大约有 42,000 项符合查询结果（耗时：0.0464秒） [XML]
Changing the maximum length of a varchar column?
...
Also it works for MySQL and this question is tagged [TSQL] so it's in the wrong place
– jean
Mar 28 '18 at 10:55
6
...
Insert string at specified position
...er than the putinplace function. I was using the later function to parse a mysql query. Although the output looked alright, the query resulted in a error which took me a while to track down. The following is my version of the stringInsert function requiring only one parameter.
function stringInsert...
Xcode — what is $(SRCROOT)?
... need to update some paths. The library search paths all start with $(SRCROOT) . What does that mean?
3 Answers
...
VR硬件行业洗牌进行时 70%创业公司倒闭转行做内容 - 资讯 - 清泛网 - 专注C...
...产生购买欲。所以优质内容是积累用户的基础。”
关于如何抓住内容的切入点，作为是国内内容创业的先行者，超凡视幻COO郭会娟在接受《证券日报》记者采访时表示，“从VR内容应用上来看目前可以粗略分为主要三方面，一...
How to reset a single table in rails?
...ipes all data and resets the autoincrement counters in the table. Works in MySQL and Postgres, does not work in Sqlite.
share
|
improve this answer
|
follow
|
...
Data binding to SelectedItem in a WPF Treeview
...e namespace declaration):
<TreeView ItemsSource="{Binding Path=Root.Children}" local:TreeViewHelper.SelectedItem="{Binding Path=SelectedItem, Mode=TwoWay}">
</TreeView>
Now you can bind the selected item, and also set it in your view model to change it programmatically, s...
PostgreSQL query to list all table names?
...hema.tables
WHERE table_type='BASE TABLE'
AND table_schema='public';
For MySQL you would need table_schema='dbName' and for MSSQL remove that condition.
Notice that "only those tables and views are shown that the current user has access to". Also, if you have access to many databases and want to ...
django syncdb and an updated model
...
If you run Django with Apache and MySQL, restart apache after making migration with makemigrations.
share
|
improve this answer
|
fol...
千万别惹程序员 - 轻松一刻 - 清泛网 - 专注C/C++及内核技术
...一些精细的调优工作，明显不行。这和Ruby很像。
PHP没有MySQL，明显是被幽默了一把。不过最近对PHP的批评越来越多，不过，facebook的PHP的引擎HiPo已经很牛B了。
Perl是一本日本武士刀，是忍者玩的语言。
VB，就是一个玩具。你...
TokuMX vs. MongoDB 性能对比 - 大数据 & AI - 清泛网 - 专注C/C++及内核技术
...占用也比MongoDB少10%左右）。这种思路不稀奇，5.x版本的MySQL，如果设定file_format为Barracuda，也可以直接对表做压缩，同时不影响外部操作；提高写入速度则值得一提，原来TokuMX的做法是使用 分形树索引（Fractal Tree Index） ，替代...