When should you not use a database?

In my experience, you shouldn't use a relational database when any one of these criteria are true:
  1. your data is structured as a hierarchy or a graph (network) of arbitrary depth,
  2. the typical access pattern emphasizes reading over writing, or.
  3. there's no requirement for ad-hoc queries.
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When should we not use a database?

When Not to Use a DBMS
  • High initial investment in hardware, software, and training.
  • The generality that a DBMS provides for defining and processing data.
  • Overhead for providing security, concurrency control, recovery, and integrity functions.
  • Simple, well-defined database applications that are not expected to change at all.
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What are the disadvantages of using a database?

Disadvantages
  • Database systems are complex, difficult, and time-consuming to design.
  • Substantial hardware and software start-up costs.
  • Damage to database affects virtually all applications programs.
  • Extensive conversion costs in moving form a file-based system to a database system.
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What are some reasons a DBMS may not be used?

The disadvantages of DBMS are explained below.
  • Increased Cost: These are different types of costs:
  • Complexity: ...
  • Currency Maintenance: ...
  • Performance: ...
  • Frequency Upgrade/Replacement Cycles:
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When should you use a database?

It is typical to use a database when different sets of data needs to be linked together, such as:
  1. Pupils in a school and their grades.
  2. Customer records and sales information.
  3. Patients' and doctors' records.
  4. Transactions between different bank accounts.
  5. Taxpayers and income tax payments.
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SQL vs NoSQL Explained



When would you use a database instead of spreadsheet?

Databases are better for long-term storage of records that will be subject to changes. Databases have a far greater storage capacity than spreadsheets. If your spreadsheet exceeds 20 columns and/or 100 rows, chances are it would be better for you to use a database.
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Which of the following do not use a DBMS?

A correct answer is an option (D) HTML. HTML is not involved in Database Management System (DBMS).
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Which of these is not an advantage of database system?

All of the above are true, High acquisition costs are not the advantage of a database management system. Explanation: Data redundancy has been minimized. Update mistakes were reduced and consistency was improved.
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Which one is not advantage of DBMS?

Therefore, High acquisition costs are not the advantage of a database management system.
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What are the risks of the database approach?

As with any other business decision, the database approach entails some additional costs and risks that must be recognized and managed when it is implemented.
  • NEW, SPECIALIZED PERSONNEL.
  • INSTALLATION AND MANAGEMENT COST AND COMPLEXITY.
  • CONVERSION COSTS.
  • NEED FOR EXPLICIT BACKUP AND RECOVERY.
  • ORGANIZATIONAL CONFLICT.
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Which one of the following is a disadvantage of the database approach for an organization?

Increased costs

one of the disadvantages of dbms is Database systems require sophisticated hardware and software and highly skilled personnel. The cost of maintaining the hardware, software, and personnel required to operate and manage a database system can be substantial.
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What Cannot be stored in a database?

Credit Card Data

Finally, you shouldn't store credit card information in your database unless you absolutely need to. This includes credit card owner names, numbers, CVV numbers, and expiration dates. There is far too much risk involved.
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Why you should not use MySQL?

Don't use MySQL if another DBMS is going to prove cheaper / better value. Other leading DBMSs like Oracle or SQL Server have many features that MySQL does not. Also if your employer already has a large investment in other DBMSs it may be prohibitively expensive and difficult to support MySQL without good reason.
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Which is not the feature of database?

Which is not the feature of database: Data redundancy.
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Which one of the following is not an advantage of SQL?

No coding required is not an advantage of SQL.
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Why Excel should not be used as a database?

Using Excel as a database puts you at risk of working with inaccurate information, and wasting time. Because updates are only available after users have actively saved changes, and files can be saved to any location, there can be multiple versions with conflicting or outdated data to manage.
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When should I use database vs Excel?

In an ideal world, databases should be used for its ability to organize and displays rafts of data in a structured manner, to run complex queries with multiple fields, to generate specific reports. And spreadsheets should be used for its advanced mathematical calculations and statistical comparisons to analyze data.
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What are the benefits of using databases instead of spreadsheets and flat files?

Because databases store information more efficiently, databases can handle volumes of information that would be unmanageable in a spreadsheet. Spreadsheets have record limitations whereas databases do not. Compared to databases, spreadsheets can require a large amount of hard-drive space for data storage.
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What is the disadvantage of relational database?

One disadvantage of relational databases is the expensive of setting up and maintaining the database system. In order to set up a relational database, you generally need to purchase special software. If you are not a programmer, you can use any number of products to set up a relational database.
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What constitutes a bad database design?

A badly designed database has the following problems: Related data is scattered over various tables. A change must be updated at many places. It's possible that the information is only half present, it's there in one table, but missing in another one.
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What are some common problems with poorly designed databases?

Ten Common Database Design Mistakes
  • Poor design/planning.
  • Ignoring normalization.
  • Poor naming standards.
  • Lack of documentation.
  • One table to hold all domain values.
  • Using identity/guid columns as your only key.
  • Not using SQL facilities to protect data integrity.
  • Not using stored procedures to access data.
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What are the major pitfalls that should be avoided during designing a database system?

Hence, to get it right in one go, here is a list of nine mistakes to avert while designing a database.
  • Poor Design/Planning. ...
  • Ignoring Normalization. ...
  • Redundant Records. ...
  • Poor Naming Standards. ...
  • Lack of Documentation. ...
  • One Table to Hold All Domain Values. ...
  • Ignoring Frequency or Purpose of the Data. ...
  • Insufficient Indexing.
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Which of the following are limitations of database system?

Limitations of Database Management System
  • More Costly. Creating and managing a database is quite costly. ...
  • High Complexity. ...
  • Database handling staff required. ...
  • Database Failure. ...
  • High Hardware Cost. ...
  • Huge Size. ...
  • Upgradation Costs. ...
  • Cost of Data Conversion.
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What are the limitation of DBMS?

Longer processing time: If a may result for high volume transaction processing application. Vulnerability errors, fraud and failure: It happens when an organization realize on centralize database. Security concerns: Management has to spend more many and time in ensuring the security of the database management system.
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