【文件属性】：
文件名称：Hive的查询-hive&sqoop;的ppt
文件大小：471KB
文件格式：PPT
更新时间：2021-04-26 10:20:42
hive sqoop
Hive的查询
select
SELECT [ALL | DISTINCT] select_expr, select_expr, ...
FROM table_reference
[WHERE where_condition]
[GROUP BY col_list]
[ CLUSTER BY col_list | [DISTRIBUTE BY col_list] [SORT BY col_list] | [ORDER BY col_list] ]
[LIMIT number]
DISTRIBUTE BY 指定分发器（Partitioner）,多Reducer可用