Which one of the following is NOT an advantage of using a relational database?

Data can be accessed, inserted and/or deleted without changing the
database structure.
2 The database structure can be easily customised for most types of data storage.

It is easy to search for and extract data from the database.

It makes it easier to understand where data with many interrelationships are
stored and processed.

Question

Which one of the following is NOT an advantage of using a relational database?

Data can be accessed, inserted and/or deleted without changing the
database structure.
2 The database structure can be easily customised for most types of data storage.
It is easy to search for and extract data from the database.
It makes it easier to understand where data with many interrelationships are
stored and processed.

UpStudy AI · Accepted Answer

**Step 1:** Examine the advantages of relational databases. Relational databases are designed such that:

- They are structured with a predefined schema.
- They allow data to be accessed, inserted, and deleted without changing this schema.
- They support powerful search and extraction of data using query languages like SQL.
- They efficiently manage and understand complex interrelationships between data due to normalization.

**Step 2:** Analyze each option:

1. **Option 1:** $$ 	ext{"Data can be accessed, inserted and/or deleted without changing the database structure."} $$  
   This is a true advantage because the database schema remains intact while performing CRUD operations.

2. **Option 2:** $$ 	ext{"The database structure can be easily customised for most types of data storage."} $$  
   This is not a typical advantage of relational databases. Relational databases require a fixed schema, and customization or altering the schema is generally not simple once the schema is defined.

3. **Option 3:** $$ 	ext{"It is easy to search for and extract data from the database."} $$  
   This is a valid advantage due to the use of SQL and other query optimizations in relational databases.

4. **Option 4:** $$ 	ext{"It makes it easier to understand where data with many interrelationships are stored and processed."} $$  
   This is an advantage as the relational model organizes data in a way that clearly defines relationships.

**Step 3:** Conclude the answer.

Since Option 2 does not represent a genuine advantage of relational databases, the answer is:

$$ \boxed{2} $$
Option 2 is not an advantage of using a relational database.

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