Builtin functions

Reports truncations of string arguments in ISNULL functions.

The ISNULL syntax is ISNULL(check_expression, replacement_value).

According to ISNULL at docs.microsoft.com, replacement_value will be truncated if replacement_value is longer than check_expression.

Example (Microsoft SQL Server):

DECLARE @name1 VARCHAR(2) = NULL;
DECLARE @name2 VARCHAR(10) = 'Example';
DECLARE @name3 VARCHAR(2) = 'Hi';

  -- `@name2` is VARCHAR(10) and will be truncated
SELECT ISNULL(@name1, @name2);

  -- `@name3` is VARCHAR(2) as `@name1` and will not be truncated
SELECT ISNULL(@name1, @name3);

Locating this inspection

By ID

Can be used to locate inspection in e.g. Qodana configuration files, where you can quickly enable or disable it, or adjust its settings.

MssqlBuiltin

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Settings or Preferences | Editor | Inspections | SQL server

Inspection Details
By default bundled with:	CLion 2024.2, DataGrip 2024.2, GoLand 2024.2, IntelliJ IDEA 2024.2, JetBrains Rider 2024.2, PhpStorm 2024.2, PyCharm 2024.2, Qodana for .NET 2024.2, Qodana for Go 2024.2, Qodana for JVM 2024.2, Qodana for PHP 2024.2, Qodana for Ruby 2024.2, RubyMine 2024.2,
Can be installed with plugin:	Database Tools and SQL, 242.22903

Last modified: 11 September 2024