Answer to Question #171959 in Databases | SQL | Oracle | MS Access for william

Question #171959

Describe in detail Variables in SQL?


1
Expert's answer
2021-03-18T02:46:46-0400

A SQL variable is an object which can hold a single data value of a specific data types. It is used in batches and scripts.

DECLARE statement initializes a variable by assigning it a name and a data type.


DECLARE @VarA int

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