Interested to Buy Any Domain ? << Click Here >> for more details...
Can you explain the difference between an ADO.NET Dataset
and an ADO Recordset?
- 3 Answers
- 5968 Views
- Siebel Systems, I also Faced
- E-Mail Answers
Answer Posted / 1647264
Let's take a look at the differences between ADO Recordset and ADO.Net DataSet:
1. Table Collection: ADO Recordset provides the ability to navigate through a single table of information. That table would have been formed with a join of multiple tables and returning columns from multiple tables. ADO.NET DataSet is capable of holding instances of multiple tables. It has got a Table Collection, which holds multiple tables in it. If the tables are having a relation, then it can be manipulated on a Parent-Child relationship. It has the ability to support multiple tables with keys, constraints and interconnected relationships. With this ability the DataSet can be considered as a small, in-memory relational database cache.
2. Navigation: Navigation in ADO Recordset is based on the cursor mode. Even though it is specified to be a client-side Recordset, still the navigation pointer will move from one location to another on cursor model only. ADO.NET DataSet is an entirely offline, in-memory, and cache of data. All of its data is available all the time. At any time, we can retrieve any row or column, constraints or relation simply by accessing it either ordinarily or by retrieving it from a name-based collection.
3. Connectivity Model: The ADO Recordset was originally designed without the ability to operate in a disconnected environment. ADO.NET DataSet is specifically designed to be a disconnected in-memory database. ADO.NET DataSet follows a pure disconnected connectivity model and this gives it much more scalability and versatility in the amount of things it can do and how easily it can do that.
4. Marshalling and Serialization: In COM, through Marshalling, we can pass data from 1 COM component to another component at any time. Marshalling involves copying and processing data so that a complex type can appear to the receiving component the same as it appeared to the sending component. Marshalling is an expensive operation. ADO.NET Dataset and DataTable components support Remoting in the form of XML serialization. Rather than doing expensive Marshalling, it uses XML and sent data across boundaries.
5. Firewalls and DCOM and Remoting: Those who have worked with DCOM know that how difficult it is to marshal a DCOM component across a router. People generally came up with workarounds to solve this issue. ADO.NET DataSet uses Remoting, through which a DataSet / DataTable component can be serialized into XML, sent across the wire to a new AppDomain, and then Desterilized back to a fully functional DataSet. As the DataSet is completely disconnected, and it has no dependency, we lose absolutely nothing by serializing and transferring it through Remoting.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
What’s the use of “GLOBAL.ASAX” file?
What are the different properties of server control that exists?
I have an external link in my application say www.xyztest.com. Today this site works on http protocal. Tommorow it may run on https. So i cant hardcore the protocal in the site. When a user clicks on the link how can i know if the external site works on http or https and takes him to that place?
What is the typical session identifier?
What is a swagger in web api?
COM+ Used ________________ Isolation Level
How can you use a custom controls in ASP.NET application?
To display data in a Repeater control which template you provide?
Explain how cookies work. Give an example of cookie abuse.
What are standard controls?
What is application variable?
How do I send an email message from my ASP.NET page?
What is the default timeout for a cookie?
How can I open ashx file in mobile?
Can we store object in viewstate?
