Cursor teradata中的For循环游标

在我的Teradata存储过程中，我希望有一个针对动态sql的for循环游标

下面是代码片段

SET get_exclude_condition = '';

SET colum_id = 'SELECT MIN (parent_criteria_id) ,MAX (parent_criteria_id)  FROM  arc_mdm_tbls.intnl_mtch_criteria WHERE act_ind = 1 AND criteria_typ = ''Exclude'' AND mtch_technique_id ='||mtch_technique_id||';' ;
PREPARE input_stmt FROM colum_id;
OPEN flex_cursor;
FETCH flex_cursor INTO parent_criteria_id_min , parent_criteria_id_max ;
CLOSE flex_cursor;

SET get_exclude_condition = '';

WHILE (parent_criteria_id_min <=  parent_criteria_id_max)
DO

    SET get_exclude_condition = get_exclude_condition || '(  ';

    SET for_loop_stmt = 'SELECT criteria  FROM arc_mdm_tbls.intnl_mtch_criteria WHERE act_ind = 1 AND mtch_technique_id ='||mtch_technique_id||' AND criteria_typ= ''Exclude'' AND parent_criteria_id ='||parent_criteria_id_min||';';

    FOR for_loop_rule AS c_cursor_rule CURSOR FOR 
        for_loop_stmt
    DO

我的意思是，我可以先框定动态sql，然后在其上有一个for循环游标，还是只需要有一个静态sql查询就可以使用游标声明

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请澄清

虽然您还没有发布存储过程试图完成的所有内容，但您所要求的似乎可以使用基于集合的逻辑完成，而不是通过游标循环。如果需要参数化“mtch_technology_id”，可以使用Teradata宏，这将允许您维护基于集合的方法

下面是创建宏的SQL语句，该宏根据我对存储过程片段的解释返回结果集：

REPLACE MACRO {MyDB}.Intnl_Mtch_Criteria(mtch_technique_id INTEGER) AS
(
SELECT criteria  
  FROM arc_mdm_tbls.intnl_mtch_criteria 
  WHERE act_ind = 1 
    AND (much_technique_id, criteria_typ) IN
        (SELECT MIN((parent_criteria_id), MAX (parent_criteria_id)  
           FROM  arc_mdm_tbls.intnl_mtch_criteria 
          WHERE act_ind = 1 
            AND criteria_typ = 'Exclude' 
            AND mtch_technique_id = :mtch_technique_id;
);

REPLACE MACRO {MyDB}.Intnl_Mtch_Criteria(mtch_technique_id INTEGER) AS
(
SELECT criteria  
  FROM arc_mdm_tbls.intnl_mtch_criteria 
  WHERE act_ind = 1 
    AND (much_technique_id, criteria_typ) IN
        (SELECT MIN((parent_criteria_id), MAX (parent_criteria_id)  
           FROM  arc_mdm_tbls.intnl_mtch_criteria 
          WHERE act_ind = 1 
            AND criteria_typ = 'Exclude' 
            AND mtch_technique_id = :mtch_technique_id;
);