#sql
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In the previous post, we got comfortable with inner joins and left joins. we will cover the remaining join types right join, full outer join, and self...
When working with relational databases, data often resides across multiple tables. That's where joins come into play! Joins allow us to combine data...
Once we have mastered basic data retrieval with SELECT, the next step is learning how to manipulate and organize that data in more powerful ways. In...
This section explains how to use ORDER BY, LIMIT and AS in SQL. · Sorting Data with ORDER BY We don’t always want our results in the order they are...
This section explains how to use select, where and distinct in SQL. · When working with databases, one of the most common tasks is fetching the data, and...
Now that we have set up our tables and picked the right data types, it's time to make sure the data entering those tables is valid. That’s where SQL...
