如果您像躲避瘟疫一样避免存储过程，或者由于权限而无法执行mysql_dump，或者遇到其他各种原因。

我建议采用如下三步法:

1)该查询构建了一堆查询作为结果集。

# =================
# VAR/CHAR SEARCH
# =================
# BE ADVISED USE ANY OF THESE WITH CAUTION
# DON'T RUN ON YOUR PRODUCTION SERVER 
# ** USE AN ALTERNATE BACKUP **

SELECT 
    CONCAT('SELECT * FROM ', A.TABLE_SCHEMA, '.', A.TABLE_NAME, 
           ' WHERE ', A.COLUMN_NAME, ' LIKE \'%stuff%\';') 
FROM INFORMATION_SCHEMA.COLUMNS A
WHERE 
            A.TABLE_SCHEMA != 'mysql' 
AND     A.TABLE_SCHEMA != 'innodb' 
AND     A.TABLE_SCHEMA != 'performance_schema' 
AND     A.TABLE_SCHEMA != 'information_schema'
AND     
        (
            A.DATA_TYPE LIKE '%text%'
        OR  
            A.DATA_TYPE LIKE '%char%'
        )
;

.

# =================
# NUMBER SEARCH
# =================
# BE ADVISED USE WITH CAUTION

SELECT 
    CONCAT('SELECT * FROM ', A.TABLE_SCHEMA, '.', A.TABLE_NAME, 
           ' WHERE ', A.COLUMN_NAME, ' IN (\'%1234567890%\');') 
FROM INFORMATION_SCHEMA.COLUMNS A
WHERE 
            A.TABLE_SCHEMA != 'mysql' 
AND     A.TABLE_SCHEMA != 'innodb' 
AND     A.TABLE_SCHEMA != 'performance_schema' 
AND     A.TABLE_SCHEMA != 'information_schema'
AND     A.DATA_TYPE IN ('bigint','int','smallint','tinyint','decimal','double')
;

.

# =================
# BLOB SEARCH
# =================
# BE ADVISED THIS IS CAN END HORRIFICALLY IF YOU DONT KNOW WHAT YOU ARE DOING
# YOU SHOULD KNOW IF YOU HAVE FULL TEXT INDEX ON OR NOT
# MISUSE AND YOU COULD CRASH A LARGE SERVER
SELECT 
    CONCAT('SELECT CONVERT(',A.COLUMN_NAME, ' USING utf8) FROM ', A.TABLE_SCHEMA, '.', A.TABLE_NAME, 
           ' WHERE CONVERT(',A.COLUMN_NAME, ' USING utf8) IN (\'%someText%\');') 
FROM INFORMATION_SCHEMA.COLUMNS A
WHERE 
            A.TABLE_SCHEMA != 'mysql' 
AND     A.TABLE_SCHEMA != 'innodb' 
AND     A.TABLE_SCHEMA != 'performance_schema' 
AND     A.TABLE_SCHEMA != 'information_schema'
AND     A.DATA_TYPE LIKE '%blob%'
;

结果应该是这样的:

2)然后只需右键单击并使用复制行(标签分隔)

3)将结果粘贴到一个新的查询窗口，并运行到您的心脏内容。

详细信息:我排除了通常在工作台中看不到的系统模式，除非选中了显示元数据和内部模式选项。

我这样做是为了提供一种快速的方法来分析整个主机或DB(如果需要的话)，或者运行OPTIMIZE语句来支持性能改进。

我相信你可以有不同的方法来做到这一点，但以下是对我有用的方法:

-- ========================================== DYNAMICALLY FIND TABLES AND CREATE A LIST OF QUERIES IN THE RESULTS TO ANALYZE THEM
SELECT CONCAT('ANALYZE TABLE ', TABLE_SCHEMA, '.', TABLE_NAME, ';') FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbname';

-- ========================================== DYNAMICALLY FIND TABLES AND CREATE A LIST OF QUERIES IN THE RESULTS TO OPTIMIZE THEM
SELECT CONCAT('OPTIMIZE TABLE ', TABLE_SCHEMA, '.', TABLE_NAME, ';') FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA = 'dbname';

MySQL版本:5.6.23 警告:如果出现以下情况，请不要运行此命令: 您担心会导致表锁(密切关注您的客户端连接) 你不确定你在做什么。 你在试图激怒你的DBA。(你的办公桌前可能已经有人了。)

干杯，杰伊;-]

这是我的解决方案

DROP PROCEDURE IF EXISTS findAll;
CREATE PROCEDURE `findAll`( IN `tableName` VARCHAR( 28 ) , IN `search` TEXT )
BEGIN
       DECLARE finished INT DEFAULT FALSE ;
       DECLARE columnName VARCHAR ( 28 ) ;
       DECLARE stmtFields TEXT ;
       DECLARE columnNames CURSOR FOR
              SELECT DISTINCT `COLUMN_NAME` FROM `information_schema`.`COLUMNS`
              WHERE `TABLE_NAME` = tableName ORDER BY `ORDINAL_POSITION` ;
       DECLARE CONTINUE HANDLER FOR NOT FOUND SET finished = TRUE;
       SET stmtFields = '' ;
       OPEN columnNames ;
       readColumns: LOOP
              FETCH columnNames INTO columnName ;
              IF finished THEN
                     LEAVE readColumns ;
              END IF;
              SET stmtFields = CONCAT(
                     stmtFields , IF ( LENGTH( stmtFields ) > 0 , ' OR' , ''  ) ,
                     ' `', tableName ,'`.`' , columnName , '` REGEXP "' , search , '"'
              ) ;
       END LOOP;
       SET @stmtQuery := CONCAT ( 'SELECT * FROM `' , tableName , '` WHERE ' , stmtFields ) ;
       PREPARE stmt FROM @stmtQuery ;
       EXECUTE stmt ;
       CLOSE columnNames ;
END;

这是检索所有列和表的最简单的查询

SELECT * FROM information_schema.`COLUMNS` C WHERE TABLE_SCHEMA = 'YOUR_DATABASE'

在phpMyAdmin中，可以通过搜索选项卡搜索所有表或名称中有特定字符串的表。

有良好的查询…\ ^ ^ /

如果您不是在代码级别上使用它，只是想检查信息，您可以将整个数据库导出为SQL，然后在文本编辑器上搜索。

我建立在之前的答案，有这个，一些额外的填充，只是为了能够方便地连接所有的输出:

SELECT 
CONCAT('SELECT ''',A.TABLE_NAME, '-' ,A.COLUMN_NAME,''' FROM ', A.TABLE_SCHEMA, '.', A.TABLE_NAME, 
       ' WHERE ', A.COLUMN_NAME, ' LIKE \'%Value%\' UNION')
FROM INFORMATION_SCHEMA.COLUMNS A
WHERE 
        A.TABLE_SCHEMA != 'mysql' 
AND     A.TABLE_SCHEMA != 'innodb' 
AND     A.TABLE_SCHEMA != 'performance_schema' 
AND     A.TABLE_SCHEMA != 'information_schema'
UNION SELECT 'SELECT '''

-- for exact match use: A.COLUMN_NAME, ' LIKE \'Value\' instead

首先运行它，然后粘贴并运行结果(无需编辑)，它将显示使用该值的所有表名和列。

即使下面的建议不应该被认为是最终的解决方案，你也可以通过这样做来实现目标:

SET SESSION group_concat_max_len = 1000000;
SET @search = 'Text_To_Search';

DROP table IF EXISTS table1;
CREATE TEMPORARY TABLE table1 AS 
(SELECT 
    CONCAT('SELECT \'',TABLE_NAME,'\' as \'table_name\',\'',COLUMN_NAME,'\' as \'column_name\',CONVERT(count(*),char) as \'matches\' FROM `',
    TABLE_NAME,'` where `',COLUMN_NAME,'` like \'%',@search,'%\' UNION ') as 'query'
FROM INFORMATION_SCHEMA.COLUMNS WHERE TABLE_SCHEMA = 'db_name' limit 1000000);

set @query = (SELECT GROUP_CONCAT(t1.`query` SEPARATOR '') as 'final_query' from table1 t1 limit 1);
set @query = (SELECT SUBSTRING(@query, 1, length(@query) - 7));

PREPARE stmt FROM @query;
EXECUTE stmt;
DEALLOCATE PREPARE stmt;

请记住:

选项:group_concat_max_len和limit 1000000并不总是必需的，这将取决于您的服务器/IDE配置。以防我加进去。 执行此命令后，您将得到一个3列响应:[table_name]， [column_name]， [matches] 列'matches'是给定表/列中出现的次数。 这个查询非常快。

免责声明:它只对个人使用有用，换句话说，请不要在生产系统中使用它，因为考虑到搜索参数与其他字符串连接，它对SQL注入攻击很敏感。 如果你想创建一个prod. ready函数，那么你需要创建一个带有LOOP的存储过程。