1 create or replace function CHECK_IDCARD(p_idcard varchar2) return number is 2 3 v_regstr VARCHAR2 (2000); 4 v_sum NUMBER; 5 v_mod NUMBER; 6 v_checkcode CHAR (11) := '10X98765432'; 7 v_checkbit CHAR (1); 8 v_areacode VARCHAR2 (2000) 9 := '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,'; 10 BEGIN 11 CASE LENGTHB (p_idcard) 12 WHEN 15 13 THEN -- 验证15位身份证 14 IF INSTRB (v_areacode, SUBSTR (p_idcard, 1, 2) || ',') = 0 15 THEN 16 RETURN 0; 17 END IF; 18 19 IF MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 2)) + 1900, 400) = 0 20 OR ( MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 2)) + 1900, 100) <> 21 0 22 AND MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 2)) + 1900, 4) = 0 23 ) 24 THEN -- 闰年 25 v_regstr := 26 '^[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}$'; 27 ELSE 28 v_regstr := 29 '^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$'; 30 END IF; 31 32 IF REGEXP_LIKE (p_idcard, v_regstr) 33 THEN 34 RETURN 1; 35 ELSE 36 RETURN 0; 37 END IF; 38 WHEN 18 39 THEN --验证 18位身份证 40 IF INSTRB (v_areacode, SUBSTR (p_idcard, 1, 2) || ',') = 0 41 THEN 42 RETURN 0; 43 END IF; 44 45 IF MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 4)), 400) = 0 46 OR ( MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 4)), 100) <> 0 47 AND MOD (TO_NUMBER (SUBSTR (p_idcard, 7, 4)), 4) = 0 48 ) 49 THEN -- 闰年 50 v_regstr := 51 '^[1-9][0-9]0{5}19[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]$'; 52 ELSE 53 v_regstr := 54 '^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$'; 55 END IF; 56 57 IF REGEXP_LIKE (p_idcard, v_regstr) 58 THEN 59 v_sum := 60 ( TO_NUMBER (SUBSTRB (p_idcard, 1, 1)) 61 + TO_NUMBER (SUBSTRB (p_idcard, 11, 1)) 62 ) 63 * 7 64 + ( TO_NUMBER (SUBSTRB (p_idcard, 2, 1)) 65 + TO_NUMBER (SUBSTRB (p_idcard, 12, 1)) 66 ) 67 * 9 68 + ( TO_NUMBER (SUBSTRB (p_idcard, 3, 1)) 69 + TO_NUMBER (SUBSTRB (p_idcard, 13, 1)) 70 ) 71 * 10 72 + ( TO_NUMBER (SUBSTRB (p_idcard, 4, 1)) 73 + TO_NUMBER (SUBSTRB (p_idcard, 14, 1)) 74 ) 75 * 5 76 + ( TO_NUMBER (SUBSTRB (p_idcard, 5, 1)) 77 + TO_NUMBER (SUBSTRB (p_idcard, 15, 1)) 78 ) 79 * 8 80 + ( TO_NUMBER (SUBSTRB (p_idcard, 6, 1)) 81 + TO_NUMBER (SUBSTRB (p_idcard, 16, 1)) 82 ) 83 * 4 84 + ( TO_NUMBER (SUBSTRB (p_idcard, 7, 1)) 85 + TO_NUMBER (SUBSTRB (p_idcard, 17, 1)) 86 ) 87 * 2 88 + TO_NUMBER (SUBSTRB (p_idcard, 8, 1)) * 1 89 + TO_NUMBER (SUBSTRB (p_idcard, 9, 1)) * 6 90 + TO_NUMBER (SUBSTRB (p_idcard, 10, 1)) * 3; 91 v_mod := MOD (v_sum, 11); 92 v_checkbit := SUBSTRB (v_checkcode, v_mod + 1, 1); 93 94 IF v_checkbit = SUBSTRB (p_idcard, 18, 1) 95 THEN 96 RETURN 1; 97 ELSE 98 RETURN 0; 99 END IF; 100 ELSE 101 RETURN 0; 102 END IF; 103 ELSE 104 RETURN 0; -- 身份证号码位数不对 105 END CASE; 106 EXCEPTION 107 WHEN OTHERS 108 THEN 109 RETURN 0; 110 end CHECK_IDCARD;