大约有 47,000 项符合查询结果（耗时：0.0559秒） [XML]
How to grant remote access permissions to mysql server for user?
...s not working on mac try to change 'root'@'%' with 'root'@'localhost' or /etc/hosts name of the computer you are granting privileges to.
– moshe beeri
Sep 10 '15 at 11:28
2
...
Is it possible to Pivot data using LINQ?
...lect(g => new {
CustId = g.Key,
Jan = g.Where(c => c.OrderDate.Month == 1).Sum(c => c.Qty),
Feb = g.Where(c => c.OrderDate.Month == 2).Sum(c => c.Qty),
March = g.Where(c => c.OrderDate.Month == 3).Sum(c => c.Qty)
});
GroupBy in Linq does not...
Switch statement: must default be the last case?
...
The case statements and the default statement can occur in any order in the switch statement. The default clause is an optional clause that is matched if none of the constants in the case statements can be matched.
Good Example :-
switch(5) {
case 1:
echo "1";
break;
case ...
Filling a DataSet or DataTable from a LINQ query result set
...has a CopyToDataTable method:
IEnumerable<DataRow> query =
from order in orders.AsEnumerable()
where order.Field<DateTime>("OrderDate") > new DateTime(2001, 8, 1)
select order;
// Create a table from the query.
DataTable boundTable = query.CopyToDataTable<DataRow>(...
I've found my software as cracked download on Internet, what to do?
...
@Jon B: It's not the same. When someone orders food in a restaurant and leaves without paying, the restaurant incurs a financial loss. In the case of cracks, it's "just" the loss of a sales prospect. It certainly is sad, but as long as you have enough honest custom...
The type must be a reference type in order to use it as parameter 'T' in the generic type or method
...koverflow.com%2fquestions%2f6451120%2fthe-type-must-be-a-reference-type-in-order-to-use-it-as-parameter-t-in-the-gen%23new-answer', 'question_page');
}
);
Post as a guest
...
SQL join: selecting the last records in a one-to-many relationship
... customer c INNER JOIN
(SELECT RANK() OVER (PARTITION BY customer_id ORDER BY date DESC) r, *
FROM purchase) p
ON (c.id = p.customer_id)
WHERE p.r = 1
share
|
improve this answer...
Git: Find the most recent common ancestor of two branches
...
which is enough if the current branch is feature.
Finally, remember that order matters! Doing git diff feature...master will show changes that are on master not on feature.
I wish more git commands would support that syntax, but I don't think they do. And some even have different semantics for .....
How to write a scalable Tcp/Ip based server
...n time, and we don't need to use thread synchronization. However, if you reorder this to call the next receive immediately after pulling the data, which might be a little faster, you will need to make sure you properly synchronize the threads.
Also, I hacked out alot of my code, but left the essen...
How to rollback a specific migration?
...e error in the original post)
rake db:migrate VERSION=20100905201547
In order to rollback ONLY ONE specific migration (OUT OF ORDER) use:
rake db:migrate:down VERSION=20100905201547
Note that this will NOT rollback any interceding migrations -- only the one listed. If that is not what you inte...