ReferenceSQL ReferenceSQL FunctionsfunctionsIS_VARCHARVersion: 24.3.xOn this pageIS_VARCHARCategories: DatatypeIS_VARCHARReturns TRUE if the input expression is a varchar value.SyntaxIS_VARCHAR(expression any) → booleanexpression: Input expression.ExamplesIS_VARCHAR exampleSELECT IS_VARCHAR(column_name)-- True