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MLKitFaceDetector 拓展：离线人脸检测（表情 / 睁闭眼 / 头部姿态） · Ap...
...否检测面部轮廓（脸、眉、眼、唇的密集点集）。
最耗性能的选项，且只对画面里最显眼的那张脸有效。
Classifications
是否给出微笑概率和睁眼概率。
要用 smilingProbability / leftEyeOpenProbability / rightEyeOpenProbability 就必须打开这...
Google Tag Manager 入门指南 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...后加。
基本概念：
Container：
也就是容器了，容器里会包括相关的代码和判断加载逻辑，可以从：Container Settings里查看复制加载脚本。
Tag：
代码段，如一段Google Analytics代码，一段百度统计代码，tag归属于当前的Container，tag...
SQL multiple column ordering
I am trying to sort by multiple columns in SQL, and in different directions. column1 would be sorted descending, and column2 ascending.
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Do htmlspecialchars and mysql_real_escape_string keep my PHP code safe from injection?
...database queries, always try and use prepared parameterised queries. The mysqli and PDO libraries support this. This is infinitely safer than using escaping functions such as mysql_real_escape_string.
Yes, mysql_real_escape_string is effectively just a string escaping function. It is not a magic bu...
How to detect if a stored procedure already exists
...f you drop it you know you have to re-add the permissions. If you ran this sql you would not know whether the sproc had the correct permissions or not as you wouldn't know if you had created it or altered it.
– Liazy
Jan 25 '13 at 12:03
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Profiling Django
...I didn't realize how much slower the Debug Toolbar made things process. My sql queries were small (30ms) but cpu time was very high (800ms). Another page i was tuning had sql times of 300ms, and cpu time of 8000ms - so i kept trying to find the source of the problem. Turning Django Toolbar off sped ...
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phon
What's the longest possible worldwide phone number I should consider in SQL varchar(length) for phone.
5 Answers
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Multiple INSERT statements vs. single INSERT with multiple VALUES
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Addition: SQL Server 2012 shows some improved performance in this area but doesn't seem to tackle the specific issues noted below. This
should apparently be fixed in the next major version after
SQL Server 2012!
Your plan shows t...
ALTER DATABASE failed because a lock could not be placed on database
...t the problem has occurred elsewhere.
http://www.geakeit.co.uk/2010/12/11/sql-take-offline-fails-alter-database-failed-because-a-lock-could-not-error-5061/
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SCOPE_IDENTITY() for GUIDs?
...s an equivalent of SCOPE_IDENTITY() when using GUIDs as a primary key in SQL Server?
5 Answers
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