ACE Profile

Full Name

ACE Associate

Job Role DBA

Company Beijing Vastdata Technology Co., Ltd.

Country China, People's Republic of

Top Expertise Database

Focus Area Database

About Xiangyu

10 years of Oracle DBA work experience, keen on Oracle internal research, good at Oracle troubleshooting, performance tuning, RAC, ADG, recovery technologies

Frequently share Oracle cases and internal mechanisms on the blog www.minniebaby.tech
Frequent public speeches to share Oracle cases and Oracle internal mechanisms

Expertises Database Automatic Storage Management (ASM) Active Data Guard (ADG) Backup and Recovery Performance Real Applications Clusters (RAC) SQL Performance Automatic Workload Repository (AWR) Upgrade / Migration Architecture

Home Page http://www.minniebaby.tech/

Links

Latest Contributions

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oracle partial join eval

Apr 21, 2025 - Blog post -

Performance

Optimizer

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donot using using varchar2 to store date or timestamp

Jan 03, 2025 - Blog post -

Performance

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oracle scalar subquery caching

Dec 21, 2024 - Blog post -

Performance

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CBO flaw view merge and SLP

Nov 24, 2024 - Blog post -

Optimization

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ACE

Top Level Details

About Xiangyu

Latest Contributions

oracle partial join eval

donot using using varchar2 to store date or timestamp

oracle scalar subquery caching

CBO flaw view merge and SLP