Oracle验证身份证号

CREATE OR REPLACE FUNCTION fn_checkIdCardNo (p_idcard IN VARCHAR2) RETURN INT
IS
v_regstr VARCHAR2 (2000);
v_sum NUMBER;
v_mod NUMBER;
v_checkcode CHAR (11) := ‘10X98765432’;
v_checkbit CHAR (1);
v_areacode VARCHAR2 (2000) := ‘11,12,13,14,15,21,22,23,31,32,33,34,35,36,37,41,42,43,44,45,46,50,51,52,53,54,61,62,63,64,65,71,81,82,91,’;
BEGIN
CASE LENGTHB (p_idcard)
WHEN 15
THEN —15位
IF INSTRB (v_areacode, SUBSTR (p_idcard, 1, 2) || ‘,’) = 0 THEN
RETURN 0;
END IF;

      IF MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 2)) + 1900, 400) = 0<br />             OR<br />             (<br />                 MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 2)) + 1900, 100) <> 0<br />                 AND<br />                 MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 2)) + 1900, 4) = 0<br />             )<br />          THEN                                                          -- 闰年<br />             v_regstr :=<br />                '^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$';<br />          ELSE<br />             v_regstr :=<br />                '^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$';<br />          END IF;
      IF REGEXP_LIKE (p_idcard, v_regstr) THEN<br />             RETURN 1;<br />          ELSE<br />             RETURN 0;<br />          END IF;<br />       WHEN 18<br />       THEN                                                             -- 18位<br />          IF INSTRB (v_areacode, SUBSTRB (p_idcard, 1, 2) || ',') = 0 THEN<br />             RETURN 0;<br />          END IF;
      IF MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 4)), 400) = 0<br />             OR<br />             (<br />                 MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 4)), 100) <> 0<br />                 AND<br />                 MOD (TO_NUMBER (SUBSTRB (p_idcard, 7, 4)), 4) = 0<br />             )<br />          THEN                                                          -- 闰年<br />             v_regstr :=<br />                '^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$';<br />          ELSE<br />             v_regstr :=<br />                '^[1-9][0-9]{5}(19|20)[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$';<br />          END IF;
      IF REGEXP_LIKE (p_idcard, v_regstr) THEN<br />             v_sum :=<br />                    (  TO_NUMBER (SUBSTRB (p_idcard, 1, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 11, 1))<br />                    )<br />                  * 7<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 2, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 12, 1))<br />                    )<br />                  * 9<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 3, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 13, 1))<br />                    )<br />                  * 10<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 4, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 14, 1))<br />                    )<br />                  * 5<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 5, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 15, 1))<br />                    )<br />                  * 8<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 6, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 16, 1))<br />                    )<br />                  * 4<br />                +   (  TO_NUMBER (SUBSTRB (p_idcard, 7, 1))<br />                     + TO_NUMBER (SUBSTRB (p_idcard, 17, 1))<br />                    )<br />                  * 2<br />                + TO_NUMBER (SUBSTRB (p_idcard, 8, 1)) * 1<br />                + TO_NUMBER (SUBSTRB (p_idcard, 9, 1)) * 6<br />                + TO_NUMBER (SUBSTRB (p_idcard, 10, 1)) * 3;<br />             v_mod := MOD (v_sum, 11);<br />             v_checkbit := SUBSTRB (v_checkcode, v_mod + 1, 1);
         IF v_checkbit = upper(substrb(p_idcard,18,1)) THEN<br />                RETURN 1;<br />             ELSE<br />                RETURN 0;<br />             END IF;<br />          ELSE<br />             RETURN 0;<br />          END IF;<br />       ELSE<br />          RETURN 0;                                      -- 身份证号码位数不对<br />    END CASE;<br /> EXCEPTION<br />    WHEN OTHERS<br />    THEN<br />       RETURN 0;<br /> END fn_checkIdCardNo;