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Declare variable in table valued function
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Split code over multiple lines in an R script
...ong string where whitespace/structure is important to preserve (example: a SQL query using RODBC) there is a two step solution.
1) Bring the text string in across multiple lines
long_string <- "this
is
a
long
string
with
whitespace"
2) R will introduce a bunch of \n characters. Strip those...
What is the easiest way to ignore a JPA field during persistence?
...em with @Transient to exclude them from SELECT, INSERT, UPDATE, and DELETE SQL statements.
So, for basic attributes, you need to use @Transient in order to exclude a given property from being persisted.
For more details about computed entity attributes, check out this article.
Association...
What can , and be used for?
...eceiver_MB._strID
Use viewParam
In Receiver, we want to use this param in sql query before the page render, so that we use preRenderView event. We are not going to use constructor because constructor will be invoked before viewParam is received
So that we add
Receiver.xhtml
<f:event listener="#...
Entity Framework Code First - two Foreign Keys from same table
... and GuestTeam scenario), in which case EF gets confused in generating the SQL. Solution is to add code to OnModelCreate as per the accepted answer as well as the two collections for both sides of the relationship.
– Steven Manuel
Jun 17 '16 at 2:54
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MySQL Select Query - Get only first 10 characters of a value
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Using the below line
SELECT LEFT(subject , 10) FROM tbl
MySQL Doc.
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How to get execution time in rails console?
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Should an Enum start with a 0 or a 1?
...abase or something similar). If you're worried abotu space, with the newer SQL server versions you can have a database compressed, which means 1000 occurences of "SomeEnumTextualValue" will use barely any more space. Of course this won't work for all projects - it's a trade off. I think the worry ab...
C语言结构体里的成员数组和指针 - c++1y / stl - 清泛IT社区，为创新赋能！
...为什么在VC++2012下编译你会得到一个警告：“arning C4200: 使用了非标准扩展 : 结构/联合中的零大小数组”。那么为什么gcc可以通过而连一个警告都没有？那是因为gcc 为了预先支持C99的这种玩法，所以，让“零长度数组”这种玩法...
Composite Key with EF 4.1 Code First
...body know whether setting composite primary key using fluent api works for SQL CE? It doesn't work for me (gives an error that 'EntityType ... has no key defined') and I'm not sure to create a new question or not.
– kasitan
Sep 5 '13 at 16:04
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