1 Testing & Debugging in Informatica PowerCenter

2 Agenda What do we test in Informatica? Preparing to test Different types of problems Solutions to problems Using the debugger Where to look for problem causes Common problems and their solutions

3 Testing – What needs to be tested? Format Examples:  File length  Number formats  Representation of NULL Logic Examples:  Calculation results  Results of logical conditions

4 Testing – Preparing for battle Prepare test plan Grant appropriate file permissions Prepare test data

5 Types of problems Format related “What is this junk data?!!!” ”My file looks ugly!!” Logic related “Why am I getting a different output? I am SURE my logic is correct”  Others  Workflow fails  No session log written

6 Fighting it out… Format related problems Solution:  File length – Check port length/precision  Number formats – Check port length/precision  Representation of NULL – check session properties

7 Fighting it out… Logic related problems Solution: Debugger!!!!!

8 Features in the Debugger Setting break points Evaluating expressions Discarding target data

9 Using the Debugger

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38 Fighting it out… Other problems

39 Where to look? 1. Session property in Workflow monitor 2. Session log 3. Session property in Workflow designer 4. Debugger

40 Accessing the session property in Workflow monitor

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44 Accessing the session Log file in Workflow monitor

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48 Changing the logging to ‘verbose’ mode

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55 Changing ‘NULL’ representation

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59 Fighting it out… Common problems and causes SNoProblemSolution 1Workflow fails at the beginning itselfCheck monitor session properties if file access problems exist 2Workflow fails at the beginning itself, no file access problems Check SQL syntax in source qualifiers 3Workflow fails for some reasonCheck session log. If necessary, run session in ‘verbose’ mode 4Data is being truncated for some reasonCheck port length 5Logical equality/inequality operators do not seem to work Trimming is needed/Check data type 6Logical conditions are getting executed wrongly Check if NULL checks have been performed 7Numbers are being read from flat file. Corresponding calculation results are wrong Check length/precision of ports 8During debugging, all ports get null value Some fatal error has occurred. Eg: division by zero, invalid date

60 Thank You!