Common writing examples for MySQL and Oracle batch insert SQL

public class User{
    //Nameprivate String name;
    //Ageprivate Integer age;
    //Genderprivate Integer sex
}

INSERT INTO USER 
    (NAME,AGE,SEX)
VALUES
('val1_1', 'val1_2', 'val1_3'),
('val2_1', 'val2_2', 'val2_3'),
('val3_1', 'val3_2', 'val3_3');

//Multiple single inserts INSERT INTO USER (NAME,AGE,SEX) VALUES ('val1_1', 'val1_2', 'val1_3');
INSERT INTO USER (NAME,AGE,SEX) VALUES ('val2_1', 'val2_2', 'val2_3');
INSERT INTO USER (NAME,AGE,SEX) VALUES ('val3_1', 'val3_2', 'val3_3');

//Batch insert INSERT ALL
   INTO USER (NAME,AGE,SEX) VALUES ('val1_1', 'val1_2', 'val1_3')
   INTO USER (NAME,AGE,SEX) VALUES ('val2_1', 'val2_2', 'val2_3')
   INTO USER (NAME,AGE,SEX) VALUES ('val3_1', 'val3_2', 'val3_3')
SELECT 1 FROM DUAL;

INSERT INTO USER (NAME,AGE,SEX)
    select ('val1_1', 'val1_2', 'val1_3') from dual union all
    select ('val2_1', 'val2_2', 'val2_3') from dual union all
    select ('val3_1', 'val3_2', 'val3_3') from dual

<!--MySQL batch insert-->
<insert id="batchInsertUser" databaseId="mysql">
   INSERT INTO USER 
            (NAME,AGE,SEX)
   VALUES
    <foreach collection="userList" index="index" item="user" separator=",">
            (#{user.name},#{user.age},#{user.sex})
  </foreach>
</insert>

<!--Oracle batch insert-->
<insert id="batchInsertUser" databaseId="oracle">
  BEGIN
  <foreach collection="userList" index="index" item="user" separator=";">
   INSERT INTO USER 
            (NAME,AGE,SEX)
   VALUES
            (#{user.name},#{user.age},#{user.sex})
  </foreach>
  ;END;
</insert>

<!--General batch insert-->
<insert id="batchInsertUser" databaseId="mysql">
   INSERT INTO USER 
            (NAME,AGE,SEX)
  <foreach collection="userList" index="index" item="user" separator="union all">
     SELECT
            (#{user.name},#{user.age},#{user.sex})
     FROM DUAL
  </foreach>
</insert>