Relational Database
Database
QBE (Q aus IT Glossary)
Data Relationships
The Evolution of Big Data Technologies
Queries
Data Retrieval
Tools
Data Models 
types include: Conceptual Data Model Logical Data Model Physical Data Model Dimensional Data Model
Relational Data Model 1
...Physical Data Model The physical data model translates the logical data model into a specific
database implementation
...
Database A
database generally refers to an organized collection of data that is related to one another stand
...Depending on their use and structure, databases can be divided into
relational databases, divided databases, public and object-oriented databases
...
QBE (Q aus IT Glossary) Originally refers to a
relational database query
...
Data Relationships Model (ER Model) A visual representation of entities (data points) and their relationships, commonly used in
database design
...Relational Model A model based on the theory of relations, where data is organized into tables that can be linked through relationships
...
The Evolution of Big Data Technologies Early Developments (1960s - 1990s) The concept of handling large datasets began in the 1960s with the development of
databases
...Traditional
relational database management systems (RDBMS) were primarily designed to manage structured data
...
Queries Queries are requests for information or data from a
database, and they are fundamental in various analytical processes, including text analytics
...types: Structured Queries: These are predefined queries that follow a specific syntax and structure, typically used in
relational databases
...
Data Retrieval The process can be broken down into several key components: Data Sources: Identifying where data resides, such as
databases, data warehouses, or external APIs
...SQL Queries Structured Query Language (SQL) is used to retrieve data from
relational databases
...
Tools Tool Name Description Key Features Microsoft SQL Server A
relational database management system developed by Microsoft for storing and retrieving data
...
Data Models It outlines the structure of the data elements and their relationships in a way that is independent of any specific
database management system (DBMS)
...These models differ significantly from traditional
relational models and include: Document-based models (e
...
Tools Tool Description Key Features SQL Server A
relational database management system developed by Microsoft
...
Eine Geschäftsidee ohne Eigenkaptial 
Wenn ohne Eigenkapital eine Geschäftsidee gestartet wird, ist die Planung besonders wichtig. Unter Eigenkapital zum Selbstständig machen versteht man die finanziellen Mittel zur Unternehmensgründung. Wie macht man sich selbstständig ohne den Einsatz von Eigenkapital? Der Schritt in die Selbstständigkeit sollte wohlüberlegt sein ...
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