Tag: joins

Joins in SQL

By Rohit Dhanwani View presentation here: Joins in SQL presentation

May 17, 2019 0

Joins : A difference in extracting the data

Joins are used to combine tuples (rows) from multiple tables. There can be multiple numbers of joins in the query statement. The tables are interlinked by joins using Primary Key and Foreign Key. Joins can be of two types: Inner joins Outer joins Inner joins are used to extract the common records where the keys…
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May 11, 2019 0