大约有 47,000 项符合查询结果(耗时:0.0647秒) [XML]
MySQL: Set user variable from result of query
...ut you need to move the variable assignment into the query:
SET @user := 123456;
SELECT @group := `group` FROM user WHERE user = @user;
SELECT * FROM user WHERE `group` = @group;
Test case:
CREATE TABLE user (`user` int, `group` int);
INSERT INTO user VALUES (123456, 5);
INSERT INTO user VALUES ...
XPath to select multiple tags
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210
One correct answer is:
/a/b/*[self::c or self::d or self::e]
Do note that this
a/b/*[local...
How to center horizontally div inside parent div
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answered Dec 23 '09 at 11:39
Mark EmblingMark Embling
12k55 gold badges3636 silver badges5252 bronze badges
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How to make Google Chrome JavaScript console persistent?
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hjing
4,47211 gold badge2020 silver badges2828 bronze badges
answered Oct 5 '11 at 13:10
Nick CoxNick Cox
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How to disable/enable the sleep mode programmatically in iOS?
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edited Dec 1 '17 at 23:48
zimmerrol
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answer...
Difference between two DateTimes C#?
...d a function that can return the difference between the below two dates as 24.
6 Answers
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What is meant by Ems? (Android TextView)
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edited Jun 24 '12 at 14:05
answered Jun 24 '12 at 13:36
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How to use mod operator in bash?
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241
Try the following:
for i in {1..600}; do echo wget http://example.com/search/link$(($i % 5))...
What is the difference between packaged_task and async
...~future blocks:
std::async(do_work1); // ~future blocks
std::async(do_work2); // ~future blocks
/* output: (assuming that do_work* log their progress)
do_work1() started;
do_work1() stopped;
do_work2() started;
do_work2() stopped;
*/
So if you want real asynchronous you need to k...
Applying a git post-commit hook to all current and future repos
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200
I want to add this hook to apply to all current (and future) git repositories I am working ...