如何从 pymysql.cursor.description 中获取所有数据类型的映射？

Question

对于sql_select_query = 'select * from table'，可以使用pymysql python模块连接到MySql数据库，cursor.description提取值.

def conn():
    myDb=pymysql.connect(server,user,password,database)
    return myDb

dbc = conn() #database connection
dbCursor = dbc.cursor() # cursor

# gathers all column field names and their type
field_names_and_type = [desc[:2] for desc in dbCursor.description]

示例输出：

print(field_names_and_type)

[('ItemId', 1), ('ItemName', 3)]

类型 1 是 nvchar

类型 3 是 int

问题：我如何映射这些？我检查了 pymysql docs 但找不到 cursor.description 输出的映射。

Answer 1

Pymysql 类型代码在 pymysql.constants.FIELD_TYPE

中定义

DECIMAL = 0
TINY = 1
SHORT = 2
LONG = 3
FLOAT = 4
DOUBLE = 5
NULL = 6
TIMESTAMP = 7
LONGLONG = 8
INT24 = 9
DATE = 10
TIME = 11
DATETIME = 12
YEAR = 13
NEWDATE = 14
VARCHAR = 15
BIT = 16
JSON = 245
NEWDECIMAL = 246
ENUM = 247
SET = 248
TINY_BLOB = 249
MEDIUM_BLOB = 250
LONG_BLOB = 251
BLOB = 252
VAR_STRING = 253
STRING = 254
GEOMETRY = 255

CHAR = TINY
INTERVAL = ENUM

如何从 pymysql.cursor.description 中获取所有数据类型的映射？

How to get a map of all data types from pymysql.cursor.description?

python

mysql

mysql-python

pymysql