标签:字段 store collate com 存储 编号 arch ble mod
1.应用层建内部表,数仓表用外部表
2.存储格式一般选orcfile,除非需要直接load数据的表则选textfile
3.建表时要指定库名
hive的建表样例
create table if not exists 表名(
字段名 字段类型 comment‘字段描述‘
。。。。。。。。。。。。。。。。
,import_time string comment‘数据入库时间‘
)
row format delimited
fields terminated by ‘\t‘
collection items terminated by ‘,‘
map keys terminated by ‘:‘
stored as orcfile;
mysql的建表样例
create table if not exists 表名(
字段名 字段类型 comment‘字段描述‘
id varchar(60) character set utf8 collate utf8_bin default ‘‘ comment ‘编号‘
,key idx_model(model)
,ket idx_model_level_2(model_level_2)
)engine=myisam default charset=utf8 comment‘表名‘
标签:字段 store collate com 存储 编号 arch ble mod
原文地址:https://www.cnblogs.com/lidapengwww/p/12036462.html