Database Management Technical Skills — page 1

1 / 6

Database

Management

Technical

Skills

SQL

Query

Languages

skills

Database

Design

Data

Modeling

skills

Relational

Database

Platforms

skills

ANSI

SQL

and

vendor

dialects

(

SQL

pgSQL

SQL

)

Joins

subqueries

set

operations

and

common

table

expressions

Window

functions

and

analytic

queries

Recursive

queries

and

hierarchical

data

traversal

Stored

procedures

user

defined

functions

and

triggers

Execution

plans

and

query

cost

analysis

Dynamic

SQL

parameterized

queries

and

SQL

injection

prevention

Transaction

control

—

COMMIT

ROLLBACK

savepoints

Conceptual

logical

and

physical

data

modeling

Entity

relationship

diagrams

(

Crow

foot

Chen

notation

)

Normalization

BCNF

and

controlled

denormalization

Dimensional

modeling

—

star

and

snowflake

schemas

Slowly

changing

dimensions

(

Types

1, 2,

and

Data

Vault

2.0 —

hubs

links

and

satellites

Keys

constraints

and

referential

integrity

enforcement

Schema

versioning

and

migration

strategy

PostgreSQL

—

extensions

roles

logical

replication

Microsoft

SQL

Server

—

Agent

jobs

Always

SQL

Oracle

Database

—

RMAN

ASM

Enterprise

Manager

MySQL

MariaDB

—

InnoDB

binary

logs

replication

IBM

—

pureScale

HADR

storage

groups

SQLite

—

embedded

storage

WAL

mode

file

based

design

Amazon

Aurora

—

cluster

architecture

reader

endpoints

2 / 6

Database Management Technical Skills — page 3

NoSQL

Specialized

Data

Stores

skills

Document

stores

—

MongoDB

Couchbase

Wide

column

stores

—

Apache

Cassandra

ScyllaDB

HBase

Key

value

and

caching

—

Redis

Valkey

Memcached

Graph

databases

—

Neo

Amazon

Neptune

Cypher

queries

engines

—

Elasticsearch

OpenSearch

Apache

Solr

Time

series

—

InfluxDB

TimescaleDB

Prometheus

TSDB

Vector

stores

—

pgvector

Pinecone

Milvus

Cloud

native

stores

—

DynamoDB

Cosmos

Firestore

3 / 6

Database Management Technical Skills — page 4

PERFO RMANCE

O PERAT IO NS

RELIAB ILIT Y

Performance

Tuning

Optimization

skills

Database

Administration

Operations

skills

Backup

Recovery

High

Availability

skills

Security

Governance

Compliance

skills

Index

design

—

tree

hash

GIN

GiST

BRIN

Composite

covering

partial

and

functional

indexes

Execution

plan

reading

—

EXPLAIN

ANALYZE

SHOWPLAN

Query

rewriting

and

predicate

pushdown

Table

partitioning

(

range

list

hash

)

and

horizontal

sharding

Statistics

maintenance

and

bloat

control

(

VACUUM

ANALYZE

)

Locking

blocking

and

deadlock

diagnosis

Transaction

isolation

levels

and

MVCC

behaviour

Connection

pooling

—

PgBouncer

HikariCP

ProxySQL

Installation

patching

and

major

version

upgrades

Configuration

tuning

—

memory

WAL

planner

parameters

User

role

and

privilege

management

Storage

and

capacity

planning

Maintenance

jobs

and

index

rebuild

reorganize

Monitoring

and

alerting

—

Prometheus

Grafana

Datadog

Slow

query

logging

and

log

analysis

Environment

promotion

—

development

staging

production

Full

differential

and

incremental

backup

strategies

Write

ahead

log

archiving

and

continuous

archiving

Point

time

recovery

(

PITR

)

and

restore

validation

Streaming

and

logical

replication

topologies

Synchronous

asynchronous

replication

and

lag

monitoring

Automated

failover

and

clustering

—

Patroni

Always

RAC

Galera

Disaster

recovery

runbooks

and

failover

drills

RPO

RTO

definition

documentation

and

testing

Authentication

and

authorization

models

—

RBAC

ABAC

Row

level

security

and

column

level

masking

Encryption

rest

and

transit

—

TDE

TLS

KMS

Secrets

management

—

HashiCorp

Vault

AWS

Secrets

Manager

Audit

logging

and

database

activity

monitoring

Regulatory

data

handling

—

GDPR

HIPAA

PCI

DSS

SOC

Data

retention

archiving

and

purge

policies

Vulnerability

management

and

patch

cadence

4 / 6

Database Management Technical Skills — page 5

CLO UD

AUT O MAT IO N

MO DERN

DATA

PLAT FO RMS

Cloud

Managed

Database

Services

skills

Data

Integration

ETL

Pipelines

skills

Scripting

Automation

DevOps

skills

AWS

—

RDS

Aurora

DynamoDB

Redshift

Azure

—

SQL

Database

Cosmos

Synapse

Flexible

Server

Google

Cloud

—

Cloud

SQL

Spanner

BigQuery

Firestore

Snowflake

and

Databricks

SQL

Warehouses

MongoDB

Atlas

and

Redis

Cloud

provisioning

Infrastructure

code

—

Terraform

CloudFormation

Pulumi

Containerized

databases

—

Docker

Kubernetes

operators

Serverless

and

autoscaling

databases

—

Neon

PlanetScale

Aurora

Serverless

ETL

ELT

pipeline

design

and

trade

offs

Change

Data

Capture

—

Debezium

native

CDC

streams

Batch

orchestration

—

Apache

Airflow

dbt

Dagster

Streaming

ingestion

—

Apache

Kafka

Kinesis

Pub

Sub

Warehouse

patterns

and

incremental

merges

Data

quality

checks

reconciliation

and

alerting

Metadata

management

and

lineage

—

OpenLineage

Alation

Collibra

Python

database

libraries

—

psycopg

SQLAlchemy

asyncpg

Shell

and

PowerShell

automation

for

routine

DBA

tasks

Database

—

Flyway

Liquibase

Alembic

Migration

pipelines

integrated

with

application

releases

ORM

usage

and

query

review

—

Hibernate

Core

Prisma

Automated

schema

and

data

testing

—

pytest

tSQLt

Observability

integration

—

OpenTelemetry

Prometheus

exporters

5 / 6

Database Management Technical Skills — page 6

Analytics

Big

Data

Warehousing

skills

Client

Tools

Utilities

skills

Apache

Spark

SQL

and

PySpark

transformations

Distributed

query

engines

—

Trino

Presto

Hive

Columnar

and

serialization

formats

—

Parquet

ORC

Avro

Lakehouse

table

formats

—

Delta

Lake

Apache

Iceberg

Hudi

OLAP

engines

—

ClickHouse

Apache

Druid

Apache

Doris

Semantic

and

metric

modeling

with

dbt

connectivity

and

query

performance

—

Power

Tableau

Looker

Universal

clients

—

DBeaver

DataGrip

Navicat

Command

line

clients

—

psql

mysql

mongosh

sqlcmd

SQL

Server

Management

Studio

and

Azure

Data

Studio

Oracle

SQL

Developer

and

TOAD

MySQL

Workbench

and

phpMyAdmin

Schema

diff

and

data

comparison

tooling

Benchmarking

and

load

generation

—

pgbench

sysbench

HammerDB

6 / 6

Database Management Technical Skills

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