Updating records in dataset

You need to create Command objects for the Update Command of each of the Data Adapters. Ole Db Command("Update My Table Set [Field 1][email protected] Where [Field 2]= @Field2 and [Field 3] [email protected]", DBCon) update Command.

Write Update SQL query, create command object and set it as a dataadapter updatecommand.

Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the specified array in the Data Set.(Inherited from Db Data Adapter.)Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the Data Set with the specified Data Table name.(Inherited from Db Data Adapter.)Updates the values in the database by executing the respective INSERT, UPDATE, or DELETE statements for each inserted, updated, or deleted row in the specified Data Table.(Inherited from Db Data Adapter.) fills a Data Set, it will create the appropriate tables and columns for the returned data if they do not already exist.

However, primary key information is not included in the implicitly created schema unless the create the schema of the Data Set, including primary key information, before filling it with data using Fill Schema.

In our last section, we covered creating our Data Set and Table Adapters for our Members and Categories tables.

But for our purposes, we need select and insert queries that allow passing of parameters.

by Nannette Thacker As seen in previous sections of this Tutorial, our goal is to import data from an uploaded Excel Spreadsheet into our database tables.This will allow future additions to the same spreadsheet and future imports, without inserting duplicate records.So we will now create another query for our table adapter that Gets Members by their Name and Address.This mechanism provides distributed and fault tolerant service and was designed to avoid a single large central database.The Domain Name System also specifies the technical functionality of the database service that is at its core. DBConcurrency Exception: Concurrency violation: the Update Command affected 0 of the expected 1 records.

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