大约有 41,000 项符合查询结果（耗时：0.0389秒） [XML]
Why do we always prefer using parameters in SQL statements?
I am very new to working with databases. Now I can write SELECT , UPDATE , DELETE , and INSERT commands. But I have seen many forums where we prefer to write:
...
Converting file size in bytes to human-readable string
...rsion. Can you tell me, though, why you inserted the two invisible Unicode characters U+200C (ZERO WIDTH NON-JOINER) and U+200B (ZERO WIDTH SPACE) after the E oft EiB? Is this intended to be a watermark, so that you can track who used this code? If so, I think you should have made that transparent i...
Why “decimal” is not a valid attribute parameter type?
...arameter types, which are:
One of the following types: bool, byte, char, double, float, int, long, sbyte, short, string, uint, ulong, ushort.
The type object.
The type System.Type.
An enum type, provided it has public accessibility and the types in which it is nested (if any) also h...
MySQL Data - Best way to implement paging?
...e LIMIT clause can be used to constrain the number of rows returned by the SELECT statement. LIMIT takes one or two numeric arguments, which must both be nonnegative integer constants (except when using prepared statements).
With two arguments, the first argument specifies the offset of the first ro...
Lightweight XML Viewer that can handle large files [closed]
... I've just tried it with a 250 MB document and it works like a charm! Only thing I can't figure out is how to "make" it display HTML Entity as a value (eg, HTML Entity (decimal) from fileformat.info/info/unicode/char/160/index.htm)
– Andrija
Jul 13 ...
varbinary to string on SQL Server
...AST it
declare @b varbinary(max)
set @b = 0x5468697320697320612074657374
select cast(@b as varchar(max)) /*Returns "This is a test"*/
This is the equivalent of using CONVERT with a style parameter of 0.
CONVERT(varchar(max), @b, 0)
Other style parameters are available with CONVERT for differ...
Eclipse fonts and background color
...→ General → Editors → Text Editors
Browse Appearance color options
Select background color options, uncheck default, change to black
Select background color options, uncheck default, change to colour of choice
To change text colours
Open Java → Editor → Syntax Colouring
Select ele...
Regular expression for a string containing one word but not another
...ng it checks the string does not contain "details.cfm" (with any number of characters before it).
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Get selected option text with JavaScript
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Try options
function myNewFunction(sel) {
alert(sel.options[sel.selectedIndex].text);
}
<select id="box1" onChange="myNewFunction(this);">
<option value="98">dog</option>
<option value="7122">cat</option>
<option value="142">bird</option&g...
Select TreeView Node on right click before displaying ContextMenu
I would like to select a WPF TreeView Node on right click, right before the ContextMenu displayed.
11 Answers
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