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Full Name
Gayan Lokumanna
Full Name
ACE Associate
Top Level Details
Job Role
Snr. Director Data Architecture
Company
Millennium I.T.E.S.P (Private) Limited
Country
Sri Lanka
Top Expertise
Database 23ai
Focus Area
Database
About Gayan
Skilled Data Technologist/Snr.Director/Consultant/Team Lead/Manager/DBA/Cloud Architect holding 3X Oracle Certified Master (OCM) & having 24+ years of technology experience including Oracle MAA, & Oracle Enterprise Manager, Database options, Heatwave MySQL, Exadata, Database Security, Disaster Recovery, Oracle Cloud Infrastructure (OCI) & Oracle enterprise Data Platform. Work experience includes Oracle Corporation, Pearson & Millennium Information Technologies Ltd. – part of London Stock Exchange Group (LSEG)
Expertises
Database 23ai
AI Vector Search
Active Data Guard (ADG)
Advanced Compression
Automatic Storage Management (ASM)
Autonomous Database
Automatic Workload Repository (AWR)
Backup and Recovery
Cloud Migrations
Converged Database
Links
Latest Contributions
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RMAN Backup Fundamentals Session-2
Dec 22, 2025 - Presentation - in-person or virtual - Getting Oracle Database Fundamentals Right - GODFR Series Day 9
Database
Oracle Database (EE)
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RMAN Backup Fundamentals - Session 1
Dec 15, 2025 - Presentation - in-person or virtual - Getting Oracle Database Fundamentals Right - GODFR Series Day 8
Database
Oracle Database (EE)
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Instance Recovery
Dec 01, 2025 - Presentation - in-person or virtual - Getting Oracle Database Fundamentals Right - GODFR Series Day 7
Database 23ai
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Multitenant Container Database - introduction
Nov 24, 2025 - Presentation - in-person or virtual - Getting Oracle Database Fundamentals Right - GODFR Series Day 6
Oracle Multitenant
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Getting Oracle Fundamentals Right Series - Logical And Physical Structures
Nov 10, 2025 - Presentation - in-person or virtual - Community Presentation
Database
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Getting Oracle Database Fundamentals Right - GODFR Series Day 4
Nov 03, 2025 - Presentation - in-person or virtual - Community Presentation
Oracle Database (EE)
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Getting Oracle Database Fundamentals Right - GODFR Series Day 3
Oct 27, 2025 - Presentation - in-person or virtual - Community Presentation
Database 26ai
Database Administrator (DBA)
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PonderCommunity Training Program
Oct 06, 2025 - Presenting - video/webinar - Getting Oracle Database Fundamentals Right (GODFR series)
Oracle Database Cloud Services
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Ponder Community Training Program
Sep 29, 2025 - Presenting - video/webinar - Getting Oracle Database Fundamentals Right (GODFR series)
Oracle Database Cloud Services
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Restoring a single PDB to a new Container database (Manual)
Jul 26, 2025 - Blog post -
Perl Database Administration (PDBA)
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Database 23ai : Bigfile Tablespace behaviors
Jul 26, 2025 - Blog post -
Database 23ai
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DBCA silent mode commands in 19c – Part 1
Jul 22, 2025 - Blog post -
Database 19c
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DBCA silent mode commands in 19c – Part 2
Jul 22, 2025 - Blog post -
Database 19c
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Database 23ai : PDB-Independent System TIMEZONE management
Jul 22, 2025 - Blog post -
Perl Database Administration (PDBA)
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