HIVE 分隔符怎么设置
时间: 2024-12-05 07:13:31 浏览: 33
在HIVE中,分隔符的设置可以通过创建表时使用`ROW FORMAT`子句来完成。HIVE支持多种分隔符,如逗号(,)、制表符(\t)、空格等。以下是一些常见的设置方法:
1. **使用逗号作为字段分隔符**:
```sql
CREATE TABLE my_table (
id INT,
name STRING,
age INT
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
STORED AS TEXTFILE;
```
2. **使用制表符作为字段分隔符**:
```sql
CREATE TABLE my_table (
id INT,
name STRING,
age INT
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '\t'
STORED AS TEXTFILE;
```
3. **使用自定义分隔符**:
```sql
CREATE TABLE my_table (
id INT,
name STRING,
age INT
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '|'
STORED AS TEXTFILE;
```
4. **使用多字符分隔符**:
```sql
CREATE TABLE my_table (
id INT,
name STRING,
age INT
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY '||'
STORED AS TEXTFILE;
```
5. **使用行分隔符**:
```sql
CREATE TABLE my_table (
id INT,
name STRING,
age INT
)
ROW FORMAT DELIMITED
FIELDS TERMINATED BY ','
LINES TERMINATED BY '\n'
STORED AS TEXTFILE;
```
通过这些方法,你可以根据需要设置HIVE表的分隔符,以便正确地读取和写入数据。
阅读全文