Finding the Intersection of Two Tables
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Hope this post finds you in good health and spirit.
Structured Query Language, abbreviated as SQL, is a domain-specific language used in programming and designed for managing data held in a relational database management system, or for stream processing in a relational data stream management system.
An good developer must be familiar with a few commands in SQL because it is such a strong development tool. The SQL queries listed below are important for coding and optimization. Almost every system that interacts with a SQL database will be affected by each query in the SQL tutorial.
Finding the Intersection of Two Tables
Undoubtedly the whole reason that a relational database exists in the first place is to find matching records in two tables! The JOIN statement accomplishes this core objective of SQL and makes the task easy. Here we are going to fetch a list of all records which have matches in the Customers and Orders tables:
SELECT ID FROM Customers INNER JOIN Orders ON Customers.ID = Orders.ID
So, that’s all in this blog. I will meet you soon with next stuff .Have a nice day !!!
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