e.ct_speed= -1.49578/1.5025
round(substr(e.ct_speed,1,(instr(e.ct_speed,'/')-1)),2)||'/'||
round(substr(e.ct_speed,(instr(e.ct_speed,'/')+1)),2)
e.ct_speed= -1.5/1.5
以防下次要用又忘記。
- Oct 24 Wed 2007 17:29
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instr
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