操作：
1、从db2 中导出数据到txt中
2、修改文件中的分隔符为“：”
3、在hive中新建表（建表时需要制定分隔符）
4、导入数据
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1、从db2 中导出数据到txt中
db2 -x "select col1,col2,col3 from tbl_name where xxx with ur">filename.txt
2、修改文件中的分隔符为“：”
cat filename.txt | awk '{print $1":"$2":"$3}'>filename1.txt
3、在hive中新建表（建表时需要制定分隔符）
ROW FORMAT DELIMITED 分隔符设置开始语句
FIELDS TERMINATED BY：设置字段与字段之间的分隔符
COLLECTION ITEMS TERMINATED BY：设置一个复杂类型（array,struct)字段的各个item之间的分隔符
MAP
KEYS TERMINATED BY：设置一个复杂类型(Map)字段的key value之间的分隔符
Hive>
create table t(id struct<id1:int,id2:int,id3:int>,name array<string>,xx map<int,string>)
> row format delimited
> fields terminated by ' '
> collection items terminated by ','
> map keys terminated by ':'
> lines terminated by '
';
OK
Time taken: 0.287 seconds
ROW FORMAT DELIMITED 必须在其它分隔设置之前，也就是分隔符设置语句的最前
LINES TERMINATED BY必须在其它分隔设置之后，也就是分隔符设置语句的最后，否则会报错
hive> create table t (id struct<id1:int,id2:int,id3:int>,name array<string>,xx map<int,string>)
> row format delimited
> fields terminated by ' '
> lines terminated by '
'
> collection items terminated by ','
> map keys terminated by ':';
FAILED: ParseException line 5:0 missing EOF at 'collection' near ''
''
4、导入数据至hive中
load data local inpath 'filename1.txt' into table tbl_cdhd_usr_id_xxt_tmp