postgresql 更新大量資料表

postgresql sql

ioveasdkre 2022-01-07 15:25:42 ‧ 989 瀏覽

我現在有表 well_info 跟 well_test
要更新資料但是他一直抱錯找不到原因

語法如下
update well_info as we
set we.site_name = up.site_name
from well_test as up
where we.site_no = up.site_no

錯誤如下
ERROR: column "we" of relation "well_info" does not exist
LINE 2: set we.site_name = up.site_name
^
SQL 状态: 42703
字符: 28

powerc iT邦研究生 5 級 ‧ 2022-01-07 15:47:24 檢舉

set site_name = up.site_name，不用加we

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海綿寶寶

iT邦大神 1 級 ‧ 2022-01-07 16:28:20

最佳解答

純真的人

iT邦大師 1 級 ‧ 2022-01-07 16:24:58

應該是這樣的吧~

update well_info
set site_name = well_test.site_name
from well_test
where well_info.site_no = well_test.site_no

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