Things to remember when using ClientDataSet

1. The ResolveToDataSet property of TDataSetProvider determines how the data set is updated. When ResolveToDataSet is False, the update statement is automatically generated by the TSQLResolver class and directly updated to the database. When its value is True, the TDataset type control specified by TDataSetProvider generates an SQL statement to update the data and updates it to the database.

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Origin blog.csdn.net/shaken/article/details/758829