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How many records do I have in database table
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How many records do I have in database table
http://www.dotnetindex.com/articles/1404_How_many_records_do_I_have_in_database_table_.asp
Sometimes we worry about limits of database table and we need to know how manay recods we have. In ASP we could count all recods using a loop. But if we have a small piece of knowledge about SQL script, our script works better and faster.
ASP > Tips and Tutorials > Database-related
Oct 10, 2006
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Other links at ASP > Tips and Tutorials > Database-related
Sometimes, we would have chance to convert our existing database or create a new database. Some decisions IT professionals need to make are scary, and choosing database software is one of them. This overview aims to describe how to set database connections with some common database software. Hopefully, you would find it useful
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Let's see what's going on a fresh example
Let's see what's going on a fresh example
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The power of Active Server Pages comes through when we tie databases to our web sites. To connect to a database, ASP uses what is called ActiveX Data Objects, or ADO for short. ADO comes with ASP, and can be used easily from your ASP pages.
In this tutorial we will show you how to connect to our Access database called 'examples.mdb' and retrieve all the records from the table 'cars'.
At first we must create an instance of the connection object and feed it the location of the database we wish to connect to and the driver that we intend to use. For these purposes we will use a connection string. You can choose an ODBC or an OLEDB connection string. We will use OLEDB for our example as it's faster and more stable. Next, we should open the connection to the database:
In this tutorial we will show you how to connect to our Access database called 'examples.mdb' and retrieve all the records from the table 'cars'.
At first we must create an instance of the connection object and feed it the location of the database we wish to connect to and the driver that we intend to use. For these purposes we will use a connection string. You can choose an ODBC or an OLEDB connection string. We will use OLEDB for our example as it's faster and more stable. Next, we should open the connection to the database:
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ADO is used to query the data, and the underlying database may be MySQL, SQL Server, Access, Oracle, or any other major RDBMS. Unlike many other articles, complete examples are presented, which may be copied into a file and run directly. Techniques for optimizing the output of tabular data are presented first, followed by techniques for optimizing more complex tabular data typical of reports. The appendix contains instructions for configuring the tests, links to references, and books suggestions.
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Data repeaters in .NET are very usefull to display database records onto screen. But usually, in a real world situation, you don?t have enough functionality with 1 repeater. Take for example some kind of menu structure. You want to display a category, but every category can have 0 or more subcategories. With 1 repeater, this cannot be done in a simple way. In .NET, you can use nested repeaters for this
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