Database Administrator skills and qualifications

Updated 17 September 2026 · 3 min read

Database adverts list platforms, but the skills behind them are consistent across engines. Employers want someone who can design sound structures, keep queries fast as data grows, control access properly, and bring a system back when it fails. This guide sets out what those skills look like in practice and the evidence that proves each one.

How this guide was made

Written for this site with AI assistance, then checked automatically before publishing. The topic table, sample questions, worked examples and study plan are generated from this site’s question bank: each worked example is recalculated by separate code, and each sample answer says where it came from.

The guide deliberately states no salaries, grades, pass marks or exam dates. Those change, and they could not be checked here, so take them from the advert itself.

This site is independent and is not affiliated with MIFOTRA or any employer.

Core database skills

Writing and reviewing SQL, including joins, aggregation, subqueries and set operations.
Designing tables, keys and relationships, and normalising sensibly.
Creating and maintaining indexes, and reading execution plans.
Managing transactions, isolation levels and concurrency problems.
Installing, configuring and patching database servers.
Migrating data between systems without losing or corrupting it.

Where to spend your study time

The suggested emphasis reflects what this position works with day to day. It is a study guide, not a published exam blueprint.

Area	Suggested emphasis	Questions in the bank	Practise
Software development	36%	378	In the full bank
Cybersecurity	18%	541	Security
Hardware and operating systems	18%	961	Hardware & OS
Linux command line	18%	360	In the full bank
Cloud and emerging technology	9%	188	In the full bank

Backup, recovery and availability

This is the part employers worry about most: designing backup schedules around recovery objectives, verifying restores, configuring replication or clustering, and planning maintenance that does not surprise anyone. Candidates who can describe a recovery they performed have an immediate advantage.

Security and compliance

Administrators control access to the most sensitive data an organisation holds. Skills include user and role management, least privilege, encryption in transit and at rest, auditing sensitive access, and masking or limiting data in non-production environments. Where personal data is involved, understanding the organisation's legal obligations is part of the job.

Monitoring and capacity

Employers expect administrators to know what normal looks like: query response times, connection counts, space growth, and the alerts that fire before users notice. Capacity planning follows from that history rather than from guesswork.

Automation and scripting

Routine work should be scripted: backups, index maintenance, health checks, user provisioning and reports. Shell scripting, PowerShell or Python all appear in adverts, and automation is what lets one administrator look after many databases without mistakes.

Working with developers

Most database problems arrive through an application, so the useful administrator is the one developers will talk to. That means reviewing schema changes before they ship rather than after, explaining why a query is slow in terms a developer can act on, and offering a faster way to write it instead of only refusing the slow one. Administrators who become known for blocking work get told about changes last, which is precisely when it is too late to help.

Documentation and handover

Write down what only you know: how each instance is configured, where the backups go, what the restore steps are, which jobs run overnight and what to do when one of them fails. The test of this is simple and worth applying honestly. If you were unreachable for a week, could a competent colleague keep the databases running from what you have written?

Showing the skills

Describe the systems you have run by size and criticality, the recoveries you have performed, the performance problems you have solved and by how much, and the security controls you put in place. Where the data is confidential, describe the shape of the work rather than the details.

Open adverts for this position

No open Database Administrator advert matched when the jobs board was last checked. It is refreshed every morning.

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Common questions

Do administrators need to write application code?

Rarely, but reading it helps enormously, because most performance problems originate in the application rather than the engine.

How important is cloud database experience?

Increasingly important. Managed database services change some duties and remove others, but design, tuning, security and recovery planning remain yours.