modul:m290:learningunits:lu02:loesungen:l02

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modul:m290:learningunits:lu02:loesungen:l02 [2024/08/13 17:34] – angelegt vdemirmodul:m290:learningunits:lu02:loesungen:l02 [2024/10/02 15:11] (aktuell) – vdemir
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-====== LU02.L01 - Answers: DBS, DBMS and DB ======+====== LU03.S02 - Answers: CRUD and SQL ======
  
-1. ... +1. Explain what is behind the so-called CRUD operations and add an example. 
-  * <color #ed1c24>...</color> +  * <color #ed1c24>CRUD is an acronym for Create, Read, Update, and Delete and represents the four fundamental operations for managing data in a database.</color>  
-  * <color #ed1c24>...</color>+  * <color #ed1c24>CRUD is a conceptual framework.</color> 
 +  * <color #ed1c24>It outlines the basic operations for data management but doesn't specify how these operations are implemented. </color> 
 + 
 +---- 
 +2. What does the acronym SQL stand for? 
 +  - <color #ed1c24>Structured Query Language</color> 
 +  - Standard Query Language. It used to be that name bevor 2000, but changed in "Structured" 
 +  - Simple Quarrel Language.  
 + 
 +----- 
 + 
 +3. Which of the following statements about CRUD and SQL is **not** correct? 
 +  - The CRUD approach is a prerequisite for all types of dynamic web applications. 
 +  - CRUD is realised in databases by SQL -statements, e.g. SELECT, CREATE, UPDATE and DELETE. 
 +  - The CRUD approach groups SQL-operations logically. 
 +  - <color #ed1c24>CRUD is an alternative to SQL and has to be applied, if we want to build stable web pages.</color> 
 + 
 +---- 
 + 
 +4. Which of the following SQL subtypes does **not** exist? Explain the meaning of the other terms. 
 +  - DCL = <color #ed1c24>Data Control Language. Management of users and their permissions.</color>  
 +  - DML = <color #ed1c24>Data Manipulation Language. Management of the content. Insert, Update, Delete. </color>  
 +  - <color #ed1c24>DXL</color> 
 +  - DDL = <color #ed1c24>Data Definition Language. Manamegement of the tables and their structure.</color>  
 +  - DQL = <color #ed1c24>Data Query Language. Structured reading and fetching of content.</color>  
 + 
 +----
  
 ===== Vocabulary ===== ===== Vocabulary =====
 ^ English ^ German ^  ^ English ^ German ^ 
-| ... | ...| +| conceptual | abstrakt, konzeptionell | 
 +| to outline | skizzieren, zusammenfassen | 
 +| to implement | anwenden | 
 +| query | Anfrage | 
 +| quarrel | Streit, Zank |
  
  
 ---- ----
 +
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  • Zuletzt geändert: 2024/08/13 17:34
  • von vdemir