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mysql error 1364 Field doesn't have a default values
...does not address the root cause either because the root cause was a bug in MySQL that was fixed in v5.7.1 - see the answer by B98: stackoverflow.com/a/29854279/5389997 Removing strict_trans_table sql mode makes MySQL more prone to data quality errors, so removing it is not a really good advice.
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Suppress warning messages using mysql from within Terminal, but password written in bash script
When I tried running the following command on MySQL from within Terminal:
25 Answers
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com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
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So, you have a
com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure
java.net.ConnectException: Connection refused
I'm quoting from this answer which also contains a step-by-step MySQL+JDBC tutorial:
If yo...
常用Git命令汇总 - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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#改变暂存区的修改（其实是重置HEAD，将指定版本库的内容状态去覆盖暂存区，从而达到暂存区的改变）
git reset <file> #从暂存区恢复到工作区（不指定版本id，则默认为最后一次提交的版本id）
git r...
mysql blob大小配置介绍 - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...理器（如数据库管理器）不去理会文件是什么，而是关心如何去处理它。但也有专家强调，这种处理大数据对象的方法是把双刃剑，它有可能引发一些问题，如存储的二进制文件过大，会使数据库的性能下降。在数据库中存放体...
error: 'Can't connect to local MySQL server through socket '/var/run/mysqld/mysqld.sock' (2)' — Miss
...roblem started off with me not being able to log in as root any more on my mysql install. I was attempting to run mysql without passwords turned on... but whenever I ran the command
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How to import a single table in to mysql database using command line
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Linux :
In command line
mysql -u username -p databasename < path/example.sql
put your table in example.sql
Import / Export for single table:
Export table schema
mysqldump -u username -p databasename tableName > path/example.sql
This ...
How to take backup of a single table in a MySQL database?
By default, mysqldump takes the backup of an entire database. I need to backup a single table in MySQL. Is it possible? How do I restore it?
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Create new user in MySQL and give it full access to one database
I want to create a new user in MySQL and give it full access only to one database, say dbTest , that I create with a command like create database dbTest; . What would be the MySQL commands to do that?
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App Inventor 2 低功耗蓝牙(BLE) 硬件接入、数据通信及IO控制 - App Invent...
...本文主要介绍一款较为通用、价格低廉的BLE设备从零开始如何利用App Inventor 2开发一款自己专属的手机蓝牙App应用。BLE与经典蓝牙的区别可参考：《低功耗蓝牙(BLE) 和 经典蓝牙(SPP) 的区别》。本文主要通过一款常见的BLE硬件接入...