...n transactions and ambient transactions. A connection transaction (such as SqlTransaction) is tied directly to the db connection (such as SqlConnection), which means that you have to keep passing the connection around - OK in some cases, but doesn't allow "create/use/release" usage, and doesn't allo...

...o < 1.7 has a handy management command that will give you the necessary SQL to drop all the tables for an app. See the sqlclear docs for more information. Basically, running ./manage.py sqlclear my_app_name gets you get the SQL statements that should be executed to get rid of all traces of the ap...

...roduce them if your database doesn't support them) - this is a function of SQL-Server (see info) and part of the reason I wrote this whole thing in the first place. Part 2 Subqueries - what they are, where they can be used and what to watch out for Cartesian joins AKA - Oh, the misery! There a...

... figure out the how. Examples of declarative programming languages are SQL and Prolog. share edited Aug 28 '16 at 9:19 Aquarius_...

...解他们是怎么想的。 来来来，听听九鼎投资的项目经理如何评价各地创业公司，在公司起名上究竟自带了哪些人设：上海的创业公司在自嘲道路上越走越远，杭州的创业公司已经和恶搞干上了，只有我们南京的，还在坚持硬挣(...

...时候我还没睡，怎么了？”科比:“没，没什么。。。”如何收场？班主任课前都会讲笑话，大家听腻了没有笑点，班长就说班主任再讲就一定要笑。班主任垂头丧气进来，说爷爷死了。二货同桌在听歌我碰他一下，他边鼓掌边...

...tialize方法前，需要手动释放所有的全局或者静态变量。 如何手动释放呢： 设置指针指向NULL 调用Release方法，注意是要调用智能指针的Release方法，而不是内部指针的，指针指针的Release方法，会调用内部指针的Relase，然后设...

...生成dump文件，我们就能对其进行源码级别的调试，那么如何生成崩溃dump文件呢？ 《一个宏命令，就可以程序崩溃时生成dump文件》 《BugTrap：程序崩溃快照、bug跟踪之利器》 异常 0xc0000005 dump

...中有输入后，消息框便会提示其输入的内容。 另外，如何设置输入框焦点，请参照：https://www.tsingfun.com/it/cpp/1538.htmlCreateWindow 动态创建 EditBox

...初入站长行列，做一个导航站门槛相对最低，但是我们该如何选择一套开源导航网站呢？这里笔者待大家体验一下目前算是比较有名气的114la推出的php开源网站源码。首先网上有很多高仿知名导航网站的源码，但是它们大多数不...