如何在mysql中将表导出成不同名称的平面文件? [英] how to export table into flat file with different name in mysql?
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问题描述
我正在使用 -
SELECT * INTO OUTFILE 'd:\\result.txt'
FIELDS TERMINATED BY ',' OPTIONALLY ENCLOSED BY '"'
LINES TERMINATED BY '\n'
FROM result;
现在,我想通过放在程序中每天运行这个脚本,我想使用文件名result,其中包含日期或其他动态数字,我可以每天增加它会给我错误的重复文件名。
Now I want to run this script daily by putting it in procedure. And I want use file name "result" with date or some other dynamic number which i can increase daily. Otherwise it will give me error for the duplicate file name.
我应该像 -
declare var_result varchar(100);
set var_result = 'result01012014';
SELECT * INTO OUTFILE var_result
................................
是否可能
推荐答案
而不是创建存储过程
您可以创建一个 shell或php
脚本相同的
Instead of creating Stored Procedure
You can create a shell or php
script for the same
我通常使用的shell脚本的示例
Example of a shell script that I usually use
#!/bin/bash
location="/home/abdul/Desktop"
user="root"
pass="root"
table="City"
database="world_innodb"
mysql -u$user -p$pass --column-names -e "SELECT * FROM $database.$table;" | sed 's/\t/"|"/g;s/^/"/;s/$/"/;s/\n//g' > $location/$table-$(date +"%Y-%m-%d").csv
这将创建文件名,如 City-2014-02-20.csv
存储过程相同的
DROP PROCEDURE IF EXISTS ExportToCSV;
DELIMITER $$
CREATE PROCEDURE `ExportToCSV`()
BEGIN
SET @cur_date = CURRENT_DATE();
SET @path = "/tmp/";
SET @table_name = "City";
SET @VarSQL = CONCAT('SELECT * INTO OUTFILE \'' ,@path,@table_name,'-',@cur_date,'.csv\' FIELDS TERMINATED BY ''\,','\' OPTIONALLY ENCLOSED BY \'','"' ,'\' LINES TERMINATED BY \'','\\n','\' FROM ',@table_name,';' );
PREPARE stmt FROM @VarSQL;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;
END$$
DELIMITER ;
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