Actual odbc driver for access8/5/2023 ![]() ' Jet 3.5 mappings or "Microsoft DAO 3.6 Object Library"ĭebug.Print "ODBCJetMapTest is using DAO version " & _ ' Reference "Microsoft DAO 3.51 Object Library" to see ' SQL Server 7.0 table as the data source. ' Outputs a listing of ODBC -> Jet Data Type mappings using a (change the SERVER=(Local) token to SERVER=Server Name ).Ĭonst strConnect = "ODBC Driver=SQL Server SERVER=(Local) " & _Ĭonst strSelectSQL = "select * from tmpAllTypes"Ĭonst strDropTableSQL = "drop table tmpAllTypes" Note: The code requires a Microsoft SQL Server 7.0 database server you need to adjust the connection string if the SQL Server database is on a different machine Jet 3.5 and Jet 4.0 data type mappings, respectively. Run the code using DAO 3.5 and DAO 3.6 (obtained with Office 2000) to verify the The following sample code can be used to verify most of the mappings in the tables above. ![]() Jet 3.5 maps SQL_DECIMAL and SQL_NUMERIC fields to the closest Jet numeric data type depending upon the precision and scale of the ODBC field, which inĬertain cases results in mapping to a non-exact (floating point) numeric Jet data type, such as Double. With the Decimal data type, you can define fields with precision and scale from Numeric data type (called a scaled integer) that holds values from (10^28)-1 through -(10^28). The Jet 4.0 Decimal data type is an exact For example, Jet 4.0 maps SQL_DECIMALĪnd SQL_NUMERIC type fields to a new Jet 4.0 data type called Decimal, providing a closer mapping to the actual ODBC data type. ![]() Microsoft Jet 4.0 provides an improved set of ODBC data type to Jet data type mappings versus the Microsoft Jet 3.5 database engine. If the driver file name is Odbcjt32.dll, then the driver is an ODBC Desktop Driver and is not supported for use with Jet You can verify whether an ODBC driver is an ODBC Desktop Driver by examining the driver file name in the ODBCĪdministrator control panel under the Drivers section. Jet does support using the Microsoft Excel ISAM driver, so theĮxcel ISAM driver can be used instead in this particular case. For example, using the Microsoft Excel ODBC Driver is not supported from Jet. Using any of the ODBC Desktopĭrivers from Jet is not supported. Note: An "ODBC Desktop Driver" is any one of the Microsoft ODBC drivers that uses Microsoft Jet internally to access a data source. Jet -> Jet ISAM Driver -> Jet ISAM data source Jet -> ODBC -> Non-ODBC Desktop Driver -> Any non-Jet data source Microsoft Jet itself allows access to the following data sources: Note: "MSDASQL" above is the Microsoft ODBC Provider for OLE DB, which is an OLE DB Provider that can talk to any ODBC driver (and thus allow ADO to talk to any ODBC ODBC Driver, the Microsoft Jet OLE DB Provider, and the Microsoft Data Access Objects (DAO) to provide access to Microsoft Access-format databases as well as various ODBC andįor example, you can use ActiveX Data Objects (ADO), Remote Data Objects (RDO), or Data Access Objects (DAO) to gain access to Microsoft Jet by using any of the followingĪDO -> OLE DB -> Jet OLE DB Provider -> JetĪDO -> OLE DB -> MSDASQL -> ODBC -> Access ODBC Driver -> Jet The Microsoft Jet database engine is used by the Microsoft Access The Microsoft Data Access Components (MDAC) version 2.1 installs the Microsoft Jet 4.0 database engine. Improved ODBC DataType Mappings with Jet 4.0 Provided by Microsoft® (Last Reviewed: December 5, 2003)
0 Comments
Leave a Reply.AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |