The difference between MySQL and Oracle sql language

date

Keyword	the difference	Oracle	MySQL
Date	Storage data format	YYYY-MM-DD HH24:MI:SS	YYYY-MM-DD
	Support range	'4712-1-1' to '9999-12-31' BC	'1000-01-01' to '9999-12-31'
Datetime	Storage data format	no	YYYY-MM-DD HH:MM:SS
	Support range	no	'1000-01-01' to '9999-12-31'
TimeStamp	definition	Timestamp, the time difference from 1970-01-01 00:00:00 to the current time
	Description	If you add and subtract with a value, it will be automatically converted to Date type, and fractional seconds will be automatically removed	YYYY-MM-DD HH:MM:SS

Reference link:
1.
https://www.cnblogs.com/wlzjdm/p/6953398.html 2. https://blog.csdn.net/qq_33573235/article/details/78154928

digital

Number	Oracle	MySQL
Number	A general term for numeric values, which can represent all values ​​in Oracle	type of data	TINYINT	-128->127	0->255u
			SMALLINT	-32768->32767	0->65535u
			MEDIUMINT	-8388608->8388607	0->16777215u
			INT	-2147483648->2147483647	0->4294967295u
			BIGINT	-9223372036854775808->9223372036854775807	0->18446744073709551615u
			FLOAT(size,d)	For decimal numbers with floating decimal points, specify the maximum number of digits to the right of the decimal point in the d parameter.
			DOUBLE(size,d)	For large numbers with floating decimal points, specify the maximum number of digits to the right of the decimal point in the d parameter.
			DECIMAL(size,d)	DOUBLE type stored as a string, allowing a fixed decimal point
		Special Note	xxxx(size) specifies the maximum number of digits in parentheses

Reference link:
1.https://www.cnblogs.com/little-rock/p/7542913.html