Access BLOB fields
- Last Updated: March 30, 2020
- 1 minute read
- OpenEdge
- Version 12.2
- Documentation
You use BLOB (Binary Large OBject)
fields to store large amounts of arbitrary binary data. A BLOB is similar
to a MEMPTR, and the Debugger handles BLOBs
in much the same way as MEMPTRs. Specifically,
the Debugger displays the total length of a BLOB (in
parentheses) followed by the first 256 bytes of data in the BLOB (as
a hexadecimal string). If a BLOB contains more
than 256 bytes of data, the Debugger displays an ellipsis indicating
there is more data than shown. For example:
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You cannot edit BLOB values; the Value cell
is read-only.
Due to its small size, the Value cell
shows only a small part of the BLOB data. To see
the full 256 bytes of BLOB data, examine the BLOB in
the Value tab of the Dataview dialog box.