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The process was straightforward: We created a disconnected Recordset; we made changes to the data; we called the Update Batch method; and enchantment happened.If we had carefully crafted SQL statements or stored procedures, it didn't matter.When creating Data Table objects, the Fill operation normally creates only column name metadata.However, if the Missing Schema Action property is set to Add With Key, appropriate primary keys, and constraints are also created.The Data Adapter is the gatekeeper that sits between our Data Set and the data source.Instead of using Command objects directly with a Connection, the Data Adapter manages our Command objects as they interact with the data source.If the original values are not matched in the destination database, no rows will get updated.This link to the Sql Command Builder may help : that link, try to understand : "ad Criteria All Cols" as that is what Sql Command Builder uses.
Some of Microsoft's documentation suggests that our original Recordset was re-created on the server, and the records scrolled through, reconciling the changes between the Recordset from the client and its half-sibling on the server, a very inefficient process. The object provides four properties that allow us to control how updates are made to the server: Select Command, Update Command, Insert Command, and Delete Command.
Adds or refreshes rows in the Data Set to match those in the data source using the Data Set name, and creates a Data Table named "Table".
The Fill method retrieves rows from the data source using the SELECT statement specified by an associated Select Command property.
The user updates the excel sheet and I need to update the SQL values.) I am setting the dt.
Row State to modified in an effort to invoke the Update. (Previous test show my SQL permissions and connection is good, I can modify the table.) connection To SQL = new Sql Connection(SQLConn String); connection To SQL.