Selecting Data

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Sorting and Removing Duplicates

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Filtering

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Figure 1

Image 1 of 1: ‘SQL Filtering in Action’

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Calculating New Values

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Missing Data

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Aggregation

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Figure 1

Image 1 of 1: ‘SQL Aggregation’

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Combining Data

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Figure 1

Image 1 of 1: ‘Survey Database Structure’

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Data Hygiene

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Creating and Modifying Data

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Programming with Databases - Python

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Programming with Databases - R

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Figure 1

Image 1 of 1: ‘relevant XKCD’

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