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多媒体组件 · App Inventor 2 中文网
...帧。
开始()
播放 源文件 指定的媒体。
停止()
重置为视频开始位置，如果视频正在播放则暂停。
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那些我印象深刻的建议和教诲 - 杂谈 - 清泛网 - 专注C/C++及内核技术
...负有心人”和“蠢”之间可能连窗户纸都没有，只看个人如何面对了。
多用Google吧
我工作的第一天，项目经理把我叫去说：给你们讲讲JUnit, SVN，Ant, JBuilder的用法，明天开始用。这四样东西我以前都没有接触过，第一反应就是...
MySQL skip first 10 results
Is there a way in MySQL to have the first 10 result from a SELECT query skipped?
I'd like it to work something like LIMIT.
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Doctrine - How to print out the real sql, not just the prepared statement?
...You can check the query executed by your app if you log all the queries in mysql:
http://dev.mysql.com/doc/refman/5.1/en/query-log.html
there will be more queries not only the one that you are looking for but you can grep for it.
but usually ->getSql(); works
Edit:
to view all the mysql quer...
MongoDB or CouchDB - fit for production? [closed]
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We are running CouchDB as a replacemant for MySQL for our shops (70.0000 items/shop, a total of 4 million attributes of all items, cross connections between items).
Our goals were:
Easy replication from a master-db to several clients with different documents.
Fast p...
Using DISTINCT and COUNT together in a MySQL Query
Is something like this possible:
7 Answers
7
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What is the difference between single and double quotes in SQL?
...ct_id
SELECT PRODUCT.id 'product_id'
Either works in Oracle, SQL Server, MySQL… but I know some have said that the TOAD IDE seems to give some grief when using the single quotes approach.
You do have to use single quotes when the column alias includes a space character, e.g., product id, but it...
MySQL, better to insert NULL or empty string?
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Better to Insert NULL for consistency in your database in MySQL. Foreign keys can be stored as NULL but NOT as empty strings.
You will have issues with an empty string in the constraints.
You may have to insert a fake record with a unique empty string to satisfy a Foreign Key cons...
mysql update column with value from another table
I have two tables, both looking like
8 Answers
8
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How to get ER model of database from server with Workbench
...y to get an ER model of a database from the server that is connected to my MySQL Workbench?
4 Answers
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