Three schema Architecture The three schema architecture is also called ANSI/SPARC architecture or three-level architecture. This framework is used to describe the…
Tag:
dbms generalization
-
-
Evaluation of Expressions In our previous sections, we understood various concepts in query processing. We learned about the query processing steps, selection…
-
Indexing in DBMS Indexing is used to optimize the performance of a database by minimizing the number of disk accesses required when…
-
Mapping Constraints A mapping constraint is a data constraint that expresses the number of entities to which another entity can be related…
-
Referential Integrity constraint A referential integrity constraint is also known as foreign key constraint. A foreign key is a key whose values…
-
SQL INSERT Statement The SQL INSERT statement is used to insert a single or multiple data in a table. In SQL, You…
-
Timestamp Ordering Protocol The Timestamp Ordering Protocol is used to order the transactions based on their Timestamps. The order of transaction is…
-
External Sort-Merge Algorithm Till now, we saw that sorting is an important term in any database system. It means arranging the data…
-
Materialization in Query Processing In the previous, we took a brief introduction about materialization and how to evaluate multiple operations of an…
-
DBMS MCQ This section of interview questions and answers focuses on “Database Management System”. One shall practice these interview questions to improve…