mysql 存储过程循环插入数据

DELIMITER $$

USE `test`$$

DROP PROCEDURE IF EXISTS `test_insert`$$

CREATE DEFINER=`root`@`localhost` PROCEDURE `test_insert`()
BEGIN
SET @i=1;
SET @value='值';
SET @max=10000000;
SET autocommit=0;-- 禁止自动提交
START TRANSACTION;
WHILE (@i<=@max)
DO
INSERT INTO t_part_test VALUES (@i,CONCAT(@value,@i));
IF (@i%10000=0)
THEN COMMIT;
END IF;
SET @i = @i + 1;
END WHILE;
COMMIT;
SET autocommit=1;-- 禁止自动提交
END$$

DELIMITER ;

插入一千万条数据 16分钟

调用存储过程：call test_insert

2. loaddata加载数据

java生成导入文件

File file2 = new File("D:\\localdata2.txt");
try {
if (file2.exists()) {
System.out.println("文件存在");
boolean deleteFlag = file2.delete();
if (deleteFlag) {
System.out.println("文件删除成功");
}
}
file2.createNewFile(); // 文件的创建，注意与文件夹创建的区别
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

/**
* 最简单的文件读写方法是使用类FileWriter
* (它的父类依次是java.io.OutputStreamWriter——>java.io.
* Writer——>java.lang.Object );
*/

// 下面是向文件file2里面写数据
try {
FileWriter fileWriter = new FileWriter(file2);
StringBuilder sbStr = new StringBuilder();
int maxValue = 10000000;
for (int i = 1; i <= maxValue; i++) {
if (i == maxValue) {
sbStr.append(i + "," + "值" + i);
}else{
sbStr.append(i + "," + "值" + i + "/n");
}
}
fileWriter.write(sbStr.toString());
fileWriter.close(); // 关闭数据流

} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}

loaddata 执行耗时10分钟

LOAD DATA LOCAL INFILE 'D:\\localdata.txt' INTO TABLE t_part_test3(id,detail) FIELDS TERMINATED BY ',' LINES TERMINATED BY '\n';