应用程序不了找到mysql中的表，客户端可以正常打开表

Posted 2022-07-20 moonfans

原因是mysql中区分大小写的参数：lower-case-table-names=1 

默认是区分大小写的，程序中代码可能是大小写混合的，其中访问数据库的sql是大小写混合的。所以找不到数据库中的表 tis.platform_user

解决方法：设置mysql忽略数据库表名大小写 

通过设置 lower-case-table-names=1  实现忽略表名大小写

<wiz_code_mirror>

 

 

 

 

 

[root@tisdb ~]# cat /etc/my.cnf

# For advice on how to change settings please see

# http://dev.mysql.com/doc/refman/5.7/en/server-configuration-defaults.html

# *** DO NOT EDIT THIS FILE. It‘s a template which will be copied to the

# *** default location during install, and will be replaced if you

# *** upgrade to a newer version of MySQL.

?

[mysqld]

?

# Remove leading # and set to the amount of RAM for the most important data

# cache in MySQL. Start at 70% of total RAM for dedicated server, else 10%.

# innodb_buffer_pool_size = 128M

?

# Remove leading # to turn on a very important data integrity option: logging

# changes to the binary log between backups.

#log_bin

?

# These are commonly set, remove the # and set as required.

basedir = /usr/local/mysql

datadir = /mydata/mysql 

# port = .....

# server_id = .....

# socket = .....

?

# Remove leading # to set options mainly useful for reporting servers.

# The server defaults are faster for transactions and fast SELECTs.

# Adjust sizes as needed, experiment to find the optimal values.

# join_buffer_size = 128M

# sort_buffer_size = 2M

# read_rnd_buffer_size = 2M 

?

sql_mode=NO_ENGINE_SUBSTITUTION,STRICT_TRANS_TABLES 

max_allowed_packet=16M

character-set-server=utf8

collation-server=utf8_general_ci

lower-case-table-names=1

log_bin = mysql-bin

server_id = 10

?

[client]

default-character-set=utf8

[root@tisdb ~]# 

 

 

<wiz_code_mirror>

 

 

 

 

 

 

 

mysql> show variables like ‘%lower%‘;

+------------------------+-------+

| Variable_name          | Value |

+------------------------+-------+

| lower_case_file_system | OFF   |

| lower_case_table_names | 1     |

+------------------------+-------+

2 rows in set (0.00 sec)

?

mysql> 

 

 

重启服务后配置生效，应用程序可以正常访问到mysql中的数据表。

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