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Please enable JavaScript in your browser settings or update your browser.Challenge: Unique combinations | Practicing
SQL Basics
course content

Conteúdo do Curso

SQL Basics

SQL Basics

1. Selecting
The very first meet with the databaseSELECTing certain columnsLIMITing resultsUnique values from columnUnique values from multiple columnsHow many?How many unique?AliasesTables aliases
2. Filtering
Word filteringNumber filteringCombining conditionsFiltering by numeric intervalMultiple filtering on one columnLIKE filteringNOT like this!
3. Aggregating
MINimal and MAXimal valuesSUMming valuesMean valuesROUNDing
4. Sorting
Sorting by one columnSorting in DESCending orderThe cheapest carSorting by multiple columns
5. Grouping
What is grouping?More aggregate statistics!Grouping by multiple columnsThe cheapest combinationHAVING some conditionsLeast consuming carsFiltering group size
6. Practicing
Challenge: Unique combinationsChallenge: Average Q-series cars priceChallenge: The cheapest new A-series carsChallenge: Relation between engine size and fuel consumptionChallenge: Mileage and manufacture year - is there relation?Challenge: Average price for each model and yearChallenge: The most expensive transmission + engine size combinations

Challenge: Unique combinations

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Seção 6. Capítulo 1
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Challenge: Unique combinations

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Seção 6. Capítulo 1
toggle bottom row

Challenge: Unique combinations

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo

Tudo estava claro?

Tarefa

From the audi_cars table extract all the unique combinations of model, transmission, and fueltype

Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
Seção 6. Capítulo 1
Mude para o desktop para praticar no mundo realContinue de onde você está usando uma das opções abaixo
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