Adatbázistábla

Adatbázistábla refers to a fundamental structure within a relational database. It is a collection of related data organized into rows and columns. Each row, also known as a record or tuple, represents a single item or entity, while each column, also known as a field or attribute, describes a specific characteristic of that item. The intersection of a row and a column contains a single data value.

The purpose of an adatbázistábla is to store and manage structured information efficiently. For example, a table named "Customers" might have columns for "CustomerID," "FirstName," "LastName," and "Email," with each row representing a unique customer. The relationships between different adatbázistáblák are established using keys, most commonly primary keys and foreign keys, which allow for complex data retrieval and analysis.

Creating and manipulating adatbázistáblák is a core task in database management. This is typically done using structured query language (SQL), a standard language for interacting with relational databases. Database administrators and developers define the table schema, specifying the data types for each column (e.g., integer, text, date) and any constraints, such as uniqueness or not-null requirements, to ensure data integrity. The design and organization of adatbázistáblák significantly impact the performance and scalability of a database system.