Morgan.

if ("Java".equals(language)) {
   knowledge = true;
}

if (language == "C#" || language == "C++") {
   knowledge = true;
}

if (language === "JavaScript" || framework === "ReactJS" ||
    framework === "ReactNative" || framework === "Express") {
   knowledge = true;
}

if ($language === "PHP") {
   $knowledge = true;
}

if language == "Python" or framework == "Django":
   knowledge = True

If language = "VB" Then
   knowledge = True
End If

IF (@dbengine = 'MSSQL' OR @language = 'SQL')
BEGIN
   SET @knowledge = 1;
END;

IF (dbengine IN ('MYSQL', 'MARIADB')) THEN
   SET knowledge = 1;
END IF;

IF dbengine = 'POSTGRES' THEN
   knowledge := 1;
END IF;

SELECT CASE
   WHEN :dbengine = 'SQLITE' THEN 1
   ELSE :knowledge
END AS knowledge;