Category: Education

Schreibschutz von Tabellen 1

Write protection of tables

Write protection can be applied to tables. This prevents DDL (Data Definition Language) and DML (Data Manipulation Language) changes during maintenance mode. The statement: ALTER TABLE tablename READ ONLY; — nur mehr lesbar ALTER...

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Operational optimization problems and algorithms

This article discusses operational optimization problems and algorithms. Additionally, graphs, paths, and cycles are revisited, and complexity is discussed. The algorithms section delves into heuristics and approximation algorithms, primarily focusing on the Travelling Salesman...

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Commit Rollback SQLDEV

Commit and Rollback SQL Developer

The SQL Developer sets implicit automatic COMMITs. This COMMIT is subconsciously and automatically canceled in the following situations. Werbung / Advertisements (1) SQL Developer quits normally, with no COMMIT or ROLLBACK statement. In this...

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