Home > Back-end >  Online consulting
Online consulting

Time:10-30

I control connection is this: ADOConnection + ADOquery + DataSetProvider + clientdataset + datasource + dbgrideh

SQL:=select * from tabfloor a inner join tabuser b on a.u serid=b.u serid
(1) want to consult with clientdataset. Append how to operate on multiple table joins?
(2) to insert query is to use the same clientdataset components?
(3) the clientdataset to open to open the first SQL insert with append again?
For instance, please, thank you,,,

CodePudding user response:

Several years didn't contact with three layers model, to help her comments, by the way,
1. As to multi-table operation not???????
2. Yes, the clientdataset he would sign state of each data,
3. You are connected to the remote data clientdataset, append to the open before, otherwise can also createdataset, append,

Hope to be able to help you,

CodePudding user response:

Is not very understand, always the first one to answer, can understand is not OPEN can use APPEND