audit

must be managed correctly.

### Databases and GDPR

In database systems processing personal data, access privileges, data security and audit processes can be evaluated within a GDPR compliance approach.

### Databases and DORA

In the financial sector, the availability, backup and Disaster Recovery capabilities of critical database systems are important for operational resilience.

### Managed Database as a Service

The SecureSys Database Service can be converted into a continuously managed service model.

Within the service;

- DBA,
- monitoring,
- backup,
- performance,
- security,
- reporting

processes can be managed end to end.

### The SecureSys Database Service Process

#### \1. Database Inventory

Existing MSSQL, PostgreSQL, Oracle, MySQL and other systems are identified.

#### \2. Health Check

Performance, backup, capacity and security posture are analyzed.

#### \3. Architecture Assessment

HA, DR, storage and network architecture are reviewed.

#### \4. DBA Operations

Daily database administration processes are established.

#### \5. Performance Tuning

Slow query, index, lock and storage problems are analyzed.

#### \6. Backup

Backup and restore policies are validated.

#### \7. High Availability

An HA architecture is built for critical database systems.

#### \8. Disaster Recovery

DR is designed according to RPO/RTO targets.

#### \9. Security

Hardening, PAM, encryption and network segmentation are applied.

#### \10. Monitoring

Database platforms are brought into the central monitoring infrastructure.

#### \11. SOC Integration

Security logs are monitored by the SOC where required.

#### \12. Reporting and Improvement

Performance, capacity and risks are reported periodically.

### Why the SecureSys Database Service?

Database management is not an operation that requires SQL knowledge alone.

Genuine database continuity requires the;

**Database + System + Storage + Network + Backup + Security + Monitoring + Disaster Recovery**

layers to work together.

In its database services, SecureSys addresses DBA expertise together with infrastructure and cyber security capabilities.

This approach aims to move organizations away from a reactive model, where support is sought only when a performance problem appears, toward a database infrastructure that is continuously monitored, backed up and security-managed.

### Frequently Asked Questions

#### What is a Database Service?

It is the execution of database installation, administration, maintenance, performance, backup and security processes by an expert team.

#### What is a DBA service?

A DBA service is a specialist service providing the technical and operational management of databases.

#### Can MSSQL DBA services be provided?

Yes. SQL Server installation, maintenance, performance tuning, backup, Always On and monitoring services can be provided.

#### Can PostgreSQL DBA services be provided?

Yes. PostgreSQL installation, tuning, backup, replication and high availability processes can be managed.

#### Can Oracle database administration be provided?

Yes. Depending on project scope, support can be provided for Oracle DBA, backup, performance and patch operations.

#### Can databases be monitored 24/7?

Yes. Database availability, performance, backup, replication and capacity figures can be monitored 24/7.

#### How often should a database be backed up?

Backup frequency should be determined by the organization's RPO targets and the rate at which data changes.

#### What is Database High Availability?

It is an architecture that aims to keep the service running on an alternative node if one database node fails.

#### Can database systems be connected to the SOC?

Yes. Database audit and security logs can be forwarded to the SIEM and analyzed by the SOC.

#### Can a database run inside a Red Network?

Yes. Database systems requiring high security can be placed in a separate isolated network or inside a Red Network.

### Turn Your Database Infrastructure into a Continuously Managed Service with SecureSys

It is not enough for critical database systems merely to be running.

Slow queries, growing transaction log files, untested backups, out-of-date database versions, unmonitored DBA accounts and replication problems can, over time, directly affect an organization's critical business processes.

With SecureSys Database Service and Management Services, you can bring;

**MSSQL + PostgreSQL + Oracle + MySQL + DBA + Monitoring + Performance + Backup + HA + Security + DR**

processes together under a single management model.

**Request a Health Check for your existing database infrastructure, identify your performance and security risks, and move your database operations to a 24/7 managed service model.**