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13votes
10answers
9kviews

Is there any benefit to a separate table that is one-to-one with the primary data table?

I've inherited a system with an Oracle relational database with a couple of tables modeled like I've sketched below, where there's an entire child table that only stores a single status code in a one-...
Kaypro II's user avatar
1vote
1answer
197views

Feature Store Design for input data like JSON, CSV and Excel

I need a design approach for a feature store which accepts input data in the forms of CSV, EXCEL, JSON etc. The backend stack we support is Java, Spring boot and oracle DB. Note : Each file ...
crazy_code's user avatar
2votes
2answers
3kviews

From Oracle to Apache Parquet : how to handle eventual consistency?

I have an existing production Oracle Database. However, there are performance issues for certain kind of operations, because of the volume of the data, or the complexity of queries. That's why I ...
Klun's user avatar
3votes
3answers
427views

Designing database job monitoring

I have several Oracle database where my in-house applications are running. Those applications use both dba_jobs and dba_scheduler_jobs. I want to write monitoring function: check_my_jobs which will ...
mariami's user avatar
0votes
1answer
421views

A large Oracle database with no foreign keys [closed]

I am struggling to understand the design of an Oracle database that I have been working with for the past 9 months. The database is for our business management system and I work with it mostly for ...
jaromey's user avatar
1vote
0answers
70views

Database data Bucketing Report Design

Here's the scenario: I have item x (item_id, customer_number, cost) which can be submitted to another system multiple times over months which may or may not reject item x before finally accepting it ...
Reimius's user avatar
3votes
2answers
3kviews

Designing a system to archive databases with referential integrity

I have a very large Oracle database, with many many tables and millions of rows. I need to delete some of the rows end-to-end. By end-to-end, I mean, if I want to delete a row from a table then I must ...
instanceOfObject's user avatar
1vote
1answer
2kviews

Modular Database Structures

I have been examining the code base we use in work and I am worried about the size the packages have grown to. The actual code is modular, procedures have been broken down into small functional (and ...
John D's user avatar
7votes
6answers
8kviews

Database Table Prefixes

We're having a few discussions at work around the naming of our database tables. We're working on a large application with approx 100 database tables (ok, so it isn't that large), most of which can be ...
DoctorMick's user avatar
4votes
3answers
689views

two approaches to database modeling - which one to use when

recently I have noticed a new approach to data modeling vs what I have used so far. This seems to be a way to address modeling of an entity that has a very large set of fields and quite often many of ...
user avatar
11votes
9answers
28kviews

Is there a large bank using Mysql or PostgreSQL? [closed]

I always thought the largest scale of banks use Oracle. However, there is no proof they really use Oracle instead of Mysql or PostgreSQL, nobody knows the secret. Any idea what they really use? Can ...
YumYumYum's user avatar

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