//DELIMITER
DROP PROCEDURE if EXISTS createManyTable;
create PROCEDURE createManyTable()
BEGIN
DECLARE i int;
DECLARE fileName VARCHAR(30);
set i=1;while i<251
DO
SET fileName=CONCAT('f_log_',i,'.txt');SET @STMT :=CONCAT("select `xx`,`xx`,`xx`,`xx`,.... into outfile 'temp/",fileName,
"' lines terminated by '\r\n' from `f_log` WHERE id>= ",40000*(i-1)," AND id< ",40000*i);PREPARE STMT FROM @STMT;
EXECUTE STMT;set i=i+1;
end while;
END;
//DELIMITER
CALL createManyTable();

    public static void main(String[] args) throws IOException {int i=10000000;int step=40000;File out=new File("E:/data/f_log_data.txt");for(int k=1;k<251;k++){File file=new File("E:/data/temp/f_log_"+k+".txt");StringBuffer sb=new StringBuffer();if(file.exists()){sb=readFile(file,i+step*k);writeFile(out,sb);}}}public static StringBuffer readFile(File file,int start) throws IOException{StringBuffer sb=new StringBuffer();BufferedReader reader=new BufferedReader(new FileReader(file));String line="";    while(line != null){line = reader.readLine();if(line == null){break;}if(line.trim().equalsIgnoreCase("")){continue;}start++;sb.append(start+"\t"+line.trim()+"\r\n");}reader.close();return sb;}public static void writeFile(File file,StringBuffer sb) throws IOException{BufferedWriter writer = new BufferedWriter(new FileWriter(file, true));writer.write(sb.toString());writer.close();}public void writeFile11() throws IOException{// TODO Auto-generated method stubBufferedWriter writer = new BufferedWriter(new FileWriter(new File("D:/driver/data.txt"), true));for(int i=0;i<1000000;i++){if(i%10==0){writer.write("赵"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==1){writer.write("钱"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==2){writer.write("孙"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==3){writer.write("李"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==4){writer.write("郑"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==5){writer.write("吴"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==6){writer.write("周"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==7){writer.write("王"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==8){writer.write("张"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}if(i%10==9){writer.write("刘"+(i/10)+"\t"+ (int)(Math.random()*100)+"\n");}}writer.close();}

load data local infile '/tmp/finance_log_data.txt' into table f_log(`id`,`xx`,

`xx`,.........................

);