first, thank you Magnus for your help :)
the use of cursors and fetch commands works fine for me.
Is it possible to know the result length (rows count) before any retreive ?
Another thing, now I'd like to retreive the results, using FETCH command, into a structure. For example I ask for selecting 2 fields, instead of using PQgetvalue(res, i, j), I'd like to retreive all fields in a C structure.
I saw the FETCH INTO command, I tried to use it with the PQexecParams but I did not succeeded in.
Is it possible ? if yes how ?
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