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1、准备工作
查看数据库:
切换数据库:
查看表名字
2、单个表导出
必要替换导出csv文件目录和表名
- SELECT *
- INTO OUTFILE '目录/文件名.csv'
- FIELDS TERMINATED BY ','
- ENCLOSED BY '"'
- LINES TERMINATED BY '\n'
- FROM 表名;
复制代码 如果表太大,excel无法打开,可以显示导出的行数,例如10000行
- SELECT *
- INTO OUTFILE '目录/文件名.csv'
- FIELDS TERMINATED BY ','
- ENCLOSED BY '"'
- LINES TERMINATED BY '\n'
- FROM 表名
- LIMIT 10000;
复制代码 3、导出全部表
当表太多的时候,可以使用下面的方法,一次性导出全部表;
必要替换数据库名。
- DELIMITER //
-
- CREATE PROCEDURE ExportAllTablesToCSV()
- BEGIN
- DECLARE done INT DEFAULT FALSE;
- DECLARE tName VARCHAR(255);
- DECLARE tCursor CURSOR FOR SELECT table_name FROM information_schema.tables WHERE table_schema = '数据库名';
- DECLARE CONTINUE HANDLER FOR NOT FOUND SET done = TRUE;
-
- OPEN tCursor;
- read_loop: LOOP
- FETCH tCursor INTO tName;
- IF done THEN
- LEAVE read_loop;
- END IF;
-
- SET @stmt = CONCAT('SELECT * FROM ', tName, ' INTO OUTFILE \'', tName, '.csv\' FIELDS TERMINATED BY \',\' OPTIONALLY ENCLOSED BY \'"\' LINES TERMINATED BY \'\n\'');
- PREPARE s1 FROM @stmt;
- EXECUTE s1;
- DEALLOCATE PREPARE s1;
- END LOOP;
- CLOSE tCursor;
- END //
-
- DELIMITER ;
-
- CALL ExportAllTablesToCSV();
复制代码 4、修复
如果在导出时,报错:
- Table '表名' is marked as crashed and should be repaired
复制代码 检查表:
修复表:
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