创建hive表时（分区表、内外表都适用），遇到双符号的切分符怎么办，比如：||

忘是亡心i 2023-02-22 05:24 26阅读 0赞

### 两个字段的例子  ###

# 1. 建表
    create  EXTERNAL table b(
    id double,
    name string)
    PARTITIONED BY (ds STRING) 
    row format serde 'org.apache.hadoop.hive.serde2.RegexSerDe'
    with serdeproperties(
    'input.regex'='(.*)\\|\\|(.*)',
    'output.format.string'='%1$s %2$s %3$s')
    stored as textfile;
    
    # 2. 加载数据
    hive> load data local inpath '/root/a' into table b partition (ds='2020-02-02');
    
    # 3. 查看数据
    hive> select * from b;
    OK
    01	huangbo
    02	xuzheng
    03	wangbaoqiang
    Time taken: 0.098 seconds, Fetched: 3 row(s)

### 很多字段的例子 （16个字段，需要切15次） ###

### 注意：一行数据中有16个分隔符就要在‘input.regex’ = ‘切15次’  ###

### 切分符是其他的话只需把||换成其他即可   ###

-- 数据 111||0.0||0.0||0.0||0.0||0.0||0.0||1||0.0||1||1||1||1||1||1||1
    
    
    CREATE EXTERNAL TABLE  IF NOT EXISTS  ecar_match_gps (
    terminalid BIGINT,
    acceleration DOUBLE, 
    direct DOUBLE, 
    distance DOUBLE, 
    height DOUBLE, 
    lat DOUBLE,
    lon DOUBLE,
    satellitenum INTEGER,
    speed DOUBLE, 
    systime BIGINT, 
    h3_5 BIGINT,
    h3_7 BIGINT,
    h3_10 BIGINT,
    h3_13 BIGINT,
    utc BIGINT,
    roadid BIGINT
    )  
    PARTITIONED BY (ds STRING) 
    ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.RegexSerDe'
    WITH  SERDEPROPERTIES(
    'input.regex'='(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)'
    )
    stored as textfile;
    
    load data local inpath '/root/4' into table bbbc partition (ds='2020-02-02');
    
    
    
    CREATE EXTERNAL TABLE  IF NOT EXISTS  ecar_reserve_gps (
    terminalid BIGINT,
    acceleration DOUBLE, 
    direct DOUBLE, 
    distance DOUBLE, 
    height DOUBLE, 
    lat DOUBLE,
    lon DOUBLE,
    satellitenum INTEGER,
    speed DOUBLE, 
    systime BIGINT, 
    h3_5 BIGINT,
    h3_7 BIGINT,
    h3_10 BIGINT,
    h3_13 BIGINT,
    utc BIGINT
    )  
    PARTITIONED BY (ds STRING) 
    ROW FORMAT SERDE 'org.apache.hadoop.hive.serde2.RegexSerDe'
    WITH  SERDEPROPERTIES(
    'input.regex'='(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)\\|\\|(.*)'
    );