By Steven Holzner, Bob Howell
Written for builders who have to wake up to hurry on ADO.NET, this booklet covers the ADO.NET item version from begin to end, from database instruments to making info gadgets, from growing internet companies to constructing multi-tier database functions. It additionally covers every little thing from home windows types sessions and knowledge binding to making ASP.NET internet functions. greater than a reference ebook, the authors mix own adventure and top practices with functional how-to wisdom. in contrast to another books, this booklet was once written utilizing the professional liberate of visible Studio.NET specialist, so all examples and code are absolutely modern.
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Extra info for ADO.NET Programming in Visual Basic .NET
Database Projects Database projects provide another method of manipulating databases. With the database project, you can create scripts and queries to execute on an SQL Server or MSDE database. You can create schema change scripts, or SQL queries. You can also use source code control to manage the scripts. The database project provides similar functionality to the Query Analyzer that comes with the full version of SQL Server. The handy part of using a database project is that now you can include it in your solution and track the various stored procedures and queries that are used by the solution.
Use int or numeric for this. It is possible for two reals with the same apparent value to fail equality tests because they are not really the same number. • DateTime And its variations. Holds a date/time value. The variations limit the range of dates accepted. • Text/nText A pointer to a large amount of textual data. The size of the text is limited only by disk space. • Image/nImage/Binary A pointer to a large amount of binary data, such as a picture or sound image. Similar to text except will accept any binary data.
17. 17. Referential integrity settings. • Check existing data on creation This option tells SQL Server to validate all the DRI rules when the new relation is saved initially. Be careful with this because on very large tables this could take some time. • Enforce relationship for replication This tells SQL Server to enforce the relation when replicating data. Unless you will be using replication, this is of no concern to you. If you are using replication, you may want to turn this off if you define a relationship after a table that is in.
ADO.NET Programming in Visual Basic .NET by Steven Holzner, Bob Howell