How to connect to a database using ADO?
This example illustrates how to connect to a database in Microsoft SQL Server using ActiveX Data Objects (ADO). The following code retrieves data from the Products table in the Northwind sample database that comes with Microsoft SQL Server, and then writes this data to the test log.
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When to use ADO.NET instead of SQL Server?
If you are developing a new application, it is recommended that you consider using ADO.NET and the .NET Framework Data Provider for SQL Server instead of SQL Server Native Client to access all of the new features in recent versions of SQL Server.
How to connect access database to SQL Server?
Open Database Connectivity (ODBC) is a protocol used to connect an Access database to an external data source such as Microsoft SQL Server. You typically use file data sources (also called DSN files) to add a connection string, in which case the FILEDSN keyword is either used in the connection string or stored in the registry, in which case
How to create ADO objects in SQL Server?
You can create ADO objects (connections, record sets, commands, etc.) through OLE and then call their methods in scripts. For more information, see Working with databases. The following code illustrates database table access using analogs to Delphi’s ADO objects:
What type of data is there in SQL Server ADO?
These enhancements allow ADO applications to use newer SQL Server features and consume two data types introduced in SQL Server 2005 (9.x): xml and udt. These enhancements also take advantage of enhancements to the varchar, nvarchar, and varbinary data types.
Can you use SQL Server OLE DB instead of Ado?
However, if you use the SQL Server Native Client OLE DB Provider (SQLNCLI11) instead of SQLOLEDB, you must ensure that you set the DataTypeCompatibility keyword to “80” so that the new data types map correctly to ADO data types. .
How to return native ADO objects in SQL?
Others return “native” ADO objects. The following sample script demonstrates both approaches: the TestSQL_ADO routine accesses the database table through Delphi ADO analog objects; the TestSQL_ADO2 routine demonstrates access through native ADO objects.
How does ADO not create a data recordset?
The adExecuteNoRecords parameter tells ADO not to create a data recordset if no results are returned to the application. This parameter works only with command types defined as a text definition, such as SQL queries or database stored procedures.