Remember also that the OLE DB Provider for SQL Server was un-deprecated in October 2017. The documentation for the Odbc.DataSource and OleDb.DataSource M functions has more detail on how these connectors can be used and how connection string properties can be set. For example here’s the UI for a new ODBC connection in SSDT: What are the alternatives then? Well you can use the OLE DB and ODBC connectors instead:īoth of these connectors do allow you to set your own connection string properties. While your average Power BI user is unlikely to even notice this, for SSAS Tabular developers it could be a big problem: complete control over the connection string is often necessary in enterprise BI scenarios. It turns out that the restriction on using your own connection string properties in the built-in SQL Server connector is a deliberate design decision on the part of the Power Query team because, behind the scenes, they use different providers in different circumstances to optimise performance, and because allowing arbitrary connection string properties might make maintaining backwards compatibility difficult in the future. …and which are documented in the Sql.Databases() M function here. in local configuration files (such as the default $ORACLE_HOME/network/ may not be immediately obvious, but you cannot set your own connection string properties when connecting to SQL Server using the built-in SQL Server connector from either Power BI or a modern data source in Azure SSAS/SSAS Tabular 2017:Īll you can do is configure the options that are available in the UI, which in the current version of SSDT looks like this:.via environment variables ( $TWO_TASK in Unix-like environments %TWO_TASK% in Microsoft Windows environments).Users of Oracle databases can specify connection strings: This example shows a Postgres connection string for connecting to with SSL and a connection timeout of 180 seconds:ĭRIVER= SERVER=Timeout=180 PWD=ashiknoor The connection string may include attributes such as the name of the driver, server and database, as well as security information such as user name and password. Whilst commonly used for a database connection, the data source could also be a spreadsheet or text file. It is passed in code to an underlying driver or provider in order to initiate the connection. In computing, a connection string is a string that specifies information about a data source and the means of connecting to it.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. Archives
March 2023
Categories |