Oracle 使用选择更新查询

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时间:2020-09-10 02:50:16  来源:igfitidea点击:

Oracle update query with select

oracle

提问by Andromeda

I have two tables with same columns. i want to update table1 records whose status is 'Linked' by the corresponding values from table2.

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

回答by Michael Pakhantsov

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