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Tag: inheritance

What is the purpose of “Schema Owner”?

By adminPosted on December 27, 2022

Question : If I create a new schema and set the schema owner to another schema, for example dbo, what […]

Partial unique constraint spanning multiple tables in postgres

By adminPosted on November 30, 2022

Question : To enforce partial uniqueness in postgres, it is a well known workaround to create a partial unique index […]

Is this a step in the right direction for normalization? SQL ‘inheritance’ and Many-to-Many relationships

By adminPosted on November 16, 2022

Question : Context: So, this is kind of a compound question, but they go together, and definitely wouldn’t make sense […]

When using class inheritance, can all PKs of the derived tables exist as PKs of the base table?

By adminPosted on November 10, 2022

Question : Brief questions When class inheritance is used, the child table inherits the key from the parent, right? Thus, […]

Finding a good DB design for my project

By adminPosted on November 8, 2022

Question : I’ve posted this on stackOverflow but this might be a more suitable place. I’m really struggling to find […]

Designing an extensible authentication system

By adminPosted on October 16, 2022

Question : I need to design an authentication system, where different type of authentication schemes may exist. At the end, […]

Foreign key double inheritance SQLITE

By adminPosted on September 24, 2022

Question : I’m designing a domotic system database and I’m trying to figure out how to represent two foreign keys. […]

Will switching from Concrete Table Inheritance to Single Table Inheritance improve the performance of my queries?

By adminPosted on August 23, 2022

Question : I currently have an application that allows people to view and share 10 different types of posts (ex […]

Query parent table and get child tables columns

By adminPosted on August 1, 2022

Question : I have two tables, one inherits the other: CREATE TABLE parent ( col1 INTEGER ); CREATE TABLE child […]

Designing an extensible authentication system

By adminPosted on August 1, 2022

Question : I need to design an authentication system, where different type of authentication schemes may exist. At the end, […]

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