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Post by juthi5019 on Dec 5, 2023 6:20:32 GMT
From creating databases to modifying them, querying databases to updating data. SQL is used for many different purposes, including reporting and data analysis, creating user interfaces, and creating web applications. However, to use it, you need to spend some time and practice basic queries. Once we learn this, we will be able to create entire databases. For example: Using the RANK() analytical function to calculate the sales ranking of products in each country, which will be useful for e-commerce stores: SELECT country, product, sales, RANK() OVER (PARTITION C Level Contact List BY country ORDER BY sales DESC) AS rank FROM sales_table; For travelers, you can create an analytical function LAG() to calculate the difference between. The current and previous temperature values for each city: SELECT city, date, temperature, temperature – LAG(temperature) OVER (PARTITION BY city ORDER BY date) AS diff FROM weather_table; The key issue is what data we provide to BigQuery. Then, using SQL, we can freely manipulate the data in many ways. Extract the Nectar from data to our online activities.
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