大约有 40,000 项符合查询结果（耗时：0.0391秒） [XML]
Creating stored procedure and SQLite?
..., Ruby etc). You can then use these custom functions as part of any SQLite select/update/insert/delete. I've done this in C# using DevArt's SQLite to implement password hashing.
share
|
improve thi...
jQuery checkbox event handling
...mall tip. You will get a performance boost by using input:checkbox in your selector instead of just :checkbox since the latter is translated to the universal selector *:checkbox.
– jimmystormig
Feb 1 '12 at 15:28
...
PostgreSQL delete with inner join
...ctprice
WHERE m_pricelist_version_id='1000020' AND
m_product_id IN (SELECT m_product_id
FROM m_product
WHERE upc = '7094');
share
|
improve t...
I want to copy table contained from one database and insert onto another database table
...as below.
CREATE TABLE db2.table LIKE db1.table;
INSERT INTO db2.table SELECT * FROM db1.table;
share
|
improve this answer
|
follow
|
...
How to add a new audio (not mixing) into a video using ffmpeg?
...:a -c:v copy -shortest output.mp4
The -map option allows you to manually select streams / tracks. See FFmpeg Wiki: Map for more info.
This example uses -c:v copy to stream copy (mux) the video. No re-encoding of the video occurs. Quality is preserved and the process is fast.
If your input audio f...
What Xcode keyboard shortcuts do you use regularly? [closed]
...
Uncommenting only does not work when your selection contains one or more lines that are not already commented.
– DarkByte
Jun 19 '14 at 8:03
a...
convert_tz returns null
...L's dev site) the command was unable to convert between timezones such as
SELECT CONVERT_TZ('2004-01-01 12:00:00','UTC','MET') AS time
It turns out that on OS X there are two files that cause problems: /usr/share/zoneinfo/Factory and /usr/share/zoneinfo/+VERSION.
The fix... temporarily moving t...
Android - Emulator in landscape mode, screen does not rotate
...
In my case the Skin option in AVD settings was the problem. When I selected "No skin", it worked.
share
|
improve this answer
|
follow
|
...
Why do people say there is modulo bias when using a random number generator?
...
Keep selecting a random is a good way to remove the bias.
Update
We could make the code fast if we search for an x in range divisible by n.
// Assumptions
// rand() in [0, RAND_MAX]
// n in (0, RAND_MAX]
int x;
// Keep searc...
ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: YES)
...hat I needed... but not everyone has version 5.5 of server. use dpkg --get-selections | grep sql to get your version
– Balmipour
Sep 10 '15 at 11:18
...