> -----Original Message-----
> what does the %subject% hold? There's relation_id, format and
> descriptor column. But what does it exactly holds.

From IB6 Langref.pdf


RDB$RELATION_ID SMALLINT Names a table that exists in RDB$RELATIONS
RDB$FORMAT SMALLINT Specifies the format number of the table; a table can
have
any number of different formats, depending on the
number of updates to the table
RDB$DESCRIPTOR BLOB 80 Subtype Format: Lists each column in the table, along
with
its datatype, length, and scale (if applicable)

Rgds

Si Carter
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