数据仓库服务 GAUSSDB(DWS)-MOVE:示例

时间:2023-11-10 17:34:10

示例

开始一个事务:

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START TRANSACTION;

定义一个名为cursor1的游标:

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CURSOR cursor1 FOR SELECT * FROM tpcds.reason;

忽略游标cursor1的前3行:

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MOVE FORWARD 3 FROM cursor1;

抓取游标cursor1的前4行:

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FETCH 4 FROM cursor1;
 r_reason_sk |   r_reason_id    |                                            r_reason_desc                                             
-------------+------------------+------------------------------------------------------------------------------------------------------
           4 | AAAAAAAAEAAAAAAA | Not the product that was ordred                                                                     
           5 | AAAAAAAAFAAAAAAA | Parts missing                                                                                       
           6 | AAAAAAAAGAAAAAAA | Does not work with a product that I have                                                            
           7 | AAAAAAAAHAAAAAAA | Gift exchange                                                                                       
(4 rows)

关闭游标:

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CLOSE cursor1;

结束一个事务:

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END;
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