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02_​Data_​Merging_​Solution

Data Merging - Solution

Solution to exercise 2 for the KNIME Analytics Platform for Data Wranglers course
- Convert a column from number to string
- Concatenate data from two different sources
- Join two database tables (using the DB Joiner node) and read database data into KNIME
- Join two local tables






Exercise 2: Join and ConcatenateIn this exercise you combine data by concatenating and joining tables. 2) Join the information on the online purchases with the prices of the products 2.1 Join the "TransactionsOnline" and "ProductNrAndPrize" tables directly on the database (DB Joiner) 2.2 Read the joined table into KNIME 3) Add the location information to each purchase in a store based on the StoreID (Joiner node) 1) Concatenate customer information data from the two different systems into one table 1.1 Convert the "Newsletter" column from number to string in the table from the system 1 1.2 Concatenate the customer data from the two systems Product ID and PriceTransactions OnlineCustomer InformationSystem 1Store InformationCustomer InformationSystem 2Transactions StoreNewsletter to StringConnect to Database DB Table Selector DB Table Selector DB Joiner DB Reader DB Reader Concatenate CSV Reader Excel Reader Table Reader Table Reader Number To String SQLite Connector Joiner Exercise 2: Join and ConcatenateIn this exercise you combine data by concatenating and joining tables. 2) Join the information on the online purchases with the prices of the products 2.1 Join the "TransactionsOnline" and "ProductNrAndPrize" tables directly on the database (DB Joiner) 2.2 Read the joined table into KNIME 3) Add the location information to each purchase in a store based on the StoreID (Joiner node) 1) Concatenate customer information data from the two different systems into one table 1.1 Convert the "Newsletter" column from number to string in the table from the system 1 1.2 Concatenate the customer data from the two systems Product ID and PriceTransactions OnlineCustomer InformationSystem 1Store InformationCustomer InformationSystem 2Transactions StoreNewsletter to StringConnect to Database DB Table Selector DB Table Selector DB Joiner DB Reader DB Reader Concatenate CSV Reader Excel Reader Table Reader Table Reader Number To String SQLite Connector Joiner

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To use this workflow in KNIME, download it from the below URL and open it in KNIME:

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Created by: Maarit Laukkanen
Created at: 2019-10-18
On NodePit since: 2022-10-29
Last update: 2024-11-23
Created with KNIME version: v4.6.1
Tags: ETLconcatenatedatabasejoinpreprocessingeducation

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