Beginning in SAS^® 9, a DATA step with a MODIFY that fails during processing may damage the "master" data set. Typically the failed step produces the following messages:

  ERROR:  Read Access Violation In Task [ DATASTEP )
  Exception occurred at (02A37AAD)
  Task Traceback
  Address   Frame     (DBGHELP API Version 4.0 rev 5)
  02A37AAD  0321FBF8  sase7xrt:\yoeidx.c\yoeiudo 338 +(0x6)
  02A37F3E  0321FC58  sase7xrt:\yoeiupd.c\yoeiupd 230 +(0x1A)
  0364550F  0321FCF8  sase7up:\yoeupd.c\e7oupd 601 +(0x13)
  034A2F9C  0321FE50  sasyoix:\yosio2.c\youpd 535 +(0x1C)
  035C1453  0321FE90  sasdsx:\dsidsio.c\dsimod 1623 +(0x17)

Subsequent attempts to access the data set produce:

  NOTE: File libref.member.DATA is damaged.
  ERROR: The open failed because library member
         libref.member.DATA is damaged.

For this problem to occur, all of the following must be true:

• the step must fail while attempting to update an observation in the data set;
• the data set must have at least 2 indexes, and
• at least one simple (not composite) index must be updated with new values before the failure occurs.

This problem is corrected in SAS 9.1.3 SP4.

Select the Hot Fix tab in this note to access the hot fix for this issue.

Operating System and Release Information

A fix for SAS 9.1.3 (9.1 TS1M3) for this issue is available at:

A fix for SAS 9.1.3 (9.1 TS1M3) with Asian Language Support (DBCS) for this issue is available at :