Jure Bratina

Jure Bratina is an experienced Oracle DBA currently working as a Database Consultant with The Pythian Group. The areas he most likes to work on are troubleshooting and performance tuning of Oracle databases. Jure is also a member of the Executive Committee at the Slovenian Oracle User Group (SIOUG).

Posts by Jure Bratina

Featured blog posts

Oracle PDB Default Service Limiting SQL Parallelism
Oracle

Oracle PDB Default Service Limiting SQL Parallelism

Jun 13, 2025 9:54:36 AM 6 min read
DML Part of a Parallel INSERT Suddenly Started to Execute Serially in Oracle
Oracle

DML Part of a Parallel INSERT Suddenly Started to Execute Serially in Oracle

May 6, 2025 9:30:47 AM 7 min read
Oracle Database Migrated to Cloud Starts Experiencing "log file sync" Waits
Oracle

Oracle Database Migrated to Cloud Starts Experiencing "log file sync" Waits

Sep 29, 2023 11:28:06 AM 19 min read
Investigating a Chain of Events Resulting in Occasional Query’s Degraded Performance in Oracle
Oracle

Investigating a Chain of Events Resulting in Occasional Query’s Degraded Performance in Oracle

May 29, 2023 12:00:00 AM 7 min read
Interesting variations in outcome when cloning a CDB with a subset of PDBs in Oracle
Oracle

Interesting variations in outcome when cloning a CDB with a subset of PDBs in Oracle

Nov 15, 2022 12:00:00 AM 11 min read
After logon trigger in user schema and FRA full situation hang the database
Oracle

After logon trigger in user schema and FRA full situation hang the database

Sep 16, 2022 12:00:00 AM 15 min read
Database Upgrade Fails With “unexpected error in validate_credentials”
Oracle

Database Upgrade Fails With “unexpected error in validate_credentials”

Nov 12, 2021 12:00:00 AM 10 min read
Statspack vs. AWR: Wrong number of SQL Executions
Oracle

Statspack vs. AWR: Wrong number of SQL Executions

Oct 27, 2021 12:00:00 AM 9 min read
DML by Unique Index Supposedly Affecting Many Rows
Oracle

DML by Unique Index Supposedly Affecting Many Rows

Mar 16, 2021 12:00:00 AM 6 min read
Issues With Database Service Names Starting With Pluggable Database (PDB) Name
Oracle

Issues With Database Service Names Starting With Pluggable Database (PDB) Name

Nov 5, 2020 12:00:00 AM 9 min read
Query Statspack's "SQL ordered by" Sections Over a Time Period

Query Statspack's "SQL ordered by" Sections Over a Time Period

Aug 25, 2020 12:00:00 AM 10 min read
Mining Statspack and AWR Repositories for Historical Trends
Oracle

Mining Statspack and AWR Repositories for Historical Trends

Aug 10, 2020 12:00:00 AM 14 min read

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