大约有 47,000 项符合查询结果(耗时:0.0540秒) [XML]
SQL parser library for Java [closed]
... SQL_PARSER.createStatement(query); How can I get the Query body, i.e. the Select, From, Where, etc values?
– quarks
Apr 4 '15 at 17:56
...
Regex group capture in R with multiple capture-groups
...he capture group:
However, in order for this to work, you must explicitly select elements outside your capture group as mentioned in the gsub() help.
(...) elements of character vectors 'x' which are not substituted will be returned unchanged.
So if your text to be selected lies in the mi...
Index (zero based) must be greater than or equal to zero
...care.
//Wrong Code:
string name="my name";
string age=25;
String.Format(@"Select * from table where name='{1}' and age={1}" +name, age);
//Right Code:
string name="my name";
string age=25;
String.Format(@"Select * from table where name='{1}' and age={1}" , name, age);
...
Check for column name in a SqlDataReader object
... called "EmployeeName" but also give it an alias of "EmpName", and doing a select for either name would return the data in that column. With me so far?
Now imagine that there's an ADO.NET provider for that database, and they've coded up an IDataReader implementation for it which takes column aliase...
How to detect iPhone 5 (widescreen devices)?
..., when comparing floating points, as pointed in the comments by H2CO3.
So from now on you can use it in standard if/else statements:
if( IS_IPHONE_5 )
{}
else
{}
Edit - Better detection
As stated by some people, this does only detect a widescreen, not an actual iPhone 5.
Next versions of the i...
Notification when a file changes?
...oid CreateFileWatcher(string path)
{
// Create a new FileSystemWatcher and set its properties.
FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = path;
/* Watch for changes in LastAccess and LastWrite times, and
the renaming of files or directories. */
wa...
How do I set cell value to Date and apply default Excel date format?
...ond cell as a date (and time). It is important to create a new cell style from the workbook otherwise you can end up modifying the built in style and effecting not only this cell but other cells.
– CGK
Sep 24 '13 at 13:27
...
How to view the list of compile errors in IntelliJ?
... Apparently this "problems" toolbar is only available if you select the "auto compile" mode. see here: jetbrains.com/help/idea/2016.2/problems-tool-window.html
– atom88
Nov 18 '16 at 21:17
...
关于php的socket初探 - PHP - 清泛IT论坛,有思想、有深度
...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...
How To: Best way to draw table in console app (C#)
...alues,
string[] columnHeaders,
params Func<T, object>[] valueSelectors)
{
return ToStringTable(values.ToArray(), columnHeaders, valueSelectors);
}
public static string ToStringTable<T>(
this T[] values,
string[] columnHeaders,
params Func<T, object>[]...
