尝试将sql查询的结果舍入为2位小数

在以下查询中，我尝试返回总和行小数点后2位（.00）的数据：

SELECT
  CONVERT(varchar, YEAR(COALESCE(release_date, requested_date)))
  + RIGHT('00' + CONVERT(varchar, MONTH(COALESCE(release_date, requested_date))), 2) AS yrmnth,
  salesrep,
  customer_name,
  SUM(price_per_ea * COALESCE(open_release_qty, open_order_qty)) AS ext_price

使用“选择”菜单中的功能：

round(SUM(price_per_ea * COALESCE(open_release_qty, open_order_qty)),2)

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您可以使用convert来控制格式

SELECT
CONVERT(VARCHAR, YEAR(COALESCE(release_date, requested_date))) 
    + RIGHT('00' + CONVERT(VARCHAR, 
 MONTH(COALESCE(release_date, requested_date))),2) as yrmnth
,salesrep
,customer_name
,  Convert(decimal(12,2), 
     SUM(price_per_ea * COALESCE(open_release_qty, open_order_qty)))  as ext_price