阅读背景:

需要在其他表中复制行的相关数据。修改一行

来源:互联网 

My company has a database with Project related data. At times, they would like to Revise a project, keeping the old version and copying it so they can work on a copied version. The project table has a revision field that defaults to 0 and should increment by one when they click a revise button on the front-end website. The hierarchy would look like:My company has a database with Project related




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