Lecture 1: Fundamentals Of Database

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What is Data?

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Data refers to raw facts, figures, and details collected from various sources. It can be processed to create useful information.

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Examples of Data

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Textual Data, Numerical Data, Audio Data, Visual Data, Meta Data.

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What is Information?

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Information is processed and organized data that has meaning and relevance, allowing it to be interpreted in context.

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Characteristics of Information

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Processed Data, Meaningful, Contextual, Relevance.

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What is a Database?

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A Database is a collection of related data, stored digitally, that is easily accessible, organized, and meaningful.

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Examples of Databases

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Education (Student Info System), Healthcare (Patient Records), E-commerce (Retail Database), Music Streaming (Customer Database), Government (SSS, PhilHealth, etc.).

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What is a Field in a Database?

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A specific piece of information (e.g., phone number, customer name).

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What is a Record in a Database?

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A collection of related fields that describe an entity.

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What is a File in a Database?

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A collection of related records.

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What is a Table in a Database?

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A database structure made of rows (records) and columns (fields).