1、在MySQL中新建表stu，插入一些數據
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2、將MySQL表的stu中的數據導入到hive中
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[root@bigdata113 ~]# sqoop import --connect jdbc:mysql://bigdata113:3306/mysqlhdfs --username root --password 000000 --table stu --delete-target-dir --num-mappers 1 --hive-import --fields-terminated-by "\t" --hive-overwrite --hive-table stu_hive
hive (default)> select * from stu_hive;
OK
stu_hive.id stu_hive.name
1 zhangsan
2 isi
3 wangwu
4 yiliu
5 lisa
Time taken: 0.491 seconds, Fetched: 5 row(s)
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3、往MySQL表stu中添加新數據
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4、將MySQL表stu新增的數據追加到hive的stu_hive中
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[root@bigdata113 ~]# sqoop import --connect jdbc:mysql://bigdata113:3306/mysqlhdfs --username root --password 000000 --table stu --num-mappers 1 --fields-terminated-by "\t" --target-dir /user/hive/warehouse/stu_hive --check-column id --incremental append --last-value 5
hive (default)> select * from stu_hive;
OK
stu_hive.id stu_hive.name
1 zhangsan
2 isi
3 wangwu
4 yiliu
5 lisa
6 xiaohei
Time taken: 0.091 seconds, Fetched: 6 row(s)