大约有 40,000 项符合查询结果(耗时:0.0257秒) [XML]

https://stackoverflow.com/ques... 

Problem with converting int to string in Linq to entities

...ode ends up looking like this: var items = from c in contacts select new ListItem { Value = SqlFunctions.StringConvert((double)c.ContactId).Trim(), Text = c.Name }; ...
https://stackoverflow.com/ques... 

Set cache-control for entire S3 bucket automatically (using bucket policies?)

...it can take some time. Log in to AWS Management Console Go into S3 bucket Select all files by route Choose "More" from the menu Select "Change metadata" In the "Key" field, select "Cache-Control" from the drop down menu max-age=604800Enter (7 days) for Value Press "Save" button (thanks to @biplob ...
https://stackoverflow.com/ques... 

SQL Server: Difference between PARTITION BY and GROUP BY

...y're used in different places. group by modifies the entire query, like: select customerId, count(*) as orderCount from Orders group by customerId But partition by just works on a window function, like row_number: select row_number() over (partition by customerId order by orderId) as OrderN...
https://stackoverflow.com/ques... 

How can I get enum possible values in a MySQL database?

... This solution works on codeigniter github.com/thiswolf/codeigniter-enum-select-boxes – You Know Nothing Jon Snow Jul 7 '13 at 16:28 3 ...
https://stackoverflow.com/ques... 

git visual diff between branches

...rst click on the tip of branch1. Now right-click on the tip of branch2 and select Diff this->selected. share | improve this answer | follow | ...
https://stackoverflow.com/ques... 

Rebuild or regenerate 'ic_launcher.png' from images in Android Studio

...s a dialog where the app\src\main\res Directory Structure is automatically selected (the right choice) Clicking on the OK button, AS opens the Asset Studio dialog where you can find all the tools and options we had on the past Eclipse ADT This can be done absolutely in any moments after creation o...
https://stackoverflow.com/ques... 

Using LIMIT within GROUP BY to get N results per group?

...to get all years into a single column, grouped by id and ordered by rate: SELECT id, GROUP_CONCAT(year ORDER BY rate DESC) grouped_year FROM yourtable GROUP BY id Result: ----------------------------------------------------------- | ID | GROUPED_YEAR |...
https://stackoverflow.com/ques... 

An explicit value for the identity column in table can only be specified when a column list is used

...tead of SET IDENTITY_INSERT archive_table ON; INSERT INTO archive_table SELECT * FROM source_table; SET IDENTITY_INSERT archive_table OFF; you need to write SET IDENTITY_INSERT archive_table ON; INSERT INTO archive_table (field1, field2, ...) SELECT field1, field2, ... FROM source_table;...
https://stackoverflow.com/ques... 

SQL to find the number of distinct values in a column

I can select all the distinct values in a column in the following ways: 11 Answers 11 ...
https://stackoverflow.com/ques... 

SQL query for finding records where count > 1

...ers that have more than one payment per day with the same account number SELECT user_id , COUNT(*) count FROM PAYMENT GROUP BY account, user_id , date Having COUNT(*) > 1 Update If you want to only include those that have a distinct ZIP you can get a distinct set first and then perfor...