Brief Description About Identity, Union, Union All And Intersect In SQL Server

Описание к видео Brief Description About Identity, Union, Union All And Intersect In SQL Server

IDENTITY property in SQL Server is used to generate an auto-incrementing numeric value for a column
UNION operator is used to combine the result sets of two or more
UNION ALL is similar to UNION, but it does not remove duplicate rows
NTERSECT operator returns only the rows that are common to the result sets of two or more SELECT queries. Get all brief description About these Topic

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