Cannot create PoolableConnectionFactory (Unknown database 'DB_NAME'):
com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'DB_NAME'

Because, there was no Database scheme in the mysql database engine. So, to solve this:

  1. In console window type "mysql-u root-p" if your mysql username is root and you have a password.
  2. Create new database using "create database DB_NAME".
  3. Exit the mysql console as you don't need it, using "exit" command.

Now, you can restart your grails application and this exception will not show up again.

Wish you best of luck.

Unknown database 'DB_NAME'的更多相关文章

  1. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'smvch'

    1.错误描述 INFO:2015-05-01 14:20:44[main] - Initializing c3p0 pool... com.mchange.v2.c3p0.ComboPooledDat ...

  2. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'user'

    1.错误描述 2014-7-12 21:06:05 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager 信息: I ...

  3. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'test'

    com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'test' 报错原因是:MySQL数据库没有 ...

  4. Django提示Unknown database处理方法

    cmd.exe运行别人的程序 C:\Python27\Python.exe E:\Django\Guest\Guest\manage.py runserver 提示 django.db.utils.I ...

  5. MySQL的登陆错误：ERROR 1049 (42000): Unknown database 'root'

    当初刚装MySQL的时候,到网上查的命令行登陆MySQL的方法都是mysql -u root -p password mysql -r root -p 123456 但是奇怪的是这条命令我输进去死活都 ...

  6. com.mysql.jdbc.exceptions.jdbc4.MySQLSyntaxErrorException: Unknown database 'user'

    1.错误描写叙述 2014-7-12 21:06:05 com.mchange.v2.c3p0.impl.AbstractPoolBackedDataSource getPoolManager 信息: ...

  7. Create schema error (unknown database schema '')

    Andrey Devyatka 4 years ago Permalink Raw Message Hi,Please tell me, can I use the static library in ...

  8. [odb-users] Create schema error (unknown database schema '')

    Boris Kolpackov boris at codesynthesis.comFri May 31 11:13:02 EDT 2013 Previous message: [odb-users] ...

  9. org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Unknown database 'jdsc')

    org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFactory (Unknown databas ...

随机推荐

  1. UVA610 - Street Directions(Tarjan)

    option=com_onlinejudge&Itemid=8&category=153&page=show_problem&problem=551"> ...

  2. Asp.Netserver控件开发的Grid实现(三)列编辑器

    以下是GridColumnsEditor的实现代码: GridColumnsEditor.cs using System; using System.Collections.Generic; usin ...

  3. img 的 align 属性

    AbsBottom 图像的下边缘与同一行中最大元素的下边缘对齐. AbsMiddle 图像的中间与同一行中最大元素的中间对齐. Baseline 图像的下边缘与第一行文本的下边缘对齐. Bottom ...

  4. ThinkPHP - 自动创建 + 自动验证 + 自动完成

    自动创建:创建数据模型. $User->create(); 自动验证:验证提交的表单数据. protected $_validate = array( array('verify','requi ...

  5. 【JQuery】Could not find action or result No result defined for action

    ajax调用时,返回值错误了.一般返回null即可.

  6. C语言结构体变量内存分配与地址对齐

    地址对齐简单来说就是为了提高访问内存的速度. 数组的地址分配比较简单,由于数据类型相同,地址对齐是一件自然而然的事情. 结构体由于存在不同基本数据类型的组合,所以地址对齐存在不同情况,但总体来说有以下 ...

  7. ZOJ2971 Give Me the Number 【模拟】

    这道题目使用Map. 然后一次性遍历下来即可. QAQ 注意初始化的时候小心点不要错.. Source Code: //#pragma comment(linker, "/STACK:167 ...

  8. HDU 4891

    一道简单的模拟题 需要要匹配{} 和 $$ 符里面的东西即可 //#pragma comment(linker, "/STACK:16777216") //for c++ Comp ...

  9. libgdx, mouse 关节

    鼠标与body的交互就靠这个mouse 关节了. 在使用中:主要分成3步: 步1:mouseDown : 这个时期,调用world->QueryAABB.它有一个回调接口,并依据鼠标指针指定一个 ...

  10. AsyncTask delay延迟执行 或者顺序执行 问题

    惯用AsyncTask的朋友可能会发现AsyncTask的坑: Android executes AsyncTask tasks before Android 1.6 and again as of ...