大约有 47,000 项符合查询结果（耗时：0.0757秒） [XML]
What's the difference between VARCHAR and CHAR?
...CHAR(10),
Street VARCHAR(10));
Insert into temp
values('Pune','Oxford');
select length(city), length(street) from temp;
Output will be
length(City) Length(street)
10 6
Conclusion: To use storage space efficiently must use VARCHAR Instead CHAR if variable length is ...
LINQ to read XML
...query
var lv1s = from lv1 in xdoc.Descendants("level1")
select new {
Header = lv1.Attribute("name").Value,
Children = lv1.Descendants("level2")
};
//Loop through results
foreach (var lv1 in lv1s){
result.Ap...
PreparedStatement with list of parameters in a IN clause [duplicate]
... possibleValue.size(); i++ ) {
builder.append("?,");
}
String stmt = "select * from test where field in ("
+ builder.deleteCharAt( builder.length() -1 ).toString() + ")";
PreparedStatement pstmt = ...
And then happily set the params
int index = 1;
for( Object o : possibleVal...
How do I stop Chrome from yellowing my site's input boxes?
...e property to none.
input[type="text"], input[type="password"], textarea, select {
outline: none;
}
In cases where the browser may add a background color as well this can be fixed by something like
:focus { background-color: #fff; }
...
mingw-w64 threads: posix vs win32
...API) which GCC can then link in to enable all the fancy features." So if i select the win32 model, GCC can still enable all the features, because it makes use of winpthreads? But in the bullet below, you write "win32: No C++11 multithreading features". I don't understand. Does "which GCC can then li...
How To Auto-Format / Indent XML/HTML in Notepad++
...extFX as a plugin. Plugins -> Plugin Manager -> Show Plugin Manager. Select TextFX and install. After a restart of npp, the menu 'TextFS' should be visible.
– remipod
Mar 5 '12 at 8:59
...
conditional unique constraint
... CheckActiveCount(
@Id INT
) RETURNS INT AS BEGIN
DECLARE @ret INT;
SELECT @ret = COUNT(*) FROM CheckConstraint WHERE Id = @Id AND RecordStatus = 1;
RETURN @ret;
END;
GO
ALTER TABLE CheckConstraint
ADD CONSTRAINT CheckActiveCountConstraint CHECK (NOT (dbo.CheckActiveCount(Id) > 1 AND...
Is there a predefined enumeration for Month in the .NET library?
...es = DateTimeFormatInfo.CurrentInfo.MonthNames.Take(12).ToList();
var monthSelectList = monthNames.Select(
m => new { Id = monthNames.IndexOf(m) + 1, Name = m });
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How to retrieve checkboxes values in jQuery
...
You can also return all selected checkboxes value in comma separated string.
This will also make it easier for you when you send it as a parameter to SQL
Here is a sample that return all selected checkboxes values that have the name "chkboxName" in...
Calculate a MD5 hash from a string
... (
Encoding.UTF8.GetBytes(observedText)
)
select ba.ToString("x2")
);
}
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