Clientdataset connect to the database table after bt added a column on the bj, type is a Boolean, how to give this on the type of assignment of the default value is false, use the select 0 as bj from bt and then click the dbgrid reminder types cannot be modified as read-only, what method can achieve assigned default values, and the column can be modified?

CodePudding user response:

Increase the calculated type fields

CodePudding user response:

If to put the whole to convert a ClientDataSet data, that can be assigned, but this assignment is not applicable to ClientDataSet updated using the update data, because you mean write 0 as bj in actual table is out of the store.