Plsql案例未从案例中正确读取

我需要逐行读取数据，并根据匹配的案例进行更新

我的代码只是读取案例中的

ORBREFTND

并插入

退款

，而不是读取其他案例。我做错了什么

DECLARE
    v_tot_rows   NUMBER (3);

    v_eval       ISG.SWR_CERT_TXN_MSG_TYPE.DESC_TX%TYPE;

    CURSOR pltfm_msg_type_cur
    IS
        SELECT sctmt.PLTFM_MSG_TYPE_CD
          FROM ISG.SWR_CERT_TXN_MSG_TYPE  sctmt
               JOIN ISG.FEATURE_VALUES ft_val
                   ON sctmt.SWR_CERT_FETR_VAL_ID = ft_val.FEATURE_VAL
               JOIN ISG.FEATURE_CATEGORY ft_cat
                   ON ft_val.FEATURE_CAT = ft_cat.FEATURE_CAT
         WHERE     ft_cat.SHORT_DESCRIP = 'PLT'
               AND ft_val.FEATURE_VALUE = 'Orbital';
BEGIN
    FOR msg_code IN pltfm_msg_type_cur
    LOOP
        CASE msg_code.PLTFM_MSG_TYPE_CD
            WHEN 'WAC'
            THEN
                v_eval := 'Authorization and Mark for Capture';
            WHEN 'ORBAUTHCAP'
            THEN
                v_eval := 'Authorization Capture';
            WHEN 'ORBREFTND'
            THEN
                v_eval := 'Refund';
        END CASE;

        UPDATE ISG.SWR_CERT_TXN_MSG_TYPE sctmt
           SET sctmt.DESC_TX = v_eval;
    END LOOP;

    COMMIT;

    v_tot_rows := SQL%ROWCOUNT;
    /* Implicit Attribute %ROWCOUNT is used   to find the number of rows affected     by the update command */
    DBMS_OUTPUT.PUT_LINE ('Total records updated : ' || v_tot_rows);
END;

---

您缺少一个where条件：

    UPDATE ISG.SWR_CERT_TXN_MSG_TYPE sctmt
       SET sctmt.DESC_TX = v_eval
     WHERE sctmt.primarykey = msg_code.primarykey; -- This one is missing. Don't know your primary key..

如果没有

where

，您将始终将最后一个游标对象的值设置为表中的所有对象

ISG.SWR\u CERT\u TXN\u MSG\u TYPE

您还需要从表中选择键：

    CURSOR pltfm_msg_type_cur
    IS
        SELECT sctmt.PLTFM_MSG_TYPE_CD,
               sctmt.PRIMARYKEY -- select key here
          FROM ISG.SWR_CERT_TXN_MSG_TYPE  sctmt
               JOIN ISG.FEATURE_VALUES ft_val
                   ON sctmt.SWR_CERT_FETR_VAL_ID = ft_val.FEATURE_VAL
               JOIN ISG.FEATURE_CATEGORY ft_cat
                   ON ft_val.FEATURE_CAT = ft_cat.FEATURE_CAT
         WHERE     ft_cat.SHORT_DESCRIP = 'PLT'
               AND ft_val.FEATURE_VALUE = 'Orbital';

---

非常感谢卡拉，你救了我一天，不客气。点击“接受答案”就好了；）