Try putting the path to your libs before the script and put it in the crontab:

ORACLE_HOME=/data/oracle64/product/11.1.0/client_1;LD_LIBRARY_PATH=${O
+RACLE_HOME}/lib:${LD_LIBRARY_PATH};/full/path/to/your/script.pl
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You might need to expand the ${LD_LIBRARY_PATH} before using it