获取后PLSQL无效数字错误

Question

抱歉，如果这令人困惑 post 并且样式不正确，但这是我的第一个问题，但在我想获取 c_latlong 后出现错误：

他要取的东西是：
LAT 值：50,9459744669855
LON 值：5,9704909091251

ORA-01722: 数字无效
ORA-06512: 在 "DOMINOS.GETLATLONG"，第 14 行
ORA-06512: 在 "DOMINOS.ZOEKWINKELVOORADRES2"，第 34 行
ORA-06512: 在第 9 行

这是我使用的代码：

create or replace FUNCTION getLatLong(v_postcode varchar2, v_huisnummer varchar2)  
RETURN varchar2  
IS  
  v_lat NVARCHAR2(38) ;  
  v_long NVARCHAR2(38);  
  v_postcode_id varchar2(200);  
  v_all varchar2(200);   
  CURSOR c_latlong IS  
     SELECT LAT, LON  
     FROM POSTCODE  
     WHERE POSTCODE =  v_postcode AND v_huisnummer BETWEEN MINNUMBER AND   MAXNUMBER;  
BEGIN  
  OPEN c_latlong;  
  FETCH c_latlong INTO v_lat, v_long;  
    v_all := v_lat || '-' || v_long;  
   -- print(v_all);  
    RETURN v_all;
  CLOSE c_latlong;
END getLatLong;

create or replace FUNCTION zoekWinkelVoorAdres2(v_postcode varchar2, v_huisnummer varchar2)  
RETURN varchar2  
IS  
  v_array_this apex_application_global.vc_arr2 := apex_util.string_to_table(getLatLong(v_postcode,v_huisnummer), '-');  
  v_temp_postcode varchar2(200);  
  v_temp_huisnummer varchar2(200);  
  v_temp_id varchar2(200);  
  v_temp_winkel apex_application_global.vc_arr2;  
  v_array dbms_sql.varchar2_table;  
  v_max number;  

  v_closest_winkel varchar2(200);  
  v_closest_dis varchar2(200);  

  CURSOR c_all_stores_max IS  
    SELECT count(*)  
    FROM WINKEL;  
  CURSOR c_all_stores IS  
    SELECT ID, POSTCODE, HUISNR  
    FROM WINKEL;  
  CURSOR c_select_dis IS  
  SELECT WINKEL_ID, DISTANCE   
  FROM allwinkeldis ORDER BY DISTANCE DESC;  
BEGIN  
  --DELETE FROM allwinkeldis;  
  OPEN c_all_stores_max;  
    FETCH c_all_stores_max INTO v_max;  
  CLOSE c_all_stores_max;  
  OPEN c_all_stores;  
    FOR i IN 1..v_max  
    LOOP  
      FETCH c_all_stores INTO v_temp_id, v_temp_postcode, v_temp_huisnummer;  
     -- print('-------------------1---------------------' ||v_temp_postcode);  
     print(getLatLong(v_temp_postcode,v_temp_huisnummer));  
      v_temp_winkel :=apex_util.string_to_table(getLatLong(v_temp_postcode,v_temp_huisnummer), '-');  
    --  print(v_temp_id || ' ' || v_temp_winkel(1) || ' ' || v_temp_winkel(2));  
     --   print('-------------------2---------------------');  
      --v_array(i) := v_temp_id ||','||distance(v_array_this(2), v_array_this(3),v_temp_winkel(2),  v_temp_winkel(3));  
      INSERT INTO allwinkeldis(winkel_id, distance) VALUES (v_temp_id, distance(v_array_this(1), v_array_this(2), v_temp_winkel(1),  v_temp_winkel(2)));  
      --print(v_temp_id ||' -------------- '||distance(v_array_this(2), v_array_this(3), v_temp_winkel(2),v_temp_winkel(3)));  
    END LOOP;  
  CLOSE c_all_stores;  
  OPEN c_select_dis;  
      FETCH c_select_dis INTO v_closest_winkel, v_closest_dis;  
  CLOSE c_select_dis;  
  print(v_closest_winkel || '--------------' || v_closest_dis);  

END zoekWinkelVoorAdres2;

Answer 1

我不确定你的 table POSTCODE 中 LAT 和 LON 的数据类型是什么。但是无论您定义什么变量来获取数据，它们都必须匹配这些类型。

例如，假设 LAT 和 LON 是类型 NVARCHAR2，那么我将重写你的声明部分如下：

CREATE OR REPLACE FUNCTION getLatLong(v_postcode varchar2, v_huisnummer varchar2)  
RETURN varchar2  
IS  
  v_postcode_id varchar2(200);  
  v_all varchar2(200);  

  CURSOR c_latlong IS  
     SELECT LAT, LON  
     FROM POSTCODE  
     WHERE POSTCODE =  v_postcode AND v_huisnummer BETWEEN MINNUMBER AND   MAXNUMBER;  

     TYPE temp_nvarchar2 IS TABLE OF NVARCHAR2(38);
     v_lat   temp_nvarchar2;  
     v_long  temp_nvarchar2;  
BEGIN  
     ....

Answer 2

invalid number 错误发生在它需要一个数字并得到其他东西时，比如 varchar。

v_lat 和 v_lon 声明为 NVARCHAR2。这与 POSTCODE 中存储的数据类型相同吗？如果不是，这就是错误的原因。

v_all := v_lat || '-' || v_long; 行也可能有问题。如果 v_lat 或 v_long 是数字，那么您需要将它们转换为字符，如下所示：

v_all := TO_CHAR(v_lat) || '-' || TO_CHAR(v_long);

获取后PLSQL无效数字错误

PLSQL invalid number error after fetch

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