Database by shyni https://padlet.com/shyni123/DA1 Database Concepts - Normalisation en-us 2014-11-15 16:03:17 UTC 2025-11-03 13:06:36 UTC hello@padlet.com https://padletuploads.blob.core.windows.net/prod/400162/de6ca9e4e26fc58920d1232b570f80a2/WS_without_background.png G1 shyni123 https://padlet.com/shyni123/DA1/wish/219120246
  • Explain what is normalisation
  • List the different normal forms

    • ]]>     2018-01-07 05:16:35 UTC https://padlet.com/shyni123/DA1/wish/219120246     G2 - ME shyni123 https://padlet.com/shyni123/DA1/wish/320034970 Name the key ethical challenges for humanity and discuss the need for the moral values to be adhered to in managing resources and testing students’ knowledge and understanding of an important application of ICT in database management system like keeping consistent data and maintaining the integrity of data.Is it connected to Data Protection act. If so which principle?]]> 2019-01-13 12:00:35 UTC https://padlet.com/shyni123/DA1/wish/320034970 How is it connected to moral values and which value is it connected to? shyni123 https://padlet.com/shyni123/DA1/wish/320035084 2019-01-13 12:02:03 UTC https://padlet.com/shyni123/DA1/wish/320035084 G3 shyni123 https://padlet.com/shyni123/DA1/wish/320153886
  • What is the need for normalisation in day to day life. 
  • Do you think it is necessary to normalise data
  • Which Subject is it closely related to ?
    • ]]>     2019-01-14 05:10:59 UTC https://padlet.com/shyni123/DA1/wish/320153886     G4 - Real Application shyni123 https://padlet.com/shyni123/DA1/wish/320154233 Give one real life application in Dubai where you think they will be using normalisation in holding residents data]]> 2019-01-14 05:14:10 UTC https://padlet.com/shyni123/DA1/wish/320154233 G5 - List characteristics of different normal forms shyni123 https://padlet.com/shyni123/DA1/wish/1182787809 2021-02-09 15:40:02 UTC https://padlet.com/shyni123/DA1/wish/1182787809 Objective shyni123 https://padlet.com/shyni123/DA1/wish/1182798844
  • describe the characteristics of data in 
    • unnormalised form (0NF), 
    • first normal form (1NF), 
    • second normal form (2NF
    •  third normal form (3NF)
  • To identify the normal form 
  • Normalise a database to 3NF
    • ]]>     2021-02-09 15:41:46 UTC https://padlet.com/shyni123/DA1/wish/1182798844     Emadul Islam https://padlet.com/shyni123/DA1/wish/1235283784 1) Normalization is organizing data in a database to reduce data redundancy and increase data integrity. The main purpose of normalization is to reduce the amount of duplicated data and to   simply the structure of a database.

    2) 
    • UNF or 0NF (Unnormalized form)
    • 1NF (First Normal form)
    • 2NF (Second Normal form)
    • 3NF (Third Normal form)

    ]]>     2021-02-24 08:54:15 UTC https://padlet.com/shyni123/DA1/wish/1235283784     Why do we need to normalize data? https://padlet.com/shyni123/DA1/wish/1235284120 Yes, it is necessary to normalise data because:
    To Eliminate the redundant or useless data
    To Reduce the complexity of the data
    To Ensure the relationship between tables as well as data in the tables
    To Ensure data dependencies and data is logically stored.
     
    ]]>     2021-02-24 08:54:21 UTC https://padlet.com/shyni123/DA1/wish/1235284120     Do you think it is necessary to normalize data ? https://padlet.com/shyni123/DA1/wish/1235284985 -sneha 12D
    yes , for the following reasons :

    (1) to reduce duplication of data -
    One of the biggest impacts of normalizing your data is reducing the number of duplicates in your database. Normalizing your data before matching and merging duplicates will make it easier to find the duplicates

    (2) performance and metrics -
    Databases that aren’t standardized and poorly maintained can cause major headaches when it comes to analyzing the data. By standardizing your data, and using a single organizational method with proper capitalization, your data will be significantly easier to sort through]]>     2021-02-24 08:54:38 UTC https://padlet.com/shyni123/DA1/wish/1235284985     Yevin Nethmika https://padlet.com/shyni123/DA1/wish/1235285692 In the UAE the emirates ID is an essential part for every resident, therefore having normalized data is important to make sure that the data doesn't get mixed up with other residents of UAE as this can result in major issues while updating or looking up for the resident]]> 2021-02-24 08:54:50 UTC https://padlet.com/shyni123/DA1/wish/1235285692 Marc https://padlet.com/shyni123/DA1/wish/1235285961 Data of residents like their passports and Emirates ID would need to be normalised in order for their data to be accurate and be used to identify residents easily ]]> 2021-02-24 08:54:55 UTC https://padlet.com/shyni123/DA1/wish/1235285961 Seif https://padlet.com/shyni123/DA1/wish/1235287467 Q1) Normalization is the process of reorganizing data in a database so that it meets two basic requirements
    Q2) 
    • 1NF (First Normal Form)
    • 2NF (Second Normal Form)
    • 3NF (Third Normal Form)
    ]]>     2021-02-24 08:55:24 UTC https://padlet.com/shyni123/DA1/wish/1235287467     Saad N https://padlet.com/shyni123/DA1/wish/1235290339 0NF or UNF: 
    - Has Non-Atomic Data 
    - Data is repeated
    1NF:
    -Data is Atomic 
    -May have a primary key
    2NF:
    -Partial dependency 
    -Primary key & Foreign key 
    3NF:
    -Data is directly dependent.]]>     2021-02-24 08:56:18 UTC https://padlet.com/shyni123/DA1/wish/1235290339     Vansh Shukla https://padlet.com/shyni123/DA1/wish/1235290340 It may be used to hold data for the residents such as, Full name, date of birth, Emirates ID, Health issues,
    Job information. All the data is collected by the Government. ]]>     2021-02-24 08:56:18 UTC https://padlet.com/shyni123/DA1/wish/1235290340     Seratul https://padlet.com/shyni123/DA1/wish/1235290635 Database normalization is the process of structuring a database, usually a relational database, in accordance with a series of so-called normal forms in order to reduce data redundancy and improve data integrity]]> 2021-02-24 08:56:23 UTC https://padlet.com/shyni123/DA1/wish/1235290635 Abdullah Sheikh https://padlet.com/shyni123/DA1/wish/1235291687 2021-02-24 08:56:39 UTC https://padlet.com/shyni123/DA1/wish/1235291687 Ibrahim https://padlet.com/shyni123/DA1/wish/1235294507
  • 1NF (First Normal Form)
  • 2NF (Second Normal Form)
  • 3NF (Third Normal Form)

    • ]]>     2021-02-24 08:57:28 UTC https://padlet.com/shyni123/DA1/wish/1235294507     Saad A saadalamzeb2002 https://padlet.com/shyni123/DA1/wish/1235294666 Normalization is the process of efficiently organizing data in a database. Ultimately, there are two goals of the normalization process. The first is to remove the same data in more that one table redundant data. The second is to make sure data dependencies makes sense by having only related data stored in the same table. The two ultimate goals highlighted are important as they help reduce the amount of space a database consumes and ensure that data is logically stored.]]> 2021-02-24 08:57:31 UTC https://padlet.com/shyni123/DA1/wish/1235294666 Shirin https://padlet.com/shyni123/DA1/wish/1235298822 Which subject is it closely related to?
    Normalisation is used in most IT dominated fields. It is often applied in data science as a part of data preparation for machine learning.]]>     2021-02-24 08:58:51 UTC https://padlet.com/shyni123/DA1/wish/1235298822     Moeez https://padlet.com/shyni123/DA1/wish/1235301472 0NF:
    The data will be non-atomic
    The fields names might not be unique.
    Repeating attributes.

    1NF:
    It should only have atomic data
    Values stored in a column should be of same domain.
    All data fields must have unique data fields.
    The order of how data is stored does not matter.

    2NF:
    It should be in 1st Normal Form.
    It should not have partial dependency.
    It may have a foreign and primary key. 

    3NF:
    Should be in 2NF.
    It doesn’t have Transitive Dependency. 
    No non-key attribute is transitively dependent on the primary key.]]>     2021-02-24 08:59:39 UTC https://padlet.com/shyni123/DA1/wish/1235301472     Seratul https://padlet.com/shyni123/DA1/wish/1235304638 0NF: It is unnormalized form data is not atomic
    1NF: It is normalized form, data is in atomic form   ]]>     2021-02-24 09:00:34 UTC https://padlet.com/shyni123/DA1/wish/1235304638     Hesham https://padlet.com/shyni123/DA1/wish/1235309266 1) Normalization refers to reducing redundant data from a database]]> 2021-02-24 09:02:06 UTC https://padlet.com/shyni123/DA1/wish/1235309266 Mustafa https://padlet.com/shyni123/DA1/wish/1235319552 2021-02-24 09:05:25 UTC https://padlet.com/shyni123/DA1/wish/1235319552