大约有 30,000 项符合查询结果（耗时：0.0401秒） [XML]
Exit single-user mode
...ions to database 'my_db'.
Kill all the connections by doing KILL { session id } where session id is the SPID listed by sp_who2.
Third, open a new query window.
Execute the following code.
-- Start in master
USE MASTER;
-- Add users
ALTER DATABASE [my_db] SET MULTI_USER
GO
See my blog article o...
How to draw rounded rectangle in Android UI?
I need to draw a rounded rectangle in the Android UI. Having the same rounded rectangle for TextView and EditText would also be helpful.
...
Android Debug Bridge (adb) device - no permissions [duplicate]
...s to be more user friendly and is lesser security hole then running entire IDE with super user privileges. Mind this is still only a workaround of the problem. System root usage should be minimalized only to administrative tasks, and “adb” was designed to work with normal user account without SU...
MySQL order by before group by
...desc
If you have the following sample data:
CREATE TABLE wp_posts
(`id` int, `title` varchar(6), `post_date` datetime, `post_author` varchar(3))
;
INSERT INTO wp_posts
(`id`, `title`, `post_date`, `post_author`)
VALUES
(1, 'Title1', '2013-01-01 00:00:00', 'Jim'),
(2, 'Title2', '2...
How to capture Curl output to a file?
...maybe I need to clarify - the doc with all my URL's in the format about is called myfile.txt so I do curl -K myfile.txt and it runs though each one but I don't get the output into any file.
– Tony
Dec 6 '12 at 0:48
...
How does HTTP file upload work?
...
How does it send the file internally?
The format is called multipart/form-data, as asked at: What does enctype='multipart/form-data' mean?
I'm going to:
add some more HTML5 references
explain why he is right with a form submit example
HTML5 references
There are three pos...
How to drop a table if it exists?
...le does not exist).
Instead, for a permanent table you can use
IF OBJECT_ID('dbo.Scores', 'U') IS NOT NULL
DROP TABLE dbo.Scores;
Or, for a temporary table you can use
IF OBJECT_ID('tempdb.dbo.#T', 'U') IS NOT NULL
DROP TABLE #T;
SQL Server 2016+ has a better way, using DROP TABLE IF E...
Canvas width and height in HTML5
Is it possible to fix the width and height of an HTML5 canvas element?
4 Answers
4
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Ruby combining an array into one string
...n array.c the first thing Ruby does is checking for a string type and then calling the join method. Also: pry with show-source rocks! Try for yourself: $ Array.instance_methods.* ($ is shorthand for show-source)
– okket
Mar 16 '14 at 0:17
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WHERE vs HAVING
...level aliases in GROUP BY, ORDER BY and HAVING.
And are there any downsides instead of doing "WHERE 1" (writing the whole definition instead of a column name)
If your calculated expression does not contain any aggregates, putting it into the WHERE clause will most probably be more efficient.
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