OSS-DB Gold Certified Engineers
Engineers capable of improving, operating and managing a large-scale database system
with consulting ability

About OSS-DB Gold

Certification name OSS-DB Gold
Exam name OSS-DB Exam Gold
Advantage of being certified as OSS-DB Gold This proves that a certified engineer has the following skills and knowledge.
  • In-depth Knowledge of RDBMS and SQL
  • In-depth knowledge of open source database
  • Can operate and maintain a large-scale database system using OSS-DB, such as PostgreSQL
  • Can develop a large-scale system using OSS-DB, such as PostgreSQL
  • Is familiar with the internal structure of OSS-DB, such as PostgreSQL
  • Can optimize the performance of an open source database system
  • Can verify the use and condition of OSS-DB, such as PostgreSQL and troubleshooting

Work experience is not required to take the exam, but an "Active certification status(*) of OSS-DB Silver" is required as a prerequisite.
If your purpose is solely to take the exam, then it is possible to take OSS-DB Exam Gold first.
(Note that OSS-DB Gold cannot be acquired until you acquire OSS-DB Silver.)

(*)Once a person is certified OSS-DB Silver or OSS-DB Gold, recertification within "5 years" is required to RETAIN an ACTIVE certification status.

Overview and Information for Taking the Exam

Duration of learning From two weeks to one month as a general guide
Exam cost 15,750 yen per exam (in Japan)
150 USD (w/o tax) per exam (outside Japan)
Number of questions 30 per exam
Pass line 70 points
Examination method

Computer based testing (CBT). An examinee answers approximately 30 questions online using a computer. Most questions are multiple-choice answered by using a mouse; however, some questions require keyboard entry. There is no hands-on certification test or interview.

Exam date/place

Select a desired date and location freely from various parts of the country when you apply for the exam. The duration of the exam is 90 minutes (*).

* The actual duration of the exam will be 80 minutes since you will be required to sign the "Non-Disclosure Agreement" and to answer a simple questionnaire after the exam, which takes about five minutes each.

Contact the following test center for details of exam date and place.


Taking an exam

Step 1: Register

You must register online to receive an LPI identification number (LPI-ID) first. Failure to complete this step may effect your eligibility for your desired time slot. Also you must provide your LPI-ID to the test centers when registering for an exam. Registration is free of charge and is completed here at the LPI web site.


Step 2: Schedule to Take an Exam

OSS-DB exams are delivered through a number of different methods; choose one that's most convenient:

You must provide your LPI-ID to the test centers when registering for an exam. If you do not provide your LPI-ID, your exam may not get loaded.

You can register for OSS-DB exams through one of the thousands of Pearson VUE testing centers worldwide. Once you have located a convenient Pearson VUE center, you may schedule to take an OSS-DB exam either online or by phone.

Pearson Vue

Step 3: Take the Exam

Exam result You will receive your exam results immediately upon completion.

Once You Acquire Certification

When you pass "OSS-DB Exam Gold", it means you are certified as "OSS-DB Gold".

Certification card
These will be sent to you three weeks after taking the exam.
Certificate sample Certification card sample
Certification logo

This logo can only be used on a name card, etc. by the engineers certified as "OSS-DB Gold".
The logo can be downloaded from the following:

⋅ Use the following phrase when you indicate the certification with words.
OSS-DB Gold Certified Engineer
Open Source Software Database Professional Certification Gold Certified Engineer

⋅ Example of logo mark
Name card sample
Active certification status
(Recertification policy)

There is no validity period, but there is an "*) active certification status (recertification policy)".
To RETAIN an ACTIVE certification status, a certification holder is REQUIRED to recertify within 5 years from the certified date.

*) About "Recertification Policy"

Once a person is certified by LPI and receives a certification designation (OSS-DB Silver, OSS-DB Gold), recertification is recommended after two years from the date of the certification designation to retain a current certification status. However, to RETAIN an ACTIVE certification status, a certification holder is REQUIRED to recertify within 5 years of the certification designation.

Recertification requires that the individual candidate passes all up-to-date exams that are only required for the highest earned certification designation. After successful recertification, the designation status will be updated to ACTIVE for a period of FIVE years.

Top of this Page