In the next section we will take a closer look at ADO's batch updates, what they can offer you, and why they are so important.However, in this section you won't need them to solve the problem of updating a join, because in ADO, joins are naturally updatable.For the latest documentation on Visual Studio 2017, see Update data by using a Table Adapter on docs.After the data in your dataset has been modified and validated, you can send the updated data back to a databaseby calling the method updates a single data table and runs the correct command (INSERT, UPDATE, or DELETE) based on the Row State of each data row in the table.When you first open a Recordset, the current record pointer will point to the first record and the BOF and EOF properties are False.If there are no records, the BOF and EOF property are True.The Update Batch method is used to save all changes in a Recordset to the database.This method is used when you are working on a Recordset in batch update mode.
This should be done in C# and LINQ , I have tried by below logic : var child Projects = db. Where(m = As per above logic : When I updating PPMOProject ID in parent record, I have to check all children's and master children's , if the record is empty I have to update by Immediate record parent, it that parent is empty and need to update by master column ID, if parent record has column ID , should update by Parent ID itself.
So can we conclude that all applications that deal with data are the same and can be built using a common pattern? Other aspects, including scalability and performance, affect and influence the design.
All distributed applications must be scalable to some extent.
For example, should the insert of a row into the previous join result in a new product and also a new supplier, or just a new product?
The Client Data Set/Provider architecture allows you to specify a primary update table (and advanced features actually not covered in the book) and also customize the updates' SQL, as we partially saw in Chapter 14 and we'll further explore in Chapter 16, "Multitier Data Snap Applications." ADO supports an equivalent to cached updates called batch updates, which are similar to the BDE approach.