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Efficient SQL test query or validation query that will work across all (or most) databases
...it of research along with help from some of the answers here:
SELECT 1
H2
MySQL
Microsoft SQL Server (according to NimChimpsky)
PostgreSQL
SQLite
SELECT 1 FROM DUAL
Oracle
SELECT 1 FROM any_existing_table WHERE 1=0
or
SELECT 1 FROM INFORMATION_SCHEMA.SYSTEM_USERS
or
CALL NOW()
HSQLDB (tested ...
贝因美创始人谈连续创业 谢宏:蓝海策略下的未来赢家 - 资讯 - 清泛网 - 专...
...程,阐释成功创业创新的关键点。
“现在主要精力在于如何帮助贝因美转型升级,对于我个人而言,原来是创业家,企业家,现在则是转为帮助他们去创业”,谢宏在接受《每日经济新闻》(以下简称NBD)记者专访时透露,8月28...
pip install mysql-python fails with EnvironmentError: mysql_config not found
...
It seems mysql_config is missing on your system or the installer could not find it.
Be sure mysql_config is really installed.
For example on Debian/Ubuntu you must install the package:
sudo apt-get install libmysqlclient-dev
Maybe...
PDOException “could not find driver”
I have just installed Debian Lenny with Apache, MySQL, and PHP and I am receiving a PDOException could not find driver .
3...
XMLHttpRequest cannot load file. Cross origin requests are only supported for HTTP
... wamp? I am running wamp and still receiving this message. Apache, php and mysql are all up-to-date
– user2883071
Dec 24 '14 at 18:52
...
MySQL 启动报错 Table \'mysql.plugin\' doesn\'t exist - 数据库(内核) -...
MySQL 启动报错 Table 'mysql.plugin' doesn't exist 启动报错: opt szy bin mysqld: Table 'mysql.plugin ' doesn 't exist141211 15:06:12 [ERROR] Can 't open t...启动报错:
/opt/szy/bin/mysqld: Table \'mysql.plugin\' doesn\'t exist
141211 15:06:12 [ERROR] Can\'t open the mysql.plug...
MySQL Server has gone away when importing large sql file
...
As stated here:
Two most common reasons (and fixes) for the MySQL server has gone away
(error 2006) are:
Server timed out and closed the connection. How to fix:
check that wait_timeout variable in your mysqld’s my.cnf configuration file is large enough. On Debian: su...
Log all queries in mysql
Is it possible for me to turn on audit logging on my mysql database?
10 Answers
10
...
家政O2O百家争鸣后的卡位战:烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...免去烧钱补贴做推广。但这绝对不是一个良性的生意。”如何在同质化和与巨头的竞争中突围,真正实现赢利,是所有创业者们都迫切所希望的。
用户体验是关键
无论哪种行业,若想赢得市场,用户体验都是关键。北京晨报...
家政O2O百家争鸣后的卡位战:烧钱补贴并非良药 - 资讯 - 清泛网 - 专注IT技能提升
...免去烧钱补贴做推广。但这绝对不是一个良性的生意。”如何在同质化和与巨头的竞争中突围,真正实现赢利,是所有创业者们都迫切所希望的。
用户体验是关键
无论哪种行业,若想赢得市场,用户体验都是关键。北京晨报...