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SQL select only rows with max value on a column [duplicate]
...All you need is a GROUP BY clause with the MAX aggregate function:
SELECT id, MAX(rev)
FROM YourTable
GROUP BY id
It's never that simple, is it?
I just noticed you need the content column as well.
This is a very common question in SQL: find the whole data for the row with some max value in a co...
Register Application class in Manifest?
... global state of my application. But I'm unable to register it in Manifest file? Any idea how to do this?
3 Answers
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How to use GROUP BY to concatenate strings in SQL Server?
...
[Note: This solution only works on SQL 2005 and later. Original question didn't specify the version in use.]
CREATE TABLE #YourTable ([ID] INT, [Name] CHAR(1), [Value] INT)
INSERT INTO #YourTable ([ID],[Name],[Value]) VALUES (1,'A',4)
INSERT INTO #YourTable ([ID],[Name],[Value]) VALUES (1,'B',8)
...
OnNotify函数 ON_NOTIFY消息总结 - C/C++ - 清泛网 - 专注C/C++及内核技术
...pResult)
{
NMHDR* hdr=(NMHDR*)lParam;
if( hdr->code==NM_CLICK && hdr->idFrom==IDC_BUTTON1)
{
MessageBox(L"你单击了Button1",L"消息");
}
return CDialog::OnNotify(wParam,lParam,pResult);
}
（OnNotify()不响应按钮单击事件？）
自定义WM_NOTIFY消息
习惯了用...
Correct use of Multimapping in Dapper
... ran a test that works fine:
var sql = "select cast(1 as decimal) ProductId, 'a' ProductName, 'x' AccountOpened, cast(1 as decimal) CustomerId, 'name' CustomerName";
var item = connection.Query<ProductItem, Customer, ProductItem>(sql,
(p, c) => { p.Customer = c; return p; }, splitOn:...
Laravel Migration Change to Make a Column Nullable
I created a migration with unsigned user_id . How can I edit user_id in a new migration to also make it nullable() ?
9 ...
Read Post Data submitted to ASP.Net Form
...ng like that and then convert it to a byte array, or what? Im uploading a file to the serve.r
– Fallenreaper
Sep 6 '12 at 19:42
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Build.scala, % and %% symbols meaning
...ion of scala you are running. This is to avoid having to change your build file when you update Scala.
More information here
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Better explanation of when to use Imports/Depends
...nism (which also requires import or importFrom directives in the NAMESPACE file), matters would be improved in two ways. (1) The package would itself gain control over which mgcv function is used. (2) By keeping the main search path clear of the imported objects, it would not even potentially break ...
Adding a build configuration in Xcode
...nfigurations.
Configurations are project-wide. If you select the project file, the menu will work, as shown here.
You also have to make sure that the 'Info' tab is selected, the options are still greyed out if you are on the 'Build Settings' page
...