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常用Sql - 数据库(内核) - 清泛网 - 专注C/C++及内核技术
...ists tablename;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID` decimal(18,0) NOT NULL COMMENT '递增ID',
`FIELD_1` varchar(32) NOT NULL COMMENT '字段1',
`FIELD_2` varchar(32) NOT NULL COMMENT '字段2',
...
phpcms v9内容页/下载页更新时间（updatetime）为空的解决方法 - 更多技术 ...
... define('INDEX_HTML',true);
$catid = $_POST['info']['catid'] = intval($_POST['info']['catid']);
if(trim($_POST['info']['title'])=='') showmessage(L('title_is_empty'));
$category = $this->categorys[$catid];
...
PHPCMS判断首页列表页内页分类 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...页内页分类有一些有意思的PHPCMS页面判断，比如通过 {$catid} 就可以调出栏目ID，但我们在制作PHPCMS模板时，经常会遇到否栏目，比如首页，就可以这...有一些有意思的PHPCMS页面判断，比如通过 {$catid} 就可以调出栏目ID，但我们在...
常用Sql - 爬虫/数据库 - 清泛IT社区，为创新赋能！
...name;
mysql：建立索引Sql
CREATE TABLE tablename (
`ID` decimal(18,0) NOT NULL COMMENT '递增ID',
`FIELD_1` &...
Integrating the ZXing library directly into my Android application
I'm writing this in mere desperation :) I've been assigned to make a standalone barcode scanner (as a proof of concept) to an Android 1.6 phone.
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Android WebView: handling orientation changes
The issue is the performance following rotation. The WebView has to reload the page, which can be a bit tedious.
20 Answers...
Where to store global constants in an iOS application?
Most of the models in my iOS app query a web server. I would like to have a configuration file storing the base URL of the server. It will look something like this:
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How can I prevent SQL injection in PHP?
If user input is inserted without modification into an SQL query, then the application becomes vulnerable to SQL injection , like in the following example:
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How do I do a not equal in Django queryset filtering?
In Django model QuerySets, I see that there is a __gt and __lt for comparitive values, but is there a __ne / != / <> ( not equals ?)
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Django filter versus get for single object?
I was having a debate on this with some colleagues. Is there a preferred way to retrieve an object in Django when you're expecting only one?
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