The difference between Mysql tinyint and Sqlserver tinyint, the use of zerofill

When designing database tables, you must pay attention:
In Mysql, tinyint is signed by default, and the value range is -128 to 127. The unsigned attribute is to unsigned the number type. Unsigned tinyint is 0-255;
SQL Server supports bignt, Int, smallint, tinyint, the first three are signed, while tinyint is unsigned, and the value range is 0-255;
therefore, if the table structure is directly migrated in these two databases, Pay attention.

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Use of zerofill:
CREATE TABLE `test` (
  `u_id` INT(11) NOT NULL AUTO_INCREMENT,
  ` u_name` VARCHAR(50) DEFAULT NULL,
  `tinyint1`TINYINT(1),
  `tinyint2`TINYINT(2) ZEROFILL,
  `tinyint3`TINYINT(3) ZEROFILL,
  `tinyint4`TINYINT(4)ZEROFILL,
  PRIMARY KEY (`u_id` )
) ENGINE=INNODB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
INSERT INTO test(u_name,tinyint1,tinyint2,tinyint3,tinyint4)VALUES('zerofill is to fill the default space with 0',6,6,6,6);
SELECT * FROM test;