Compare Java data types to MySql data types

This article talks about Javadata type and MySql data type Comparison table. Shared with everyone for your reference, the details are as follows:

##Display length Database TypeJAVA TypeJDBC Type Index (int)VARCHARL+NVARCHARjava.lang.String12##CHARBLOB##43TINYINT UNSIGNEDjava.lang.Integer-65SMALLINT UNSIGNEDjava.lang.Integer58120##4+8DOUBLE22##DATETIME##TIMESTAMP19TIMESTAMP

#Type name
N	CHAR	##java.lang.String	1
L+N	BLOB	java.lang.byte[]	-4	##TEXT
65535	VARCHAR	java.lang.String	-1	INTEGER
4	INTEGER UNSIGNED	java.lang.Long		TINYINT
				SMALLINT
				MEDIUMINT
##MEDIUMINT UNSIGNED	java.lang.Integer	4		BIT
BIT	java.lang.Boolean	-7		BIGINT
BIGINT UNSIGNED	java.math.BigInteger	-5		FLOAT
FLOAT	java.lang.Float	7
DOUBLE	##java.lang. Double	8	DECIMAL	11
DECIMAL	java.math.BigDecimal	3	BOOLEAN	1
Same as TINYINT			ID	11
PK (INTEGER UNSIGNED)	java.lang.Long	4	DATE	10
DATE	java.sql.Date	91	TIME	8
TIME	java.sql.Time	92	DATETIME	19
##java.sql.Timestamp	93
java.sql.Timestamp	##93	YEAR	4	YEAR
java.sql.Date	91			##For bolb, it is generally used for database storage of pictures. The principle is to convert the picture into binary and then perform a storage method, which corresponds to byte[] array in java. For the boolen type, in mysql database , I personally think it is better to use the int type instead. It is not very convenient for bit operations, especially in projects with web page development, it means 0 /1, which corresponds to the Java type Integer is better.

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