Database -

Do you expect your system workload to be ?

: Systems like IBM’s IMS organized data like a family tree (hierarchical) or a complex web (network). These were "navigational," meaning you had to know the exact path to find your data. 2. The Relational Revolution (1970s–1990s) In 1970,

: The community view, which maps out the logical structure of the entire database, including entities, relationships, and constraints. database

Databases grow with your business without breaking [23].

As programming languages became object-oriented (C++, Java), developers faced an "impedance mismatch" – trying to map complex objects into simple relational tables. emerged to solve this, storing objects directly. While powerful for specific use cases (CAD, telecommunications), they never dethroned the RDBMS. Do you expect your system workload to be

: Divides a table by columns. Moving rarely used columns to a separate table reduces the overall disk space required for everyday queries. 3. Caching

: The physical devices (servers, hard drives, RAM) where data is stored and processed. Database Management System (DBMS) PostgreSQL , which provides the interface for data manipulation. including solid-state drives (SSDs)

When evaluating or configuring a database system, software engineers prioritize several non-negotiable architectural principles: ACID Compliance vs. BASE Properties

Do you expect your data structure to remain ?

Store data in JSON-like records (e.g., MongoDB).

: The physical or virtual infrastructure, including solid-state drives (SSDs), central processing units (CPUs), and memory (RAM), where the data physically resides and executes.