使用 Sql 开发人员无法更新 table

Question

问题.. 创建一个 SQL 更新声明，将 P_DISCOUNT 供应商在 TN 或佛罗里达州我有 2 个 table，我正在尝试引用包含状态的供应商 table，p_discount 位于产品 table.

中

update PRODUCT
set P_DISCOUNT = 2 * P_DISCOUNT
where VENDOR.V_STATE in 
  (select VENDOR.V_STATE from VENDOR where  VENDOR.V_STATE = ('FL','TN'))

任何建议都很好

谢谢，

Answer 1

update PRODUCT set P_DISCOUNT = 2 * P_DISCOUNT where V_STATE in
(select VENDOR.V_STATE from VENDOR where VENDOR.V_STATE in ('FL','TN'))

Answer 2

试试这个查询：

update PRODUCT
set P_DISCOUNT = 2 * P_DISCOUNT
where V_CODE in 
    (select VENDOR.V_CODE from VENDOR where VENDOR.V_STATE IN ('FL','TN'))

您正在根据连接字段而不是其中一个表中的任何字段过滤条件

Working with Sql Developer unable to update table