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02. Data Manipulation

Data Manipulation

Exercise 2 for KNIME User Training
- Concatenate data from two different sources
- Bring values from a reference table to the actual table using the Cell Replacer node
- Modify String values
- Join data from multiple tables
- Remove duplicates in the data

Activity: Data Manipulation & Aggregation Activity I - Part 3 - Join all data into one table using a series of joiner nodes (use "CustomerKey" as the joining column) Activity I - Part 1 - Concatenate web activity data from the old and new systems Activity I - Part 2 - Replace the written sentiment values with the numeric sentimentscores Activity II - Filter out duplicate rows - Make sure that all product names in the product data spreadsheet are written in lower case letters(String Manipulation or Column Expressions) - Remove the column Sentiment Rating (Table Manipulator) - Calculate the mean age of the customers per product (GroupBy node) WebActivity.sqliteWebActivityOld Web Data Sentiment Rating+Sentiment DescriptionDemographicsand Historyfrom SAS fileProducts<-> CustomerKeySentiment Evaluation from KNIMESQLite Connector DB Reader DB Table Selector CSV Reader CSV Reader CSV Reader Excel Reader Table Reader Activity: Data Manipulation & Aggregation Activity I - Part 3 - Join all data into one table using a series of joiner nodes (use "CustomerKey" as the joining column) Activity I - Part 1 - Concatenate web activity data from the old and new systems Activity I - Part 2 - Replace the written sentiment values with the numeric sentimentscores Activity II - Filter out duplicate rows - Make sure that all product names in the product data spreadsheet are written in lower case letters(String Manipulation or Column Expressions) - Remove the column Sentiment Rating (Table Manipulator) - Calculate the mean age of the customers per product (GroupBy node) WebActivity.sqliteWebActivityOld Web Data Sentiment Rating+Sentiment DescriptionDemographicsand Historyfrom SAS fileProducts<-> CustomerKeySentiment Evaluation from KNIMESQLite Connector DB Reader DB Table Selector CSV Reader CSV Reader CSV Reader Excel Reader Table Reader

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On NodePit since: 2024-02-03
Last update: 2024-12-17
Created with KNIME version: v4.4.0
Tags: ETLconcatenatejoinpreprocessingremove duplicatestransformreplaceeducation

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