大约有 43,000 项符合查询结果（耗时：0.0249秒） [XML]
LINQ: “contains” and a Lambda query
...Here is how you can use Contains to achieve what you want:
buildingStatus.Select(item => item.GetCharValue()).Contains(v.Status) this will return a Boolean value.
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How to create a SQL Server function to “join” multiple rows from a subquery into a single delimited
...
If you're using SQL Server 2005, you could use the FOR XML PATH command.
SELECT [VehicleID]
, [Name]
, (STUFF((SELECT CAST(', ' + [City] AS VARCHAR(MAX))
FROM [Location]
WHERE (VehicleID = Vehicle.VehicleID)
FOR XML PATH ('')), 1, 2, '')) AS Locations
FROM [...
How to convert an entire MySQL database characterset and collation to UTF-8?
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You can create the sql to update all tables with:
SELECT CONCAT("ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CHARACTER SET utf8 COLLATE utf8_general_ci; ",
"ALTER TABLE ",TABLE_SCHEMA,".",TABLE_NAME," CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; ")
AS a...
MySQL - length() vs char_length()
... in two bytes. Or UTF-8, where the number of bytes varies. For example:
select length(_utf8 '€'), char_length(_utf8 '€')
--> 3, 1
As you can see the Euro sign occupies 3 bytes (it's encoded as 0xE282AC in UTF-8) even though it's only one character.
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C#: how to get first char of a string?
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Select the oldest tab to see that it as Matthew
– johnc
Oct 7 '10 at 5:10
11
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SQL Server 2008: How to query all databases sizes?
...
with fs
as
(
select database_id, type, size * 8.0 / 1024 size
from sys.master_files
)
select
name,
(select sum(size) from fs where type = 0 and fs.database_id = db.database_id) DataFileSizeMB,
(select sum(size) from fs wh...
Insert Update trigger how to determine if insert or update
... track "before" and "after" data. So you can use something like IF EXISTS (SELECT * FROM DELETED) to detect an update. You only have rows in DELETED on update, but there are always rows in INSERTED.
Look for "inserted" in CREATE TRIGGER.
Edit, 23 Nov 2011
After comment, this answer is only for INSER...
Building an MFC project for a non-Unicode character set is deprecated ...
...MBCS) 的 MFC 库 (DLL) 不再包含于 Visual Studio 中，但是可用作插件，您可以在任何装有 Visual Studio Professional、Visual Studio Premium 或 Visual Studio Ultimate 的计算机上下载和安装。（在 Visual Studio 中，必须启用 MFC。）安装需要大约 440 MB 磁...
Discuz菜单栏下面广告怎么弄？ - 更多技术 - 清泛网 - 专注C/C++及内核技术
...www.discuz.net/thread-1664859-1-1.html" target="_blank">Yeswan-绑定域名插件</a></em>
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Discuz 菜单栏 广告
扩展jQuery的功能限制只能输入数字 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...通常是样板式的，因此我们可以考虑将其做成一个jQuery的插件以方便使用。
// 限制只能输入数字
$.fn.onlyNum = function () {
$(this).keypress(function (event) {
var eventObj = event || e;
var keyCode = eventObj.keyCode || eventObj.which;
...