Second Normal Form (2NF) In the 2NF, relational must be in 1NF. In the second normal form, all non-key attributes are fully…
Category:
DBMS Tutorial
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DBMS vs. File System File System Approach File based systems were an early attempt to computerize the manual system. It is also…
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Selection of RAID Levels In the previous section, we came to know about RAID and understood the various levels of RAID. Here,…
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Problems with ER Model This article will study the two main types of connection traps and how to solve such problems in…
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Questions on Lossy and Lossless Decomposition If relation in the relational model or relational schema is not inappropriate normal form then decomposition…
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Sequential File Organization This method is the easiest method for file organization. In this method, files are stored sequentially. This method can…
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SQL Update Statement The SQL UPDATE statement is used to modify the data that is already in the database. The condition in…
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Difference between DDL and DML A database is a list of related records, and the Database Management System is the most common…
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Selection Operation in Query Processing In the previous section, we understood that estimating the cost of a query plan should be done…
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Storage System in DBMS A database system provides an ultimate view of the stored data. However, data in the form of bits,…