DF189: Explicit length is not specified for varying-length character data type.
The topic describes the DF189 T-SQL code analysis rule.
Category
BEST PRACTICE
Message
Explicit length is not specified for varying-length character data type.
Description
It is recommended to explicitly specify data length to prevent data truncation errors.
Noncompliant code example
CREATE TABLE dbo.DemoTable(code VARCHAR NOT NULL)
GO
Compliant solution
CREATE TABLE dbo.DemoTable(code VARCHAR(128) NOT NULL)
GO
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