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).

Recent stories

Oracle PDB Default Service Limiting SQL Parallelism

While investigating a parallel query related performance problem in an 19.24 Oracle RACOne node database, I encountered ...

by Jure Bratina

6 min read

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

This post is about investigating a non obvious reason an INSERT running in parallel suddenly started taking longer to ...

by Jure Bratina

7 min read

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

A client was moving an Oracle 11.2.0.4 database from their data center to one of the major cloud providers' ...

by Jure Bratina

7 min read

More stories

Oracle

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

Oracle

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

Oracle

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

Oracle

Database Upgrade Fails With “unexpected error in validate_credentials”

Oracle

Statspack vs. AWR: Wrong number of SQL Executions

Oracle

DML by Unique Index Supposedly Affecting Many Rows

Microsoft SQL Server

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

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

Oracle

Mining Statspack and AWR Repositories for Historical Trends