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Full Name
Mudasir Nazir Hakak
Full Name
ACE Pro
Top Level Details
Job Role
Senior Database Consultant
Company
MINDS UNITED
Country
Bahrain
Top Expertise
Exadata
Focus Area
Database
About Mudasir Nazir
Mudasir Hakak is a certified Oracle database professional with a decade and a half of experience. His expertise ranges from implementing various database technologies from scratch to supporting existing mission-critical projects working with telecom clients in India and leading international banks. He previously worked for Citi Bank Malaysia and Deutsche Bank Singapore before moving to Middle east. He is currently based in Bahrain, working as a senior database consultant. His skillset includes Oracle databases, Exadata, Supercluster, GoldenGate, ZFS, Cloud deployments, Shell scripting, MySQL, and Postgres. He is a regular contributor to the Oracle community forum and maintains a technology-related blog https://mudasirhakakblog.wordpress.com Technical certifications Oracle Database Administrator Certified Professional Oracle GoldenGate Implementation Specialist Oracle Cloud Infrastructure Architect Professional Oracle Cloud Infrastructure Security Associate Oracle Cloud Database Services Certified Specialist Oracle Autonomous Database Cloud Specialist Oracle Database Cloud Administrator Professional AWS Certified Solutions Architect - Associate (SAA)
Expertises
Exadata
GoldenGate
Oracle Cloud Infrastructure (OCI)
MySQL
Engineered Systems
Oracle Community
https://forums.oracle.com/ords/apexds/user/mudasir-hakak
Links
Latest Contributions
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ERROR 6125 (HY000): Failed to add the foreign key constraint. Missing unique key for constraint ‘fk_a_group_servers’ in the referenced table ‘availability_groups_configuration
Jan 31, 2026 - Blog post -
Oracle Database (EE)
Parallel Data Pump Export/Import
MySQL 8
Backup and Recovery
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ORA-00600: internal error code, arguments: [3020], [3], [13770], [13770], [], [], [], [], [], [], [], []ORA-10567: Redo is inconsistent with data block (file# 3, block# 13770, file offset is 112803840
Jan 31, 2026 - Blog post -
Backup and Recovery
Oracle Database (EE)
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ORA-39035: Data filter SUBQUERY has already been specified.
Jan 24, 2026 - Blog post -
Oracle Database (EE)
Parallel Data Pump Export/Import
Exadata
Performance
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ORA-20000: Unable to gather statistics concurrently: Resource manager plan is not active or is not managing CPU usage
Jan 24, 2026 - Blog post -
Database 19c
Exadata
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JAVAVM/CATJAVA in invalid state in dba_registry
Jan 24, 2026 - Blog post -
Java
Oracle Database (EE)
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Cross platform oracle database Migration(Solaris to Linux) using M5 Migration Utility
Apr 30, 2025 - Blog post -
Migration
Database 19c
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Cross platform oracle database migration(Solaris to Linux) using XTTS VER4.3
Apr 30, 2025 - Blog post -
Migration
Database 19c
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Upgrading database from 12c to 19c using Manual method on Windows platform.
Apr 30, 2025 - Blog post -
Database 19c
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Setting exadata flashCacheMode to WriteBack
Apr 29, 2025 - Blog post -
Exadata
Database 19c
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Cloning ORACLE_HOME step by step instructions on Solaris platform
Apr 29, 2025 - Blog post -
Database 19c
Exadata
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[INS-20802] Oracle Cluster Verification Utility failed
Apr 29, 2025 - Blog post -
Oracle Grid Infrastructure Patching
Exadata
Database 19c
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ORA-08103: object no longer exists
Apr 29, 2025 - Blog post -
Database 19c
Exadata
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Drop ASM diskgroup and associated griddisks in Exadata
Apr 28, 2025 - Blog post -
Database 19c
Exadata
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Installing OEM agent manually on Solaris.
Apr 19, 2025 - Blog post -
Exadata
Oracle Enterprise Manager (OEM)
Oracle Database (EE)
Database 19c
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ORA-39077: unable to subscribe agent KUPC$A_1_112549778218000 to queue “KUPC$C_1_20240604112547_0”
Apr 11, 2025 - Blog post -
Database 19c
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