Unterschiede
Hier werden die Unterschiede zwischen zwei Versionen angezeigt.
| Beide Seiten der vorigen Revision Vorhergehende Überarbeitung | |||
| modul:m290:learningunits:lu04:theorie:d_complexselects [2024/09/27 12:41] – vdemir | modul:m290:learningunits:lu04:theorie:d_complexselects [2024/10/17 12:34] (aktuell) – vdemir | ||
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| SQL (Structured Query Language) provides powerful tools to perform calculations and data analysis on database records. Among these tools, aggregate functions play a crucial role in summarizing data by performing operations on multiple rows and returning a single result. This document focuses on five commonly used SQL aggregate functions: **MIN, MAX, COUNT, SUM, and AVG**, along with practical examples to illustrate their usage. | SQL (Structured Query Language) provides powerful tools to perform calculations and data analysis on database records. Among these tools, aggregate functions play a crucial role in summarizing data by performing operations on multiple rows and returning a single result. This document focuses on five commonly used SQL aggregate functions: **MIN, MAX, COUNT, SUM, and AVG**, along with practical examples to illustrate their usage. | ||