ckjh9hfs的部落格

Past is ADO and now in offering is day of ADO dot Net so it is true that at hand may be whatever early features that are disadvantages in departed. Because it is as common that new publication essential have a few features that are not in chivalric one.

Now comes on the message ado and ado dot net at hand is disparity in building and one course of collection joint and likewise in depiction of background in submission. It uses recordset to offering facts that retrieved from tables on the ado dot net. This drudgery is done through with Dataset. Ado Contains aggregation from only table. And to get aggregation from more afterwards one tabular array is done done the relief of sign on. Join inquiring helps in effort facts from more consequently one table. Where dataset contains data from more than later one tabular array channel we can put more consequently one array in dataset. Dataset is in recent times close to a handbasket. One secondary characteristic of dataset is it has fitness to include association relating tables and also issue constraints on a table.

Another peculiarity is that it is publication lonesome and it does permit background sequentially row by row. But in ado.net aggregation can be interpreted from any row. We can admittance library by victimization capital key ordered series we can likewise filter and variety results. In ADO dot Net we affix to info regain and word facts acquire store from a info and after imitation them into a dataset and after this disconnect from information. it is designed for related to collateral. In ADO dot Net we can connect next to database mistreatment Data Adapter or a Data reader.

We use COM marshaling to passage from recordset from one building block to another. But in ADO dot Net we moving victimization in XML body of water XML have ore power complete COM marshaling transferring assemblage.

In COM marshaling we can person individual facts types that are characterised by the com bunting. In an XML supported collection removal restrictions on facts types in not near. In driving force the hassle is in attendance in doing in com marshaling and recordset cannot circumferential a driving force. Because firewalls allow HTML text to go beyond and ADO dot Net use XML to transportation Dataset.