PIVOT in SQL Server
PIVOT is the SQL SERVER Syntax which is used in Data Transposing. This operation is useful when we want to rotate the result set of a query to make it more readable or to analyze it in a different way.
Syntax:
SELECT . . .
FROM (
SELECT . . .
FROM <Table Name>
) AS <Some Alias>
PIVOT (
<Column name or Aggregate>
FOR <Transpose Column> IN (
<Column Names...>
)
) AS <Some Alias>;
Explanation of Syntax:
- . . . is the list of columns to be selected.
- <Transpose Column> is the column to be transposed.
- <Column name or Aggregate> is the column for values or some aggregate function.
Reverse PIVOT Table in SQL Server
In SQL Server, the PIVOT operation is a powerful feature that allows you to transform rows into columns, providing a convenient way to structure and analyze data. However, there are situations where we may need to reverse this operation, converting columns back into rows. This process is commonly known as “unpivoting” or “reverse PIVOT”. The UNPIVOT
operator in SQL Server performs the reversal of the PIVOT operation. In this article, we will learn bout PIVOT and UNPIVOT in detail along with its syntax, practical examples and so on.