CREATE OR REPLACE FUNCTION check_continuous_days(input_dates IN VARCHAR2) RETURN NUMBER IS date_array DBMS_UTILITY.uncl_array; day_diff NUMBER; continuous_day NUMBER := 1; BEGIN -- 将输入的日期字符串解析为日期数组 date_array := DBMS_UTILITY.comma_to_table(input_dates); -- 按照日期顺序比较相邻两个日期之间的天数差 FOR i IN 2..date_array.count LOOP day_diff := date_array(i) - date_array(i-1); IF day_diff = 1 THEN continuous_day := continuous_day + 1; ELSE continuous_day := 1; END IF; END LOOP; -- 返回连续的天数 RETURN continuous_day; END;

时间: 2024-04-05 11:34:17 浏览: 97
RAR

cordic.rar_cordic square_cordic tanh_sinh with cordic_square roo

这是一个Oracle函数,用于检查输入的日期字符串中连续的天数。具体而言,该函数的输入参数为一个包含多个日期的字符串,每个日期之间用逗号分隔,例如'2022-01-01,2022-01-02,2022-01-03'。函数的返回值为连续的天数,即输入日期字符串中连续的日期的个数。 函数的实现思路如下: 1. 将输入的日期字符串解析为日期数组; 2. 比较相邻两个日期之间的天数差,若为1则表示两个日期是连续的,否则表示两个日期不连续,重新开始计算连续的天数; 3. 返回连续的天数。 例如,如果输入的日期字符串为'2022-01-01,2022-01-02,2022-01-03,2022-01-05,2022-01-06',则函数的返回值为3,表示在输入的日期字符串中有3个连续的日期。
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