Hi, * apr_dbd_pvquery is only for string values. > > You must use apr_dbd_pvbquery (with a "b") for binary values. > > see: > http://apr.apache.org/docs/apr-util/1.3/group___a_p_r___util___d_b_d.html
I tried both versions, but without success. But that was because I did not pass pointers to float obviously. * You don't pass a float value directly - %f takes a *pointer* to a float. > O yes, thank you! That did the trick. I definitely missed this in the documentation. Is it there? * It is best not to call ap_dbd_prepare and ap_dbd_acquire directly. > > You should populate your own function pointers at config time using > APR_RETRIEVE_OPTIONAL_FN. > > If APR_RETRIEVE_OPTIONAL_FN gives you NULL pointers, that means that > mod_dbd is not loaded. I have no problems with calling these function directly. If mod_dbd is not loaded, Apache simply does not start. But it does impose a restriction on the order that the modules are loaded. Thank alot! Andrej