Problem Note 52167: A warning occurs on the Mapping tab when you join a table with itself via aliases in SAS® Data Integration Studio
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When you use the SAS Data Integration Studio SQL Join transformation and map three or more source table columns to the same target table column, the warning icon 
appears.
The warning icon disappears after you define an expression that includes all mapped columns.
The generated SQL code is correct and the job runs without error. If you close the job and reopen it, the warning icon reappears on the transformation. The column mappings are lost and they have to be redefined.
To work around this problem, complete the following steps:
- Right-click the job, and then click Properties.
- Click the Options tab.
- Click General* on the panel and select No for the option Generate warnings in code for mappings which have warnings.
- Click OK to save the change.
This procedure ensures that the column mapping issue does not impact code execution. If the option from step 3 is set to Yes, SAS Data Integration Studio generates a Warning in the log, which results in a nonzero return code when the job is run. If the option is set to No, SAS Data Integration Studio changes the message to a Note, and there is no impact on return code.
Note: This workaround does not remove the warning icon on the Join transformation when the job is viewed in SAS Data Integration Studio.
Operating System and Release Information
| Product Family | Product | System | Product Release | SAS Release | ||
| Reported | Fixed* | Reported | Fixed* | |||
| SAS System | SAS Data Integration Studio | Microsoft Windows Server 2003 Datacenter Edition | 4.4 | 9.3 TS1M1 | ||
| Microsoft Windows Server 2003 Enterprise Edition | 4.4 | 9.3 TS1M1 | ||||
| Microsoft Windows Server 2003 Standard Edition | 4.4 | 9.3 TS1M1 | ||||
| Microsoft Windows Server 2003 for x64 | 4.4 | 9.3 TS1M1 | ||||
| Microsoft Windows Server 2008 | 4.4 | 9.3 TS1M1 | ||||
| Microsoft Windows XP Professional | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Enterprise 32 bit | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Home Premium 32 bit | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Home Premium x64 | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Professional 32 bit | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Ultimate 32 bit | 4.4 | 9.3 TS1M1 | ||||
| Windows 7 Ultimate x64 | 4.4 | 9.3 TS1M1 | ||||
| Windows Vista | 4.4 | 9.3 TS1M1 | ||||
| Windows Vista for x64 | 4.4 | 9.3 TS1M1 | ||||
| Type: | Problem Note |
| Priority: | medium |
| Date Modified: | 2014-04-29 12:37:15 |
| Date Created: | 2014-01-23 13:39:51 |