Hive commonly used data types
Others
2021-01-24 16:18:56
views: null
table of Contents
1. Digital
2. Date and time
3. String class
4. Misc category
5. Composite class
1. Digital
| Types of |
length |
Remarks |
| TINYINT |
1 byte |
Signed integer |
| SMALLINT |
2 bytes |
Signed integer |
| INT |
4 bytes |
Signed integer |
| BIGINT |
8 bytes |
Signed integer |
| FLOAT |
4 bytes |
Signed single precision floating point |
| DOUBLE |
8 bytes |
Signed double-precision floating-point number |
| DECIMAL |
-- |
Exact numeric string with decimals |
2. Date and time
| Types of |
length |
Remarks |
| TIMESTAMP |
-- |
Timestamp, content format: yyyy-mm-dd hh:mm:ss[.f...] |
| DATE |
-- |
Date, content format: YYYYMMDD |
| INTERVAL |
-- |
-- |
3. String class
| Types of |
length |
Remarks |
| STRING |
-- |
String |
| VARCHAR |
Character range 1-65535 |
String of variable length |
| CHAR |
Maximum number of characters: 255 |
Fixed-length string |
4. Misc category
| Types of |
length |
Remarks |
| BOOLEAN |
-- |
Boolean type TRUE/FALSE |
| BINARY |
-- |
Byte sequence |
5. Composite class
| Types of |
length |
Remarks |
| ARRAY |
-- |
An array containing elements of the same type, the index starts from 0 ARRAY<data_type> |
| MAP |
-- |
字典 MAP<primitive_type, data_type> |
| STRUCT |
-- |
Structure STRUCT<col_name: data_type [COMMENT col_comment], ...> |
| UNIONTYPE |
-- |
Union UNIONTYPE<data_type, data_type, ...> |
Origin blog.csdn.net/qq_35995514/article/details/108553694