大约有 19,000 项符合查询结果（耗时：0.0445秒） [XML]
Check if SQL Connection is Open or Closed
...
Here is what I'm using:
if (mySQLConnection.State != ConnectionState.Open)
{
mySQLConnection.Close();
mySQLConnection.Open();
}
The reason I'm not simply using:
if (mySQLConnection.State == ConnectionState.Closed)
{
mySQLConnection.Open()...
How to convert array to SimpleXML
...y (
'stack' => 'overflow',
),
);
$xml = new SimpleXMLElement('<root/>');
array_walk_recursive($test_array, array ($xml, 'addChild'));
print $xml->asXML();
results in
<?xml version="1.0"?>
<root>
<blub>bla</blub>
<bar>foo</bar>
<overfl...
Get the Last Inserted Id Using Laravel Eloquent
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@milz I have MySQL trigger that generate the uuid for a custom field named aid and I have set $incrementing = false; but It does not returned too!
– SaidbakR
Apr 8 '17 at 13:29
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Checking if a field contains a string
.../reference/sql-comparison/
http://php.net/manual/en/mongo.sqltomongo.php
MySQL
SELECT * FROM users WHERE username LIKE "%Son%"
MongoDB
db.users.find({username:/Son/})
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how to get last insert id after insert query in codeigniter active record
...n insert query (active record style) used to insert the form fields into a MySQL table. I want to get the last auto-incremented id for the insert operation as the return value of my query but I have some problems with it.
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How to exit in Node.js
... encounter, including Unix shells like Bash, the shells for databases like MySQL and PostgreSQL, and the REPLs for programming languages like Python, PHP, and Ruby. It is the only method of exiting shells I ever use.
– Mark Amery
May 23 '15 at 22:52
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Why historically do people use 255 not 256 for database field magnitudes?
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255 was the varchar limit in mySQL4 and earlier.
Also 255 chars + Null terminator = 256
Or 1 byte length descriptor gives a possible range 0-255 chars
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Sequelize.js delete query?
...#L207-217
https://github.com/sdepold/sequelize/blob/master/lib/connectors/mysql/query-generator.js
What I found:
There isn't a deleteAll method, there's a destroy() method you can call on a record, for example:
Project.find(123).on('success', function(project) {
project.destroy().on('success',...
怎么往SetTimer的回调函数传递参数 - C/C++ - 清泛网 - 专注C/C++及内核技术
...关于windows消息大致已经说清了，下面解决第二个问题，如何向SetTimer的回调函数传递自定义参数。再看TimerProc：
VOID CALLBACK TimerPro(HWND hwnd,UINT uMsg,UINT_PTR idEvent,DWORD dwTime);
看看MSDN关于第三个参数idEvent的解释，就是Timer的id，我...
使用App Inventor 2 控制物联网设备/低功耗蓝牙设备(BLE) · App Inventor 2 中文网
...的服务和特征，而无需知道确切的 UUID 或有关服务和特征如何工作的详细信息。 所选择的服务和特征使得能够读取或写入特征数据值。 例如，通过电池电量服务和特性，可以监控所连接设备的电池电量。 由于 GATT 服务和特性的...