Table of Contents

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  1. Preface
  2. Working with Transformations
  3. Aggregator Transformation
  4. Custom Transformation
  5. Custom Transformation Functions
  6. Data Masking Transformation
  7. Data Masking Examples
  8. Expression Transformation
  9. External Procedure Transformation
  10. Filter Transformation
  11. HTTP Transformation
  12. Identity Resolution Transformation
  13. Java Transformation
  14. Java Transformation API Reference
  15. Java Expressions
  16. Java Transformation Example
  17. Joiner Transformation
  18. Lookup Transformation
  19. Lookup Caches
  20. Dynamic Lookup Cache
  21. Normalizer Transformation
  22. Rank Transformation
  23. Router Transformation
  24. Sequence Generator Transformation
  25. Sorter Transformation
  26. Source Qualifier Transformation
  27. SQL Transformation
  28. Using the SQL Transformation in a Mapping
  29. Stored Procedure Transformation
  30. Transaction Control Transformation
  31. Union Transformation
  32. Unstructured Data Transformation
  33. Update Strategy Transformation
  34. XML Transformations

Transformation Guide

Transformation Guide

Number of Rows Affected

Number of Rows Affected

You can enable the NumRowsAffected output port to return the number of rows affected by the INSERT, UPDATE, or DELETE query statements in each input row. The Integration Service returns the NumRowsAffected for each statement in the query. NumRowsAffected is disabled by default.
When you enable NumRowsAffected in query mode, and the SQL query does not contain an INSERT, UPDATE, or DELETE statement, NumRowsAffected is zero in each output row.
When you enable NumRowsAffected and the transformation is configured to run in script mode, NumRowsAffected is always NULL.
The following table lists the output rows the SQL transformation generates when you enable NumRowsAffected in query mode:
Query Statement
Output Rows
UPDATE, INSERT, DELETE only
One row for each statement with the NumRowsAffected for the statement.
One or more SELECT statements
Total number of database rows retrieved.
NumRowsAffected is zero in each row.
DDL queries such as CREATE, DROP, TRUNCATE
One row with zero NumRowsAffected.
When the SQL transformation runs in query mode and a query contains multiple statements, the Integration Service returns the NumRowsAffected for each statement. NumRowsAffected contains the sum of the rows affected by each INSERT, UPDATE, and DELETE statement in an input row.
For example, a query contains the following statements:
DELETE from Employees WHERE Employee_ID = ‘101’; SELECT Employee_ID, LastName from Employees WHERE Employee_ID = ‘103’; INSERT into Employees (Employee_ID, LastName, Address)VALUES (‘102’, 'Gein', '38 Beach Rd')
The DELETE statement affects one row. The SELECT statement does not affect any row. The INSERT statement affects one row.
The Integration Service returns one row from the DELETE statement. NumRowsAffected is equal to one. It returns one row from the SELECT statement, NumRowsAffected is zero. It returns one row from the INSERT statement with NumRows Affected equal to one.
The NumRowsAffected port returns zero when all of the following conditions are true:
  • The database is Informix.
  • The transformation is running in query mode.
  • The query contains no parameters.

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