How to do the equivalent of 'describe' with a SELECT?


The SQL code that I need is for a Pro*C/C++ application. Before my
compiled C program does its main thing, it should check the current
sizes of the variables in the target table.

I would like to be able to change the variables' sizes, for instance,
from:

VARCHAR(20);

to

VARCHAR(30);

without having to recompile all my C programs. Or at least, reduce the
impact of such resize.

TIA,

-Ramon

.

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