用select选择Oracle更新查询

Question

我有两个具有相同列的表。我想通过table2中的相应值更新状态为“已链接”的table1记录。

table 1
ID              STATUS       VOUCHER
'T010000020 Not Linked      null
'T010000021 Linked          null
'T010000024 Not Linked      null
'T010000026 Linked          null

 table 2
 ID              STATUS       VOUCHER
'T010000020 Not Linked      null
'T010000021 Linked          11234
'T010000024 Not Linked      null
'T010000026 Linked          5423

Answer 1

 UPDATE Table1 t1
   SET Voucher = (SELECT Voucher FROM
                  Table2 t2 WHERE t2.Id = t1.Id
                  and t2.Status = 'Linked')
 WHERE Status = 'Linked'