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关于php的socket初探 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...连接的模型都应该被称为多路复用，目前比较常用的有 select/poll/epoll/kqueue 这些 IO 模型（目前也有像 Apache 这种每个连接用单独的进程/线程来处理的 IO 模型，但是效率相对比较差，也很容易出问题，所以暂时不做介绍了）。在...
Automating the InvokeRequired code pattern
...
Create a ThreadSafeInvoke.snippet file, and then you can just select the update statements, right click and select 'Surround With...' or Ctrl-K+S:
<?xml version="1.0" encoding="utf-8" ?>
<CodeSnippet Format="1.0.0" xmlns="http://schemas.microsoft.com/VisualStudio/2005/CodeSnip...
How can I open a cmd window in a specific location?
...ing you a
quick way to open a command window
(cmd.exe) pointing at the selected
folder.
EDIT : This software will not work on any version of Windows apart from Windows XP.
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How do I delete multiple rows in Entity Framework (without foreach)
...Expression<Func<T, bool>> filter) where T : class
{
string selectSql = db.Set<T>().Where(filter).ToString();
string fromWhere = selectSql.Substring(selectSql.IndexOf("FROM"));
string deleteSql = "DELETE [Extent1] " + fromWhere;
db.Database.ExecuteSqlCommand(deleteSq...
How can I use Async with ForEach?
...ext db = new DataLayer.DataContext())
{
var tasks = db.Groups.ToList().Select(i => GetAdminsFromGroupAsync(i.Gid));
var results = await Task.WhenAll(tasks);
}
The benefits of this approach over giving an async delegate to ForEach are:
Error handling is more proper. Exceptions from asy...
ListView item background via custom selector
...t possible to apply a custom background to each Listview item via the list selector?
10 Answers
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ORA-12514 TNS:listener does not currently know of service requested in connect descriptor
... find out valid service names, you can use the following query in oracle:
select value from v$parameter where name='service_names'
Once I updated tnsnames.ora to:
TEST =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = *<validhost>*)(PORT = *<validport>*...
Why does “_” (underscore) match “-” (hyphen)?
...u want to use the underscore in like as a literal, you have to escape it:
select * from a where name like '%taz\_manual%.pdf%';
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Java JDBC - How to connect to Oracle using Service Name instead of SID
...ment = myConnection.createStatement();
String readRecordSQL = "select * from sa_work_order where WORK_ORDER_NO = '1503090' ";
ResultSet myResultSet = sqlStatement.executeQuery(readRecordSQL);
while (myResultSet.next()) {
System.out.println("Recor...
Entity Attribute Value Database vs. strict Relational Model Ecommerce
...uld be domain models. Sort of like a serialization, but you could use SQL selects on indexed text fields. No multiple selects per record. All the "cost" happens in RAM.
– Zachary Scott
Jun 15 '10 at 3:06
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