如何从存储过程中获取数据表？

Question

我有一个以下存储过程：

create or replace
PROCEDURE "SP_UTILITIES_LOG"
(
p_utility_name IN varchar2,
p_r_object_id IN varchar2,
p_platform_name IN varchar2,
p_exported_file_path IN varchar2,
p_Is_binary IN number,
p_extraction_status IN varchar2,
p_extraction_error IN varchar2,
p_extraction_datetime IN VARCHAR2,
p_schema_name IN varchar,
p_publication_path IN varchar,
p_schema_tcm_id IN varchar,
p_component_tcm_id IN varchar,
p_component_name IN varchar,
p_loading_status IN varchar,
p_transformed_file_path IN varchar,
p_transformed_status IN varchar,
p_import_status IN varchar,
p_loading_error IN varchar,
p_transform_error IN varchar,
p_import_error IN varchar,
p_loading_datetime IN TIMESTAMP,
p_transform_datetime IN TIMESTAMP,
p_import_datetime IN TIMESTAMP

)
   IS  
   BEGIN

    IF(p_utility_name ='EXTRACTION')
    THEN
    BEGIN
   INSERT INTO utilities_log(R_OBJECT_ID,
PLATFORM_NAME,
EXPORTED_FILE_PATH,
IS_BINARY,
EXTRACTION_STATUS,
EXTRACTION_ERROR,
EXTRACTION_DATETIME
)
   VALUES(p_r_object_id, p_platform_name,p_exported_file_path, p_is_binary, p_extraction_status, p_extraction_error, p_extraction_datetime); 

    END;
    END IF;


    IF(p_utility_name ='LOADING')
    THEN
    BEGIN

    UPDATE UTILITIES_LOG SET schema_name=p_schema_name,
    publication_path= p_publication_path,
    schema_tcm_id= p_schema_tcm_id,
    component_tcm_id= p_component_tcm_id,
    component_name= p_component_name,
    loading_status= p_loading_status,
    loading_error= p_loading_error,
    loading_datetime= current_timestamp
    WHERE
    r_object_id= p_r_object_id;

    END;
    END IF;


    IF(p_utility_name ='PRE-TRANSFORMATION')
    THEN
    BEGIN
    SELECT exported_file_path,component_tcm_id FROM utilities_log
    WHERE
    platform_name= p_platform_name and loading_status=p_loading_status
    and extraction_status=p_extraction_status;


    END;
    END IF;


    IF(p_utility_name ='TRANSFORMATION')
    THEN
    BEGIN
    UPDATE UTILITIES_LOG SET 
    transformed_file_path= p_transformed_file_path,
    transformed_status= p_transformed_status,
    transform_error= p_transform_error,
    transform_datetime= current_timestamp
    WHERE
    exported_file_path= p_exported_file_path;

    END;
    END IF;

    IF(p_utility_name ='RETRIEVE')
    THEN
    BEGIN
    execute immediate 'create global temporary table temp_import as SELECT transformed_file_path,publication_path
    FROM utilities_log
    WHERE
    platform_name= p_platform_name';

    END;
    END IF;

    IF(p_utility_name ='IMPORTER')
    THEN
    BEGIN
    UPDATE UTILITIES_LOG SET 
    import_status=p_import_status,
    import_error=p_import_error,
    import_datetime=current_timestamp
    WHERE
    publication_path= p_publication_path;
    END;
    END IF;


   END;

我收到错误select语句中缺少“Into”子句... 有帮助吗？ 感谢

Answer 1

IF(p_utility_name ='RETRIEVE') THEN
BEGIN
  execute immediate 'create global temporary table temp_import 
  as SELECT transformed_file_path,publication_path     
     INTO temp_import
     FROM utilities_log     
     WHERE platform_name= p_platform_name'
END     
END IF

我认为

Answer 2

执行此操作的正确方法是（将一组查询结果从sp返回到c＃），方法是使用oracle提供的Ref Cursor类型。 您可以查看其实施方式here和here

修改
它应该看起来像这样（我这里没有oracle，但你可以很容易地检查一下）：

create or replace PROCEDURE "SP_UTILITIES_LOG" ( 
p_utility_name IN varchar2, 
p_r_object_id IN varchar2, 
/* your other parameters */
p_refcur out sys_refcursor /* notice the out parameter */
)
AS
BEGIN
/* one sample from your select*/
IF(p_utility_name ='PRE-TRANSFORMATION')
 THEN     
 BEGIN     
      OPERN p_refcur FOR 
      SELECT exported_file_path,component_tcm_id FROM utilities_log     
      WHERE     platform_name= p_platform_name 
     AND        loading_status=p_loading_status      
     AND extraction_status=p_extraction_status;       
 END;     
 END IF; 
END;

Answer 3

错误消息与此相关：

IF(p_utility_name ='PRE-TRANSFORMATION')
THEN
BEGIN
SELECT exported_file_path,component_tcm_id FROM utilities_log
WHERE
platform_name= p_platform_name and loading_status=p_loading_status
and extraction_status=p_extraction_status;
END;
END IF;

在PL / SQL块中，必须将数据选择为某些内容，因此您需要声明一些变量，然后执行：

SELECT exported_file_path,component_tcm_id
INTO <local_exported_file_path_var>, <local_component_tcm_id_var>
FROM utilities_log
...

然后您可以在SP中的其他地方使用这些变量，目前您似乎不需要这些变量，所以不确定为什么要选择它。或者有OUT参数可以选择它们，以便调用者可以访问它们，但你也没有这样做。

不应在Oracle中动态创建临时表，因此整个概念似乎很混乱。如果您尝试将数据表返回给调用者，那么正如@YavgenyP所说，请查看ref游标。不知道你想要做什么。