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Foreign Key naming scheme
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The standard convention in SQL Server is:
FK_ForeignKeyTable_PrimaryKeyTable
So, for example, the key between notes and tasks would be:
FK_note_task
And the key between tasks and users would be:
FK_task_user
This gives you an 'at a glance' vie...
node.js database [closed]
...m looking for a database to pair with a node.js app. I'm assuming a json/nosql db would be preferable to a relational DB [I can do without any json/sql impedance mismatch]. I'm considering:
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DbArithmeticExpression arguments must have a numeric common type
...od accepts Nullable<DateTime>.
Entity Framwork core (when used with Sql Server, maybe other db providers) supports the DateTime AddXxx functions (like AddHours). They're translated into DATEADD in SQL.
*EntityFunctions prior to Entity Framework version 6.
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Good reasons NOT to use a relational database?
...l databases? In my opinion, most applications rarely use the full power of SQL--it would be interesting to see how to build an SQL-free application.
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String concatenation does not work in SQLite
I am trying to execute a SQlite replace function, but use another field in the function.
4 Answers
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Can I return the 'id' field after a LINQ insert?
When I enter an object into the DB with Linq-to-SQL can I get the id that I just inserted without making another db call? I am assuming this is pretty easy, I just don't know how.
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WITH CHECK ADD CONSTRAINT followed by CHECK CONSTRAINT vs. ADD CONSTRAINT
I'm looking at the AdventureWorks sample database for SQL Server 2008, and I see in their creation scripts that they tend to use the following:
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Create unique constraint with null columns
...otal on top).
Aside: I advise not to use mixed case identifiers in PostgreSQL.
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Computed / calculated / virtual / derived columns in PostgreSQL
Does PostgreSQL support computed / calculated columns, like MS SQL Server? I can't find anything in the docs, but as this feature is included in many other DBMSs I thought I might be missing something.
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VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
...cument::OnNewDocument()首先调用DeleteContents()删除原文档内容，使用m_strPathName.Empty()
清除当前文档路径，SetModifiedFlag(FALSE)。
2.ID_FILE_OPEN
CWinApp::OnFileOpen调用CDocManager::OnFileOpen。
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CDocManager::OnFileOpen首先显示文件打开对...