I had ran the program below.
 
" libname adb meta library='S_A_DB' metaout=data; "
 
However the message has been shown below.
 
" ERROR : Name for reference to library has not been assigned. "
 
 
Please teach me the reason why this happened and the answer to solve.
 
And what effect does the program below run?
libname --- meta library='~' metaout=data;
 
 
I'd appreciate for your answers.