doc-exports/docs/dws/tool/dws_mt_0216.html

<a name="EN-US_TOPIC_0000001188202612"></a><a name="EN-US_TOPIC_0000001188202612"></a>

<h1 class="topictitle1">CONNECT BY</h1>
<div id="body8662426"><p id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_p44786535453"><strong id="EN-US_TOPIC_0000001188202612__en-us_topic_0237712285_b106594333445">Input-CONNECT BY</strong></p>
<pre class="screen" id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_screen144791653124518">select id from city_branch start with id=roleBranchId connect by prior id=parent_id;
SELECT T.BRANCH_LEVEL, t.ID
                    FROM city_branch c
                   WHERE     (c.branch_level = '1' OR T.BRANCH_LEVEL = '2')
                         AND (T.SIGN = '1' OR T.SIGN = '4' OR T.SIGN = '8')
                         AND T.STATUS = '1'
              START WITH c.ID = I_BRANCH_ID
              CONNECT BY c.ID = PRIOR c.parent_id
                ORDER BY c.branch_level DESC ; </pre>
<p id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_p74801653164513"><strong id="EN-US_TOPIC_0000001188202612__en-us_topic_0237712285_b17661103324412">Output</strong></p>
<pre class="screen" id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_screen1948117537452">WITH RECURSIVE migora_cte AS (
     SELECT
               id
               ,1 AS LEVEL
          FROM
               city_branch
          WHERE
               id = roleBranchId
     UNION
     ALL SELECT
             mig_ora_cte_join_alias.id
             ,mig_ora_cte_tab_alias.LEVEL + 1 AS LEVEL
          FROM
             migora_cte mig_ora_cte_tab_alias INNER JOIN city_branch mig_ora_cte_join_alias
                 ON mig_ora_cte_tab_alias.id = mig_ora_cte_join_alias.parent_id
) SELECT
          id
     FROM
          migora_cte
     ORDER BY
          LEVEL
;
 
WITH RECURSIVE migora_cte AS (
     SELECT
               BRANCH_LEVEL
               ,ID
               ,SIGN
               ,STATUS
               ,parent_id
               ,1 AS LEVEL
          FROM
               city_branch c
          WHERE
               c.ID = I_BRANCH_ID
     UNION
     ALL SELECT
               c.BRANCH_LEVEL
               ,c.ID
               ,c.SIGN
               ,c.STATUS
               ,c.parent_id
               ,mig_ora_cte_tab_alias.LEVEL + 1 AS LEVEL
          FROM
               migora_cte mig_ora_cte_tab_alias INNER JOIN city_branch c
                    ON c.ID = mig_ora_cte_tab_alias.parent_id
) SELECT
          BRANCH_LEVEL
          ,ID
     FROM
          migora_cte c
     WHERE
          (
               c.branch_level = '1'
               OR T.BRANCH_LEVEL = '2'
          )
          AND( T.SIGN = '1' OR T.SIGN = '4' OR T.SIGN = '8' )
          AND T.STATUS = '1'
     ORDER BY
          c.branch_level DESC
;</pre>
<p id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_p1019119325322"><strong id="EN-US_TOPIC_0000001188202612__en-us_topic_0237712285_b02411919195411">Input - CONNECT BY multiple tables</strong></p>
<p id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_p6871026153415">The syntax shows the relationship between each child row and its parent row. It uses the <strong id="EN-US_TOPIC_0000001188202612__b13241195513160">CONNECT BY</strong> <em id="EN-US_TOPIC_0000001188202612__i17310160111719">xxx</em> <strong id="EN-US_TOPIC_0000001188202612__b122403420170">PRIOR</strong> clause to define the relationship between the current row (child row) and the previous row (parent row).</p>
<pre class="screen" id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_screen1522204310516">SELECT DISTINCT a.id menuId,
               F.name menuName,
               a.status menuState,
               a.parent_id menuParentId,
               '-1' menuPrivilege,
               a.serialNo menuSerialNo
  FROM CTP_MENU a, CTP_MENU_NLS F
  START WITH a.serialno in (1, 2, 3)
CONNECT BY a.id = PRIOR a.parent_id
       AND f.locale = Language
       AND a.id = f.id
ORDER BY menuId, menuParentId;
</pre>
<p id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_p13371632173215"><strong id="EN-US_TOPIC_0000001188202612__en-us_topic_0237712285_b1457152305613">Output</strong></p>
<pre class="screen" id="EN-US_TOPIC_0000001188202612__en-us_topic_0238518394_en-us_topic_0237362448_en-us_topic_0202727265_screen1380384210422">WITH RECURSIVE migora_cte AS (
        SELECT pr.service_product_id
             , t.enabled_flag
             , pr.operation_id
             , pr.enabled_flag
             , pr.product_code
             , 1 AS LEVEL
          FROM asms.cppsv_operation_sort t
             , asms.cppsv_product_class pr
         WHERE level_id = 3
           AND pr.operation_id = t.operation_id(+)
      UNION ALL 
         SELECT pr.service_product_id
              , t.enabled_flag
              , pr.operation_id
              , pr.enabled_flag
              , pr.product_code
              , mig_ora_cte_tab_alias.LEVEL + 1 AS LEVEL
           FROM migora_cte mig_ora_cte_tab_alias
              , asms.cppsv_operation_sort t
              , asms.cppsv_product_class pr
          WHERE mig_ora_cte_tab_alias.service_product_id = pr.service_product_father_id
            AND pr.operation_id = t.operation_id(+) ) 
SELECT pr.service_product_id
  FROM migora_cte
 WHERE nvl( UPPER( enabled_flag ) ,'Y' ) = 'Y'
   AND nvl( enabled_flag ,'Y' ) = 'Y'
   AND pr.product_code = rec_product1.service_product_code
 ORDER BY LEVEL;</pre>
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<div class="parentlink"><strong>Parent topic:</strong> <a href="dws_mt_0104.html">Oracle Syntax Migration</a></div>
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