Microsoft SQL Query Paged
Executes SQL queries against a Microsoft SQL database and returns results over a series of pages. This Node requires Microsoft SQL Server 2012 and later.
Revision History
3.0.0.6 Initial Release (preview)
3.0.0.7 Official Release
3.0.0.8 Fixed a bug on XmlQuery
3.0.0.14 Added support for custom connection string fragments
Properties
Connection
Type: Connection Input
Server
Type: String
The name or IP address of the server hosting the Microsoft SQL Server instance. Specify a DropPoint if you need to access a SQL instance that is not Internet-exposed.
Database
Type: String
The name of the database to connect to.
UserId
Type: String
The SQL username to be used for the connection. Not required when UseWinAuth is True.
Password
Type: Password
The SQL password to be used for the connection. Not required when UseWinAuth is True.
UseWinAuth
Type: Boolean
When True, indicates that the security context of the caller should be used to authenticate. In Flowgear, UseWinAuth can only be used when the Connection is routed through a DropPoint. In such instances, the security context is the service account used for the DropPoint Windows Service.
Provides an endpoint and credentials for the SQL instance to be queried
ConnectionStringFragments
Type: String
Provide a list of extra connection string fragments that are not part of the standard connection properties. The fragments must be in the format key=value and different fragments should be listed underneath each other.
Query
Type: Multiline Text Input
The SQL query text. This must be a single select statement.
XmlQuery
Type: Boolean Input
When True, indicates that the query provided in the Query property is an XML Query (ie. a query containing the FOR XML statement - refer to http://msdn.microsoft.com/en-us/library/ms178107.aspx for more information on XML queries).
PageSize
Type:Int32 Input
This sets the number of records returned at a time by the node. The Page output will fire each time there are results returned, and the Finished output will fire when there are no more results to return.
ResultXml
Type: Xml Output
The ResultXml Property
RowsAffected
Type:Int32 Output
This return the number of rows returned by SQL. Note that for Xml Query, this is not accurate because the xml string gets split into rows in the result, which is consolidated in the node.
Remarks
Use this Connector to execute large SQL queries against a Microsoft SQL Server instance.
This node make use of the OFFSET - FETCH functionality of Microsoft SQL Server 2012 and higher.
For additional information on querying Microsoft SQL databases, refer to Microsoft SQL Query
SQL Parameters via Custom Properties
Flowgear Custom Properties can be added to this Node to make SQL parameters available in the Query Property. Use of a Custom Property is shown in the linked example workflow (see Examples below).
XML Mode
In XML Query mode, the Connector will automatically build a single XML document from the multiple result-set rows that may be returned.
Other Nodes for SQL databases
If you are updating values in a table based on keys, consider using SQL Table Update instead of crafting update statements.
If you need to integrate with a non-Microsoft SQL database, refer to Integrating with SQL Databases for additional information and connection strings.
Examples
See Sample Workflow for an example.
See Sample Workflow for an example on how to implement pagination in versions of Microsoft SQL Server 2012