07 2022 档案
摘要：交集 WITH V_List1 AS ( SELECT 1 AS NUM FROM DUAL UNION ALL SELECT 3 AS NUM FROM DUAL UNION ALL SELECT 5 AS NUM FROM DUAL UNION ALL SELECT 7 AS NUM FROM
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摘要：定义： DBMS_OUTPUT.PUT_LINE (item IN VARCHAR2); 使用： -- 必须有，不然无法显示会报错 SET SERVEROUTPUT ON DECLARE NUM INT := 0; num_max INT := 3; BEGIN dbms_output.put_li
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