Feedback

Feedback

Did this article resolve your question/issue?

   

Article

Sample IP code that can access CSV files that are self describing using OpenAccess 8.1 SDK

Printable View

Information

 
TitleSample IP code that can access CSV files that are self describing using OpenAccess 8.1 SDK
URL NameSample-IP-code-that-can-access-CSV-files-that-are-self-describing-using-OpenAccess-8-1-SDK
Article Number000179598
EnvironmentProduct: Openaccess SDK
Version: 8.1
OS: All supported platforms
Database: All supported databases
Application: All supported applicaitons
Question/Problem Description
How to set up Dynamic Schema based IP to expose CSV data files and enable Block Join support using OpenAccess SDK 8.1
Steps to Reproduce
Clarifying Information
Error Message
Defect Number
Enhancement Number
Cause
Resolution
The CSV IP is an example of read-only IP that supports accessing CSV formatted files.  Each file with a csv extension in the configured directory is exposed as a table. The columns and index information is obtained from the header in each file.  Features used by this IP include:
  • Dynamic schema – tables, columns, index, and foreign key meta-data is generated by a schema function based on data stored in each of the CSV files.
  • Multiple join optimizations – IP can be configured to implement joins using Block join or Pushdown join optimization.
  • Cursor based select processing – the IP processes and returns a batch of rows at a time.  In between it maintains state for the statement to allow next set of results to be returned.
  • Custom Properties – path of the data files is provided as DBPATH custom property value.
Download the attached sample and follow the instructions in the document CSVexample.doc.
 
Workaround
Notes
Last Modified Date5/21/2018 3:17 AM
Files 1. CSVexample.zip
Disclaimer The origins of the information on this site may be internal or external to Progress Software Corporation (“Progress”). Progress Software Corporation makes all reasonable efforts to verify this information. However, the information provided is for your information only. Progress Software Corporation makes no explicit or implied claims to the validity of this information.

Any sample code provided on this site is not supported under any Progress support program or service. The sample code is provided on an "AS IS" basis. Progress makes no warranties, express or implied, and disclaims all implied warranties including, without limitation, the implied warranties of merchantability or of fitness for a particular purpose. The entire risk arising out of the use or performance of the sample code is borne by the user. In no event shall Progress, its employees, or anyone else involved in the creation, production, or delivery of the code be liable for any damages whatsoever (including, without limitation, damages for loss of business profits, business interruption, loss of business information, or other pecuniary loss) arising out of the use of or inability to use the sample code, even if Progress has been advised of the possibility of such damages.


Copyright © 2022 Progress Software Corporation and/or its subsidiaries or affiliates.
All Rights Reserved.

Progress, Telerik, Ipswitch, Chef, Kemp, Flowmon and certain product names used herein are trademarks or registered trademarks of Progress Software Corporation and/or one of its subsidiaries or affiliates in the U.S. and/or other countries. See Trademarks for appropriate markings.

Terms of Use Privacy Center Security Center Trademarks License Agreements Code of Conduct Careers Offices
Do Not Sell My Personal Information