SELECT d.location, d.continent, d.date, d.population, v.new_vaccinations,
SUM(CONVERT(int, v.new_vaccinations)) OVER (PARTITION BY d.location ORDER BY d.location,d.date) AS rolling_total_vaccinations
FROM PortofolioProject..coviddeaths d
JOIN PortofolioProject..covidvaccinations v
ON d.location = v.location AND d.date = v.date
WHERE d.continent IS NOT NULL
ORDER BY d.location , d.date
错误说明: 消息 102,级别 15,状态 1,第 85 行 “订单”附近的语法不正确。