SUPPORT / SAMPLES & SAS NOTES
Problem Note 59557: Incorrect results occur when you subset a relational database management system table based on a date variable
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When you subset a relational database management system (DBMS) table by a date variable, incorrect results might occur. The problem occurs when the following conditions are true:
- A date variable is compared to a SAS® missing value.
- A date variable is compared to an internal SAS date value using a less-than or a less-than-or-equal-to comparison.
The following example code illustrates a WHERE statement that produces incorrect results:
where (dt1 = . or dt1 <= 20454)
There are two workarounds. One is to use the IS NULL operator rather than a SAS missing value, as shown below:
where (dt1 is null or dt1 <= 20454)
The second workaround is to use a SAS date constant, as shown below:
where (dt1 = . or dt1 <= "01JAN2016"d)
Click the Hot Fix tab in this note to access the hot fix for this issue.
Operating System and Release Information
| Product Family | Product | System | SAS Release | |
| Reported | Fixed* | |||
| SAS System | Base SAS | Tru64 UNIX | 9.1 TS1M3 SP4 | 9.4 TS1M5 |
| Solaris for x64 | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| OpenVMS Alpha | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| Linux on Itanium | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| Linux for x64 | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| Linux | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| HP-UX IPF | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| 64-bit Enabled Solaris | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| 64-bit Enabled HP-UX | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| 64-bit Enabled AIX | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| Windows Vista for x64 | 9.1 TS1M3 SP4 | |||
| Windows Vista | 9.1 TS1M3 SP4 | |||
| Microsoft Windows XP Professional | 9.1 TS1M3 SP4 | |||
| Microsoft Windows Server 2003 Standard Edition | 9.1 TS1M3 SP4 | |||
| Microsoft Windows Server 2003 Enterprise Edition | 9.1 TS1M3 SP4 | |||
| Microsoft Windows Server 2003 Datacenter Edition | 9.1 TS1M3 SP4 | |||
| Microsoft Windows NT Workstation | 9.1 TS1M3 SP4 | |||
| Microsoft Windows 2000 Professional | 9.1 TS1M3 SP4 | |||
| Microsoft Windows 2000 Server | 9.1 TS1M3 SP4 | |||
| Microsoft Windows 2000 Datacenter Server | 9.1 TS1M3 SP4 | |||
| Microsoft Windows 2000 Advanced Server | 9.1 TS1M3 SP4 | |||
| Microsoft® Windows® for x64 | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||
| Microsoft Windows XP 64-bit Edition | 9.1 TS1M3 SP4 | |||
| Microsoft Windows Server 2003 Enterprise 64-bit Edition | 9.1 TS1M3 SP4 | |||
| Microsoft Windows Server 2003 Datacenter 64-bit Edition | 9.1 TS1M3 SP4 | |||
| Microsoft® Windows® for 64-Bit Itanium-based Systems | 9.1 TS1M3 SP4 | |||
| z/OS | 9.1 TS1M3 SP4 | 9.4 TS1M5 | ||