big_data
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| big_data [2014/07/23 15:55] – hkimscil | big_data [2014/07/23 15:56] – hkimscil | ||
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| Organizations | Organizations | ||
| * Relational Data Model: RDBMS (Relational Database Management System), mainly implemently by SQL (Structured Query Language). | * Relational Data Model: RDBMS (Relational Database Management System), mainly implemently by SQL (Structured Query Language). | ||
| - | * Entity-Relationship Data Model (ER): . . . It added additional abstraction to increase the usability of the data. In the model, each item was defined independently of its use. Therefore, developers could create new relationships between data sources without complex programming | + | * Entity-Relationship Data Model (ER): . . . It added additional abstraction to increase the usability of the data. In the model, each item was defined independently of its use. Therefore, developers could create new relationships between data sources without complex programming |
| * Data warehouse in 90s | * Data warehouse in 90s | ||
| * Beginning of unstructured data use -- BLOBs (Binary Large Objects) | * Beginning of unstructured data use -- BLOBs (Binary Large Objects) | ||
big_data.txt · Last modified: 2014/07/23 16:21 by hkimscil