By Steven Holzner, Bob Howell
Written for builders who have to wake up to hurry on ADO.NET, this ebook covers the ADO.NET item version from begin to end, from database instruments to making information gadgets, from growing internet providers to constructing multi-tier database functions. It additionally covers every thing from home windows kinds sessions and knowledge binding to making ASP.NET net purposes. greater than a reference e-book, the authors mix own adventure and top practices with sensible how-to wisdom. in contrast to another books, this ebook was once written utilizing the respectable unencumber of visible Studio.NET expert, so all examples and code are totally brand new.
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Additional info for ADO.NET Programming in Visual Basic .NET
Unless you want to install it to another location (due to disk space limitations), accept all the defaults. If you are using the MSDE, make sure the location you install to has plenty of disk space because you cannot choose an alternate location for the data files, and by default they are placed in a subfolder under where you installed the MSDE. 0 or 2000 installed, or have access to a server, you may choose not to install the MSDE. They are functionally equivalent and the MSDE is not necessary.
They also manage transactions, and connection pooling. The various parameters for connecting to a database are set via the ConnectionString property. In previous versions of ADO, most of the ConnectionString values were exposed through properties. NET only exposes the ConnectionString. We will enumerate the details of the various values of the ConnectionString in the chapter on the Connection object. Command Class The Command class provides methods for storing and executing SQL statements and stored procedures.
Then if we store the Location ID on each employee record we have a way of linking the employee record to the location record. 16). This establishes a formal relationship between the two tables. 16. Relation defined between Location and Employee tables. Note how the foreign key on tblEmp is linked to the primary key on tblLocation. This relationship defines a one-to-many relation. For every location record, there can be many employee records. In such a relation, the key on the one side of the relation must be unique.
ADO.NET Programming in Visual Basic .NET by Steven Holzner, Bob Howell