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- set serveroutput on
- declare
- v_num number := &sv_num;
- v_result number;
- begin
- v_result := power(v_num,2);
- dbms_output.put_line('The value of v_result is:'||v_result);
- end;
- /
set serveroutput on :启用dbms_output.p ut_line语句
power(x,y) :计算x^y次方，返回。
