OLE DB (Object Linking and Embedding, Database, sometimes written as OLEDB or OLE-DB), an API designed by Microsoft, allows accessing data from a variety of sources in a uniform manner.
What is an OLE DB query?
The Historian OLE DB Provider is a data access mechanism that allows Historian data to be directly queried using Structured Query Language (SQL) statements.
What is the difference between OLE DB and ODBC?
As Microsoft points out: Whereas ODBC was created to access relational databases, OLE DB is designed for relational and non-relational information sources, including mainframe ISAM/VSAM and hierarchical databases; e-mail and file system stores; text, graphical, and geographical data; custom business objects; and more.
What is OLE object in SQL Server?
An OLE object is necessarily also a component (or COM object). So we can define an OLE object as “OLE is a compound document standard developed by Microsoft Corporation. It enables you to create objects with one application and then link or embed them in a second application.
What is OLE DB driver for SQL Server?
The OLE DB Driver for SQL Server is a stand-alone data access application programming interface (API), used for OLE DB. OLE DB Driver for SQL Server is available on Windows and delivers the SQL OLE DB driver in one dynamic-link library (DLL).
Is OLE DB still used?
Microsoft’s release of SQL Server 2012 (internal code: ‘Denali’) is the last to include an OLE DB provider for SQL Server, but support will continue for 7 years.
Is OLE DB secure?
The OLE DB Driver for SQL Server supports encryption without validation through the addition of the SSPROP_INIT_TRUST_SERVER_CERTIFICATE data source initialization property, which is implemented in the DBPROPSET_SQLSERVERDBINIT property set.
Why do we need OLE DB?
Object Linking and Embedding Database (OLE DB) is a group of APIs used to facilitate and abtract access to application data of different file formats, including spreadsheets, structured query language (SQL)-based database management systems (DBMS), indexed-sequential files, and personal databases.
Is ODBC faster than OLE DB?
Microsoft designed OLE DB with performance in mind, but architecturally speaking, an OLE DB call has to traverse more layers of code than does a SQL query issued through raw code to the ODBC API. So don’t be surprised if you find that a pure ODBC approach is slightly faster.
How do I connect to OLE DB?
Add and configure an OLE DB connection manager
- In the Solution Explorer pane, right-click on Connection Managers and select New Connection Manager.
- In the Add SSIS Connection Manager dialog, select OLEDB, then select Add.
- In the Configure OLE DB Connection Manager dialog box, select New.
What is an OLE Automation object?
Automation (formerly OLE Automation) is a feature of the Component Object Model (COM), an industry-standard technology that applications use to expose their objects to development tools, macro languages, and other applications that support Automation.
What is the use of sp_OACreate?
OLE Automation Procedures. sp_OACreate lets you create an instance of an OLE object. The newly created OLE object is automatically destroyed at the end of the Transact-SQL statement batch.
What is OLE Automation in VBA?
Automation (formerly OLE Automation) enables you to use objects from other applications in Visual Basic code. An application that provides its objects for use by other applications also provides information about those objects in a type library.
What is my OLE DB driver?
Right-click on the file, nzoledb. dll, and select Properties. The version number is displayed either in the Product Version field on the Details tab or under the Version tab, depending on your OS.
What is the difference between OLE DB and SQL connection?
“The advantage of using OleDbConnection is flexibility. You can change your database (for instance, move to Oracle)and not have to change your code. The advantage of SqlConnection is performance. The SqlConnection is tuned specifically for accessing Sql Server.
What is OLE DB connection string?
The . NET Framework data provider for OLE DB connects to an OLE DB data sources through the OleDbConnection object. The OLE DB provider connection string is specified using the ConnectionString property of the OleDbConnection object.