adatmódosításokkal
Adatmódosításokkal (Hungarian for "data modifications") refers to the process of altering or updating existing data within a database or data management system. This process is fundamental in maintaining the accuracy, relevance, and integrity of data. Data modifications can occur for various reasons, including corrections of errors, updates to reflect changes in real-world conditions, and the addition of new information.
There are several types of data modifications, each serving different purposes:
1. Update: This involves changing the value of existing data. For example, updating a customer's address in
2. Insert: This refers to adding new data to a database. For instance, inserting a new record
3. Delete: This involves removing data that is no longer needed or relevant. For example, deleting outdated
Data modifications are typically performed using Structured Query Language (SQL) commands in relational databases. These commands
It is crucial to ensure that data modifications are performed accurately and securely. This often involves