sqoop 三库导入导出写法

0 如下所有命令在命令行应该写成一行这里是为了读取方便而故意折行写出来

1 sqoop <---------> mysql

mysql ---> hdfs

sqoop import --connect jdbc:mysql://172.16.252.227:3306/test --username root --password root --table testzm --columns 'id,name'	
             --target-dir /user/root/example/output-dir/testmysql -m 1
             --fields-terminated-by "\t" --null-string "**" --null-non-string "##";





hdfs ---> mysql

sqoop export --connect jdbc:mysql://172.16.252.227:3306/test --username root --password root --table testzmexport	
             --export-dir /user/root/example/output-dir/testmysql/part-m-00000 -m 1
             --fields-terminated-by "\t" ;

2 sqoop <---------> oracle

oracle库为ORCL 表为 USERINFO

oracle ---> hdfs

sqoop import --connect jdbc:oracle:thin:@172.16.252.227:1521:orcl --username test_user --password oracle --table USERINFO 	
             --target-dir /user/root/example/output-dir/sqoop-from-oracl -m 1
             --fields-terminated-by "\t" --null-string "**" --null-non-string "##";


oracle ---> hive

sqoop import --connect jdbc:oracle:thin:@172.16.252.227:1521:orcl --username test_user --password oracle --table USERINFO 	
             --hive-import -m 1;   此时hive不需要创建表名和字段，会默认使用关系型数据库表名，和关系型数据库的字段。
             


hdfs ---> oracl

sqoop export --connect jdbc:oracle:thin:@172.16.252.227:1521:orcl --username test_user --password oracle --table test_user_export	
             --export-dir /user/root/example/output-dir/testmysql/part-m-00000 -m 1
             --fields-terminated-by "\t" ;

3 sqoop <---------> sqlserver

1 sqlserver

sqlserver ---> hdfs

sqoop import --connect 'jdbc:sqlserver://172.16.252.227:database=model;username=sa;password=123456' --query 'select * from userinfo where $CONDITIONS'	
             --target-dir /user/root/example/output-dir/sqoop-from-sqlserver -m 1
             --fields-terminated-by "\t" --null-string "**" --null-non-string "##";

sqoop 三库导入导出写法

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