Table of Contents

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  1. Preface
  2. Introduction to Data Validation Option
  3. Repositories
  4. XML Data Source
  5. Tests for XML Data Sources
  6. Connections
  7. Expressions
  8. Table Pairs
  9. Tests for Table Pairs
  10. Single-Table Constraints
  11. Tests for Single-Table Constraints
  12. Examples of Tests from Spreadsheets
  13. SQL Views
  14. Lookup Views
  15. Join Views
  16. Aggregate Views
  17. Business Intelligence and Reporting Tools Reports
  18. Dashboards
  19. DVOCmd Command Line Program
  20. Troubleshooting
  21. Appendix A: Datatype Reference
  22. Appendix B: Reporting Views
  23. Appendix C: Metadata Import Syntax
  24. Appendix D: Jasper Reports
  25. Appendix E: Glossary

Data Validation Option User Guide

Data Validation Option User Guide

Trim Trailing Spaces

Trim Trailing Spaces

By default, string comparison fails if two strings are identical except one string contains extra spaces. For example, one field value in a test is 'Data Validation' and the other field value is 'Data Validation ' (with three blank spaces after the last character). If you do not trim trailing spaces, the test produces a bad record. If you trim trailing spaces, the comparison passes because the extra spaces are ignored.
You might want to trim trailing spaces when the CHAR datatype, which pads a value entered with spaces to the right out to the length of the field, is used. A field of CHAR(20) compared to CHAR(30) fails, even if both fields have the same value, unless you trim the trailing spaces.
Enable the
Trim Trailing Spaces
option if there are spaces after the value entered in a field that should be ignored in the comparison. This option is disabled by default.