mysql 字段类型对应的 数字编号， （转摘）
MYSQL_TYPE_BIT 16
MYSQL_TYPE_BLOB 252
MYSQL_TYPE_DATE 10
MYSQL_TYPE_DATETIME 12
MYSQL_TYPE_DECIMAL 0
MYSQL_TYPE_DOUBLE 5
MYSQL_TYPE_ENUM 247
MYSQL_TYPE_FLOAT 4
MYSQL_TYPE_GEOMETRY 255
MYSQL_TYPE_INT24 9
MYSQL_TYPE_LONG 3
MYSQL_TYPE_LONGLONG 8
MYSQL_TYPE_LONG_BLOB 251
MYSQL_TYPE_MEDIUM_BLOB 250
MYSQL_TYPE_NEWDATE 14
MYSQL_TYPE_NEWDECIMAL 246
MYSQL_TYPE_NULL 6
MYSQL_TYPE_SET 248
MYSQL_TYPE_SHORT 2
MYSQL_TYPE_STRING 254
MYSQL_TYPE_TIME 11
MYSQL_TYPE_TIMESTAMP 7
MYSQL_TYPE_TINY 1
MYSQL_TYPE_TINY_BLOB 249
MYSQL_TYPE_VARCHAR 15
MYSQL_TYPE_VAR_STRING 253
MYSQL_TYPE_YEAR 13

在使用 MySQLdb 时：
The only other method you are very likely to use is when you have to do a multi-row insert:

c.executemany(
"""INSERT INTO breakfast (name, spam, eggs, sausage, price)
VALUES (%s, %s, %s, %s, %s)""",
[
("Spam and Sausage Lover's Plate", 5, 1, 8, 7.95 ),
("Not So Much Spam Plate", 3, 2, 0, 3.95 ),
("Don't Wany ANY SPAM! Plate", 0, 4, 3, 5.95 )
] )
Here we are inserting three rows of five values. Notice that there is a mix of types (strings, ints, floats) though we still only use %s. And also note that we only included format strings for one row. MySQLdb picks those out and duplicates them for each row.


MySQLdb会自动适应类型，实际上可以不必在乎类型了？
但是其他数据库包会么？