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App Inventor 2 视频播放器教程 - VideoPlayer组件与WebView嵌入播放 · App Inventor 2 中文网
...办？
Q2：视频播放时出现黑屏或无法播放？
Q3：如何实现视频循环播放？
Q4：如何获取视频播放进度？
Q5：播放 YouTube 视频可以吗？
Q6：视频画面被拉伸/压缩怎么办？
Q7：iOS 上 VideoPlayer 有什么不同？...
What is maximum query size for mysql?
What is maximum query size for mysql? Some times the server stops working when I fire a too long query.
2 Answers
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How can I search (case-insensitive) in a column using LIKE wildcard?
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Friendly reminder that this is a mysql answer. If you're using PostgreSQL, ILike is the solution to the above question.
– Steve
Sep 6 '13 at 5:57
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从Code Review 谈如何做技术 - 更多技术 - 清泛网 - 专注C/C++及内核技术
从Code Review 谈如何做技术这两天，在微博上表达了一下Code Review的重要性。因为翻看了阿里内部的Review Board上的记录，从上面发现Code Review做得好的是一些比...这两天，在微博上表达了一下Code Review的重要性。因为翻看了阿里内部...
MySQL: How to copy rows, but change a few fields?
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MySQL supports the TEMPORARY keyword to create temporary tables. Usage of CREATE TEMPORARY TABLE will automagically drop the table when the session (a serie of SQL queries) is finished. Dropping the table wouldn't be necessar...
把数据保存成 CSV 文件并分享出去 · App Inventor 2 中文网
...「已有 1 笔」「已有 2 笔」「已有 3 笔」。在伴侣里点「重置连接」重新连上，标签仍然显示 3 笔，说明存住了。
实验二：导出成 CSV 文件
先拼出表头行，再把全部账目接在后面，交给「列表转换为CSV表」变...
PostgreSQL Autoincrement
I'm switching from MySQL to PostgreSQL and was wondering how I can do autoincrement values. I saw in the PostgreSQL docs a datatype "serial", but I get syntax errors when using it (in v8.0).
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You can't specify target table for update in FROM clause
I have a simple mysql table:
11 Answers
11
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Reorder / reset auto increment primary key
I have a MySQL table with an auto increment primary key. I deleted some rows in the middle of the table. Now I have, for example, something like this in the ID column: 12, 13, 14, 19, 20. I deleted the 15, 16, 17 and 18 rows.
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mysql command for showing current configuration variables
Can not find a command that displays the current configuration of mysql from within the database.
3 Answers
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