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Repository Pattern Step by Step Explanation [closed]
...objects, is safely contained in the repository.
Very often, you will find SQL queries scattered in the codebase and when you come to add a column to a table you have to search code files to try and find usages of a table. The impact of the change is far-reaching.
With the repository pattern, you w...
MLKitDocScanner 拓展：文档扫描（自动找边缘、纠正透视、导出 PDF） · Ap...
...”分享”方法 —— App Inventor 本来就有「分享」组件，用它的 分享文件 块即可。
重要限制：文档扫描界面由 Google Play 服务提供，ML Kit 没有离线版本。
因此设备必须装有 Google Play 服务，且首次使用需要联网下载扫描模块（...
Using a .php file to generate a MySQL dump
...he output to the PHP script -- no need for the PHP script to get the whole SQL dump as a string : you only need it written to a file, and this can be done by the command itself.
That external command will :
be a call to mysqldump, with the right parameters,
and redirect the output to a file.
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JPA or JDBC, how are they different?
...d for ORM
JDBC is a standard for connecting to a DB directly and running SQL against it - e.g SELECT * FROM USERS, etc. Data sets can be returned which you can handle in your app, and you can do all the usual things like INSERT, DELETE, run stored procedures, etc. It is one of the underlying tec...
Entity Framework with NOLOCK
... READ UNCOMMITTED;");
http://msdn.microsoft.com/en-us/library/aa259216(v=sql.80).aspx
With this technique, we were able to create a simple EF provider that creates the context for us and actually runs this command each time for all of our context so that we're always in "read uncommitted" by defa...
财务计算器拓展：复利计算、平均值、中位数、众数、方差计算 - App Invento...
...现值和投资回报率。它还使您能够进行基本的统计计算，包括计算平均值、中位数、众数、方差等。无论您是在创建个人财务应用程序还是数据分析工具，此扩展都是您不可或缺的得力助手。
FeaturesWith the Financial Calculator extens...
How do I restore a dump file from mysqldump?
I was given a MySQL database file that I need to restore as a database on my Windows Server 2008 machine.
17 Answers
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What is the difference between ExecuteScalar, ExecuteReader and ExecuteNonQuery?
..., SELECT col1, col2 from sometable).
ExecuteNonQuery is typically used for SQL statements without results (e.g., UPDATE, INSERT, etc.).
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How to combine two strings together in PHP?
...o one mentioned this but there is other possibility. I'm using it for huge sql queries. You can use .= operator :)
$string = "the color is ";
$string .= "red";
echo $string; // gives: the color is red
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How to perform better document version control on Excel files and SQL schema files
I am in charge of several Excel files and SQL schema files. How should I perform better document version control on these files?
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