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CREATE PROCEDURE createChildLst (IN rootId INT,IN nDepth INT)
  BEGIN
  DECLARE done INT DEFAULT 0;
  DECLARE b INT;
  DECLARE cur1 CURSOR FOR SELECT id from treeNodes where pid=rootId;
  DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = 1;
   
  insert into tmpLst values (null,rootId,nDepth);
  OPEN cur1;  
  FETCH cur1 INTO b;
  WHILE done=0 DO
  CALL createChildLst(b,nDepth+1);
  FETCH cur1 INTO b;
  END WHILE;
   
  CLOSE cur1;
  END;

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call showChildLst(3);
Ëû¶¼±¨Õâ¸ö´í ÎÒset max_sp_recursion_depth=225; ¾Í¿ÉÒÔÁË
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 Recursive limit 0 (as set by the max_sp_recursion_depth variable) was exceeded for routine createChildLst

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begin
declare @temp int;
set @temp=3;
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