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From "Dmitry Tolpeko (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-11254) Process result sets returned by a stored procedure
Date Tue, 14 Jul 2015 15:32:04 GMT

    [ https://issues.apache.org/jira/browse/HIVE-11254?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14626485#comment-14626485
] 

Dmitry Tolpeko commented on HIVE-11254:
---------------------------------------

An example of a stored procedure returning a result set (DB2, Teradata syntax):

{code}
CREATE PROCEDURE spResultSet1 
  DYNAMIC RESULT SETS 1
BEGIN
  DECLARE cur1 CURSOR WITH RETURN FOR
    SELECT 'A', 'A1' FROM src LIMIT 3;
  OPEN cur1;
END; 
{code}

Then this procedure can be called and results fetched as follows:

{code}
DECLARE v1 VARCHAR(10);
DECLARE v2 VARCHAR(10);

CALL spResultSet1;

ALLOCATE c1 CURSOR FOR PROCEDURE spResultSet1;      -- Teradata syntax
FETCH c1 INTO v1, v2;
WHILE (SQLCODE = 0)
DO
  -- ...
  FETCH c1 INTO v1, v2;
END WHILE;
CLOSE c1;
{code}

> Process result sets returned by a stored procedure
> --------------------------------------------------
>
>                 Key: HIVE-11254
>                 URL: https://issues.apache.org/jira/browse/HIVE-11254
>             Project: Hive
>          Issue Type: Improvement
>          Components: hpl/sql
>            Reporter: Dmitry Tolpeko
>            Assignee: Dmitry Tolpeko
>
> Stored procedure can return one or more result sets. A caller should be able to process
them.
>  



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