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Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Address Validator Transformation
  4. Aggregator Transformation
  5. Association Transformation
  6. Bad Record Exception Transformation
  7. Case Converter Transformation
  8. Classifier Transformation
  9. Cleanse transformation
  10. Comparison Transformation
  11. Custom Transformation
  12. Custom Transformation Functions
  13. Consolidation Transformation
  14. Data Masking Transformation
  15. Data Masking Examples
  16. Decision Transformation
  17. Duplicate Record Exception Transformation
  18. Dynamic Lookup Cache
  19. Expression Transformation
  20. External Procedure Transformation
  21. Filter Transformation
  22. HTTP Transformation
  23. Identity Resolution Transformation
  24. Java Transformation
  25. Java Transformation API Reference
  26. Java Expressions
  27. Java Transformation Example
  28. Joiner Transformation
  29. Key Generator Transformation
  30. Labeler Transformation
  31. Lookup Transformation
  32. Lookup Caches
  33. Match Transformation
  34. Match Transformations in Field Analysis
  35. Match Transformations in Identity Analysis
  36. Merge Transformation
  37. Normalizer Transformation
  38. Parser Transformation
  39. Rank Transformation
  40. Router Transformation
  41. Sequence Generator Transformation
  42. Sorter Transformation
  43. Source Qualifier Transformation
  44. SQL Transformation
  45. Using the SQL Transformation in a Mapping
  46. Stored Procedure Transformation
  47. Standardizer Transformation
  48. Transaction Control Transformation
  49. Union Transformation
  50. Unstructured Data Transformation
  51. Update Strategy Transformation
  52. Weighted Average Transformation
  53. XML Transformations

Transformation Guide

Transformation Guide

Query Mode Resilience

Query Mode Resilience

When a database connection error occurs while the Integration Service is executing a SQL query for an input row, the Integration Service attempts to reconnect to the database.
Use the following rules and guidelines for resiliency in query mode:
  • When the Integration Service is executing the first query in a list, and a database connection failure occurs, the Integration Service re-executes the first query in the list for the row. It executes the rest of the queries for that row.
  • If the first query statement is a SELECT statement and a communication failure occurs after some rows are flushed downstream in the pipeline, the session fails.
  • If a connection failure occurs while the Integration Service is executing a query that not the first query in a list, the Integration Service re-connects to the database and skips the rest of the queries for the current row. Query results might be lost for the previous rows.
  • If the Integration Service is not able to reconnect to the database, the session fails if the SQL transformation is using a static connection. If the SQL transformation is using a dynamic connection, the session continues.
  • If the SQL query in the list has an explicit commit or rollback statement, any query results that were created after the commit point will be lost when the session continues.

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