feat: database-administrator skill package v0.1.0

references/market.md

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+# Market evidence report — database-administrator
+
+Source: **56 real job ads** (JSearch API, countries: us 56), extracted into the MSSQL evidence store; as of 2026-07-10.
+This report contains extracted, aggregated facts only — no ad text is
+reproduced (copyright / platform terms).
+
+## Seniority distribution
+
+| Seniority | Ads | Share |
+|---|---|---|
+| mid | 39 | 70 % |
+| senior | 11 | 20 % |
+| lead | 4 | 7 % |
+| junior | 1 | 2 % |
+| n/a | 1 | 2 % |
+
+## Tools — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | Oracle | 20 | 36 % |
+| 2 | Microsoft SQL Server | 13 | 23 % |
+| 3 | SQL Server | 13 | 23 % |
+| 4 | PostgreSQL | 12 | 21 % |
+| 5 | MySQL | 8 | 14 % |
+| 6 | Oracle Database | 8 | 14 % |
+| 7 | AWS | 6 | 11 % |
+| 8 | AWS RDS | 6 | 11 % |
+| 9 | Azure | 5 | 9 % |
+| 10 | Microsoft Azure | 5 | 9 % |
+| 11 | SYBASE | 5 | 9 % |
+| 12 | Kubernetes | 4 | 7 % |
+| 13 | MongoDB | 4 | 7 % |
+| 14 | Python | 4 | 7 % |
+| 15 | SharePoint | 4 | 7 % |
+| 16 | Docker | 3 | 5 % |
+| 17 | Oracle Data Guard | 3 | 5 % |
+| 18 | Windows Server | 3 | 5 % |
+
+## Hard skills — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | database administration | 37 | 66 % |
+| 2 | performance tuning | 27 | 48 % |
+| 3 | data modeling | 22 | 39 % |
+| 4 | backup and recovery | 16 | 29 % |
+| 5 | disaster recovery | 16 | 29 % |
+| 6 | database design | 12 | 21 % |
+| 7 | data security | 10 | 18 % |
+| 8 | query optimization | 10 | 18 % |
+| 9 | troubleshooting | 10 | 18 % |
+| 10 | capacity planning | 9 | 16 % |
+| 11 | data migration | 9 | 16 % |
+| 12 | data analysis | 6 | 11 % |
+| 13 | data replication | 5 | 9 % |
+| 14 | performance monitoring | 5 | 9 % |
+| 15 | security implementation | 5 | 9 % |
+| 16 | data management | 4 | 7 % |
+| 17 | database development | 4 | 7 % |
+| 18 | database management | 4 | 7 % |
+| 19 | index maintenance | 4 | 7 % |
+| 20 | data architecture | 3 | 5 % |
+| 21 | data governance | 3 | 5 % |
+| 22 | data integration | 3 | 5 % |
+| 23 | database configuration | 3 | 5 % |
+| 24 | database installation | 3 | 5 % |
+| 25 | disaster recovery planning | 3 | 5 % |
+| 26 | performance analysis | 3 | 5 % |
+| 27 | performance optimization | 3 | 5 % |
+| 28 | pl/sql development | 3 | 5 % |
+| 29 | reporting | 3 | 5 % |
+| 30 | root cause analysis | 3 | 5 % |
+| 31 | schema design | 3 | 5 % |
+| 32 | security administration | 3 | 5 % |
+| 33 | sql database administration | 3 | 5 % |
+| 34 | sql development | 3 | 5 % |
+| 35 | sql query optimization | 3 | 5 % |
+| 36 | sql scripting | 3 | 5 % |
+
+## Methods — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | agile development | 4 | 7 % |
+| 2 | scrum | 4 | 7 % |
+| 3 | CI/CD pipelines | 3 | 5 % |
+
+## Responsibilities — full market ranking
+
+| # | Item | Ads | Share |
+|---|---|---|---|
+| 1 | database administration | 15 | 27 % |
+| 2 | database maintenance | 10 | 18 % |
+| 3 | database installation | 8 | 14 % |
+| 4 | performance tuning | 8 | 14 % |
+| 5 | security implementation | 8 | 14 % |
+| 6 | performance monitoring | 7 | 12 % |
+| 7 | troubleshooting | 6 | 11 % |
+| 8 | database monitoring | 5 | 9 % |
+| 9 | database configuration | 4 | 7 % |
+| 10 | documentation creation | 4 | 7 % |
+| 11 | documentation maintenance | 4 | 7 % |
+| 12 | policy implementation | 4 | 7 % |
+| 13 | security administration | 4 | 7 % |
+| 14 | user account management | 4 | 7 % |
+| 15 | capacity planning | 3 | 5 % |
+| 16 | data organization | 3 | 5 % |
+| 17 | database management | 3 | 5 % |
+| 18 | incident resolution | 3 | 5 % |
+| 19 | report generation | 3 | 5 % |
+| 20 | system monitoring | 3 | 5 % |
+| 21 | technical support | 3 | 5 % |
+
+## Regional breakdown
+
+> **Corpus note:** 56 relevant ads in total — below the 100-ad target for a fully reliable ranking. Percentages above should be read as indicative.
+
+### US (us)
+
+56 ads.
+
+**Top hard skills:**
+
+- database administration — 66 % (37 ads)
+- performance tuning — 48 % (27 ads)
+- data modeling — 39 % (22 ads)
+- backup and recovery — 29 % (16 ads)
+- disaster recovery — 29 % (16 ads)
+- database design — 21 % (12 ads)
+- data security — 18 % (10 ads)
+- query optimization — 18 % (10 ads)
+- troubleshooting — 18 % (10 ads)
+- capacity planning — 16 % (9 ads)
+
+**Top tools:**
+
+- Oracle — 36 % (20 ads)
+- Microsoft SQL Server — 23 % (13 ads)
+- SQL Server — 23 % (13 ads)
+- PostgreSQL — 21 % (12 ads)
+- MySQL — 14 % (8 ads)
+- Oracle Database — 14 % (8 ads)
+- AWS — 11 % (6 ads)
+- AWS RDS — 11 % (6 ads)
+- Azure — 9 % (5 ads)
+- Microsoft Azure — 9 % (5 ads)
+
+**Seniority:** mid 70 % · senior 20 % · lead 7 % · junior 2 % · n/a 2 %
+
+### UK (gb)
+
+**Insufficient evidence** — 0 ads (minimum for a regional ranking: 30). No ranking is reported for this region.
+
+### EU/DACH (de, at, ch, nl)
+
+**Insufficient evidence** — 0 ads (minimum for a regional ranking: 30). No ranking is reported for this region.
+
+
+## Job title variants in the market
+
+| Title | Ads |
+|---|---|
+| Database Administrator | 8 |
+| Database Administrator Jobs | 2 |
+| Senior Oracle Database Administrator | 2 |
+| Ab Initio Administrator | 1 |
+| Cloud Database Administrator with Security Clearance | 1 |
+| Data Administrator (DBA) | 1 |
+| Data Engineer / Database Administrator w/Top Secret Clearance | 1 |
+| Data Platform Lead / DBA Engineer with Security Clearance | 1 |
+| Database Administrator – Level III | 1 |
+| Database Administrator (DBA) | 1 |
+| Database Administrator (DBA) - Full-time | 1 |
+| Database Administrator (DBA) - Postgres - FULLY CLEARED with POLYGRAPH REQUIRED | 1 |
+| Database Administrator (Remote) | 1 |
+| Database Administrator 3 | 1 |
+| Database Administrator in Washington DC | 1 |
+| Database Administrator Level IV | 1 |
+| Database Administrator- Oracle SQL | 1 |
+| Database Administrator TS/SCI with Polygraph | 1 |
+| Database Administrator, Senior | 1 |
+| Database Administrator; DBA - TS​/SCI Polygraph | 1 |
+| Database Analyst(6669) | 1 |
+| Database Engineer / Administrator | 1 |
+| Database Server Administrator | 1 |
+| DB2 DBA | 1 |
+| Enterprise - Database Administrator - Maintain, Implement, Security | 1 |
+
+Methodology: entities extracted per ad ({hard_skills, tools, methods, responsibilities, seniority}), normalized, counted as DISTINCT ads per entity; report threshold ≥ 3 ads. Headline sections in skills.md/tools.md use the stricter ≥ 20 % threshold.