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SQL Basics
SQL Basics
Word filtering
Imagine that we want to extract all the hybrid cars from our database. As you understand, doing it manually is a worthless job and has to be automated.
Surely it has already been implemented! To filter observations based on columns with text use WHERE statement. For example,
SELECT * FROM audi_cars WHERE fueltype = 'Hybrid'
This query will return all the Hybrid cars.
Please note, that in that case, you have to use single quotes, not double!
Swipe to start coding
From audi_cars table extract only cars with Automatic transmission. Extract all the columns.
Solution
Passez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessousMerci pour vos commentaires !
Word filtering
Imagine that we want to extract all the hybrid cars from our database. As you understand, doing it manually is a worthless job and has to be automated.
Surely it has already been implemented! To filter observations based on columns with text use WHERE statement. For example,
SELECT * FROM audi_cars WHERE fueltype = 'Hybrid'
This query will return all the Hybrid cars.
Please note, that in that case, you have to use single quotes, not double!
Swipe to start coding
From audi_cars table extract only cars with Automatic transmission. Extract all the columns.
Solution
Passez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessousMerci pour vos commentaires !
Passez à un bureau pour une pratique réelleContinuez d'où vous êtes en utilisant l'une des options ci-dessous