DF046: Asterisk instead of a column list is used in the SELECT statement.
The topic describes the DF046 T-SQL code analysis rule.
Category
BEST PRACTICE
Message
Asterisk instead of a column list is used in the SELECT statement.
Description
It is recommended to explicitly specify columns in the select list. Using SELECT * FROM can create issues such as unreliable column order, unnecessary network load, and query performance problems.
Noncompliant code example
SELECT * FROM HumanResources.Employee
GO
Compliant solution
SELECT BusinessEntityID,NationalIDNumber,LoginID
FROM HumanResources.Employee
GO
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