我就廢話不多說了,大家還是直接看代碼吧~
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補充:Postgresql 連表更新字段語法 update
下面這段sql本來目的是想更新條件下的數據,可是這段sql卻更新了整個表的數據。sql如下:
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UPDATE tops_visa.visa_order SET op_audit_abort_pass_date = now() FROM tops_visa.visa_order as t1 INNER JOIN tops_visa.visa_visitor as t2 ON t1. ID = t2.order_id WHERE t1.op_audit_abort_pass_date IS NULL AND ( t2. STATE = 'pch_abort_op_audit_pass' OR t2. STATE = 'pvd_abort_op_audit_pass' ) |
正確的寫法有多種,如下方法也能夠實現正確的數據庫修改:
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UPDATE tops_visa.visa_order as t1 SET op_audit_abort_pass_date = now() FROM tops_visa.visa_visitor AS t2 WHERE t1.ID = t2.order_id AND t1.op_audit_abort_pass_date IS NULL AND ( t2. STATE = 'pch_abort_op_audit_pass' OR t2. STATE = 'pvd_abort_op_audit_pass' ) |
以上為個人經驗,希望能給大家一個參考,也希望大家多多支持服務器之家。如有錯誤或未考慮完全的地方,望不吝賜教。
原文鏈接:https://www.cnblogs.com/SeNaiTes/p/11447935.html