MSSQL 批量Update

1 UPDATE dbo.WX_TWODIMENCODE_INFO SET 
2     wti_scan_views=t.count FROM (
3     SELECT COUNT(*) AS 'count',lci_erector_scene_id FROM LOTTERY_CODE_INFO
4        WHERE lci_type=40 AND lci_erector_code_scantime IS NOT NULL
5        GROUP BY lci_erector_scene_id
6     ) AS t
7     WHERE wti_scene_id=t.lci_erector_scene_id
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原文地址：https://www.cnblogs.com/szfhquan/p/6178047.html