Difference between FACT and DIMENSION in Data Warehousing | dimensional modelling in data warehouse

Ғылым және технология

#etlqalabs #datawarehousingconcept #etltesting
In this session - we will understand what is difference between fact and dimension in data warehousing . Also in detail explanation about fact and dimension tables.

Пікірлер: 32

  • @ArifRaza
    @ArifRaza8 ай бұрын

    Thanks a lot sir. Wonderful explanation!

  • @saudaminideshmukh2272
    @saudaminideshmukh22722 жыл бұрын

    thank you sir, well explained

  • @koppalakalyan8256
    @koppalakalyan82562 жыл бұрын

    Thank you for the information sir

  • @sonurawat7069
    @sonurawat70692 жыл бұрын

    first of all thank you so much sir for this usefull video. please make 1 video on snowflake schema in a similar way.

  • @akshaykumarannigeri2458
    @akshaykumarannigeri24582 жыл бұрын

    Sir as a etl tester we should check both dimension tables and fact tables with source data or only we have to check fact tables with source data? Please reply

  • @shobharanipoojari3569
    @shobharanipoojari35692 жыл бұрын

    Hii sir thanks for all information .plese explain only flat file validation topic

  • @techwellness6142
    @techwellness61422 жыл бұрын

    In the Last query near end of video , why is 'JOIN' not being used ? Isnt that incorrect?

  • @SwaKaran
    @SwaKaran Жыл бұрын

    Hello sir I have been watching your videos ....this is helping me a lot to understand ETL...is there any chance to talk to you?

  • @prateekchokkara3997
    @prateekchokkara39972 жыл бұрын

    Hi sir, very informative video. I know u sir we were working in Business One technologies.

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Hey Prateek, Good to see you here. Keep learning and keep sharing

  • @prateekchokkara3997

    @prateekchokkara3997

    2 жыл бұрын

    @@etlqalabs5048 Thanku sir.

  • @divyanshtrivedi7716
    @divyanshtrivedi77162 жыл бұрын

    if number of rows r more in fact table then dimension why it's called vertical table it shld be horizontal??

  • @mustaqahmedattar8462
    @mustaqahmedattar84622 жыл бұрын

    Sir can you provide PDF notes along with vedio

  • @waseemAkram-qc2vm
    @waseemAkram-qc2vm2 жыл бұрын

    Hi sir, this 4 videos in datawarehouse playlist covers all data warehouse concepts or any additionally need to learn after this 4 videos to cover all datawarehouse concept

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Hi Waseem , These are foundation videos to begin , I will add more to the list when time permits

  • @waseemAkram-qc2vm

    @waseemAkram-qc2vm

    2 жыл бұрын

    @@etlqalabs5048 thank you so much sir it's helps alot for new learns

  • @ashokrajann9351
    @ashokrajann93512 жыл бұрын

    Hi sir What is the difference between Data warehousing testing Database testing ETL testing Is the above all 3 comes under functional testing?

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Please Watch recent upload for these questions

  • @BasitAIi
    @BasitAIi2 ай бұрын

    share the file as well

  • @DeepakKumar-sh6hl
    @DeepakKumar-sh6hl2 жыл бұрын

    which tables are loaded first fact or dimension and why ?

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Dimension table is loaded first and then fact . The reason behind is fact table contents foreign key from fact table which is primary key in dimension table and due to referential integrity we need to load the table with primary key and then then table containing foreign key to avoid data load rejection. Hope this helps

  • @DeepakKumar-sh6hl

    @DeepakKumar-sh6hl

    2 жыл бұрын

    @@etlqalabs5048 thankyou so much for answering

  • @pmk_full_facts_3224
    @pmk_full_facts_32242 жыл бұрын

    What is top down approach and bottom apprach

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Top down and bottom up are data warehouse design method , it's part of data warehousing concept. Let me explain you a bit here 1) Top down approach- data warehouse is built first and then specific datamarts are build E.g company ( Data warehouse) then then each department in company like sales , HR, Marketting etc can be considered as datamarts However In Bottom up approach , datamarts are deisgned first and then data warehouse , you can consider the same example for data warehouse and datamarts as in top down approach, hope this is clear

  • @pmk_full_facts_3224

    @pmk_full_facts_3224

    2 жыл бұрын

    Yes cleared bro.

  • @pmk_full_facts_3224

    @pmk_full_facts_3224

    2 жыл бұрын

    Thank you soo much

  • @kopurirajesh1347

    @kopurirajesh1347

    2 жыл бұрын

    How we can do validation testing in dimensional table?

  • @vinodkolar2190
    @vinodkolar21902 жыл бұрын

    Sir, can you please do video on real time project?

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    Sorry , please eloborate your request so I can understand on what topic do you need me to do video ? If you are looking for real time scenarios in ETL Testing, do watch ETL Testing be playlist

  • @vinodkolar2190

    @vinodkolar2190

    2 жыл бұрын

    @@etlqalabs5048 real time project on ETL testing

  • @etlqalabs5048

    @etlqalabs5048

    2 жыл бұрын

    @@vinodkolar2190 great then please watch my ETL Testing playlsit on this channel itself, hope you will find good stuff

  • @mustaqahmedattar8462
    @mustaqahmedattar84622 жыл бұрын

    Want to contact you

Келесі