Plsql PL/SQL过程错误，出现异常

我有这样一张名为“玩家”的桌子

 Name        Country
---------- ------------
Sachin       India
Ponting      Australia

我编写了一个

PL/SQL

过程，通过将“name”作为参数来执行它。 这是代码-

CREATE OR REPLACE PROCEDURE NEW_TEST (  player IN players.name%type, place IN players.country%type ) IS
countri players.country%type;
BEGIN
SELECT country into countri from players where name = player;
END;

DECLARE
player players.name%type; 
place players.country%type;
CURSOR cu_new0 is
SELECT name, country from players where name=player; 

BEGIN
player:='Sachin' ;
FOR pl_all in cu_new0 

LOOP
NEW_TEST (player, place);
dbms_output.put_line ('The player ' || player || ' play for ' || pl_all.country);
END LOOP;

EXCEPTION
   WHEN NO_DATA_FOUND THEN 
      dbms_output.put_line('No such player!');
   WHEN OTHERS THEN
      dbms_output.put_line('Error!');
END;

---

现在，当我放置player:='Sachin'时，它会给出输出，但当我放置player:='Sachin1'时，它不会显示任何输出，更重要的是，它甚至不会出现“找不到数据”的异常。在这方面你能帮助我吗。Thanx

如果对循环进行编码，Oracle不会在没有返回数据的情况下引发异常（就像在返回多行时不会引发太多行异常一样）。

您的

select

子句之一没有处理异常；您正在使用该代码中的异常

您的原始代码：

BEGIN
SELECT country into countri from players where name = player;
END;

用下面的代码修改--

---

还有一个问题是，您的光标为空。因为 临时代码块：

选择名称
国
来自玩家
其中name=：player

运行代码块：

选择名称
国
来自玩家
其中name='Schin1'

运行代码块returnNULL，光标为haveNULLvalue。
那么for循环代码块就不起作用了

您可以通过以下方式解决此问题：

光标cu_new0为
从玩家中选择姓名、国家/地区

Hi@Warrior92用于编辑，
也许你可以尝试一下

for pl_all in cu_new0 loop
new_test(player
        ,place);     
if pl_all.name = player then
  dbms_output.put_line('The player ' || player || ' play for ' || pl_all.country);
end if;
end loop;

如果确实要使用游标、for循环和异常，可以尝试以下代码：

DECLARE
    -- create table type of players
    TYPE t_players_tab IS TABLE OF players%ROWTYPE;
    -- declare variable / array which will contain the result of cursor's select
    l_players_arr   t_players_tab := NEW t_players_tab();

    CURSOR c_fetch_player IS
    SELECT
        *
    FROM
        players
    WHERE
        name = player;

    -- declare exception which is to be caught within the EXCEPTION block
    EXCEPTION e_player_not_found;
    -- init the exception giving it the sqlcode -20001 (valid numbers for custom exceptions are in range from -20000 to -20999)
    PRAGMA EXCEPTION_INIT(e_player_not_found, -20001);

BEGIN
    -- fetch the cursor result into the array
    OPEN c_fetch_player;
    FETCH c_fetch_player BULK COLLECT INTO l_players_arr;
    CLOSE c_fetch_player;

    -- check if the array contains any results
    IF l_players_arr.COUNT > 0 THEN
        -- iterate through the rows in the array
        FOR idx l_players_arr.FIRST .. l_players_arr.LAST
        LOOP
            dbms_output.put_line ('The player ' || player || ' play for ' || l_players_arr(idx).country);
        END LOOP;
    ELSE -- if the array has no rows, raise application arror with the same sqlcode as defined in EXCEPTION_INIT
        raise_application_error(-20001,'Player ' || player || 'not found');
    END IF;

    EXCEPTION
        -- catch the exception
        WHEN e_player_not_found THEN
            dbms_output.put_line(sqlcode || ': ' || sqlerrm);
        WHEN OTHERS THEN
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_CALL_STACK);
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_ERROR_STACK);          
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_ERROR_BACKTRACE);

END;
/

什么例外？同时提供您的表结构，它已经提供了。请看上面。那么没有其他方法了吗？因为我希望comeTry的异常使用这个示例（）。我想它能帮你。嗨，斯塔科！我浏览了您的，发现它对我没有用处，因为在这里没有提到where循环。没有循环，我也可以得到输出。代码是这样的：声明p_name players.name%type:='Sachin'；P_国家玩家。国家%类型；开始选择姓名，国家进入p_姓名，p_姓名=姓名的玩家的p_国家；DBMS_OUTPUT.PUT_行（'Name:'|| p|u Name）；DBMS|u OUTPUT.PUT_LINE（'Country:'| | p| u Country）；当找不到数据时出现异常，然后dbms_output.put_line（'没有这样的播放器！'）；当其他人然后dbms_输出时。put_行（'Error！'）；终止我尝试了你对代码的修改，但没有成功：\Hi！我在pl/SQLDeveloper中运行了您的查询，它给出了以下错误。1） ORA-06550:line14，column14:PLS-00103在预期以下情况之一时遇到符号“COLLECT”：。成块。符号“.”替换为“收集”以继续；2） ORA-06550：第18行第4列：PLS-00103在预期以下情况时遇到“；”符号：如果。“如果”替换为“继续”；3） ORA-06550:第22行第1列：PLS-00103在预期以下情况之一时遇到符号“.”：（begin case declare exit for goto if loop mod null pragma raise return selectI fetch后忘记了光标名称。我的代码还没有在Oracle中测试过，这是一个很好的例子。@ihan kaya Hi kaya！你的见解真的很有帮助。现在，当我放置“Sachin1”时，它显示了一个异常。在反面，它都将player值作为S默认情况下，achin就像我放置玩家时一样：='Sachin'。它显示了o/p，因为玩家Sachin为印度效力，玩家Sachin为澳大利亚效力。所以它不关心其他玩家在哪里。它只是覆盖了所有赛艇的Sachin谢谢！我为此奋斗了这么久。你让我的日子变得更好：）。很好的方法，耶！！
for pl_all in cu_new0 loop
new_test(player
        ,place);     
if pl_all.name = player then
  dbms_output.put_line('The player ' || player || ' play for ' || pl_all.country);
end if;
end loop;

DECLARE
    -- create table type of players
    TYPE t_players_tab IS TABLE OF players%ROWTYPE;
    -- declare variable / array which will contain the result of cursor's select
    l_players_arr   t_players_tab := NEW t_players_tab();

    CURSOR c_fetch_player IS
    SELECT
        *
    FROM
        players
    WHERE
        name = player;

    -- declare exception which is to be caught within the EXCEPTION block
    EXCEPTION e_player_not_found;
    -- init the exception giving it the sqlcode -20001 (valid numbers for custom exceptions are in range from -20000 to -20999)
    PRAGMA EXCEPTION_INIT(e_player_not_found, -20001);

BEGIN
    -- fetch the cursor result into the array
    OPEN c_fetch_player;
    FETCH c_fetch_player BULK COLLECT INTO l_players_arr;
    CLOSE c_fetch_player;

    -- check if the array contains any results
    IF l_players_arr.COUNT > 0 THEN
        -- iterate through the rows in the array
        FOR idx l_players_arr.FIRST .. l_players_arr.LAST
        LOOP
            dbms_output.put_line ('The player ' || player || ' play for ' || l_players_arr(idx).country);
        END LOOP;
    ELSE -- if the array has no rows, raise application arror with the same sqlcode as defined in EXCEPTION_INIT
        raise_application_error(-20001,'Player ' || player || 'not found');
    END IF;

    EXCEPTION
        -- catch the exception
        WHEN e_player_not_found THEN
            dbms_output.put_line(sqlcode || ': ' || sqlerrm);
        WHEN OTHERS THEN
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_CALL_STACK);
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_ERROR_STACK);          
            DBMS_OUTPUT.PUT_LINE(DBMS_UTILITY.FORMAT_ERROR_BACKTRACE);

END;
/