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1. os : linux,solaris»òÆäËûunixÆðÂëÒªÒ»ÖÖ
2. bash (²»¾«Í¨Ò²ÒªÊì) LINUXÓëUNIX SHELL±à³ÌÖ¸ÄÏ.pdf
3. perl °üÀ¨:
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oracle sql hign performance tuning 2nd editon by guy harrison
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select * from ( select tb1.rollid from (select r.rollid as rollid from zh1_rool r where r.date_p >=to_date('2009-11-26 23:59:59','yyyy-mm-dd hh24:mi:ss') ) tb1
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