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What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...nd it tells if the parent is removed, all its related records in the child table should be removed.
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Performing Inserts and Updates with Dapper
...time you can do the following
val = "my value";
cnn.Execute("insert into Table(val) values (@val)", new {val});
cnn.Execute("update Table set val = @val where Id = @id", new {val, id = 1});
etcetera
See also my blog post: That annoying INSERT problem
Update
As pointed out in the comments, t...
What is the difference between a HashMap and a TreeMap? [duplicate]
...y works with Comparable objects, HashMap only works with objects with a suitable hashCode() implementation.
– Thilo
Mar 15 '10 at 1:29
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How can I clear the SQL Server query cache?
... (OPTIMIZE FOR UNKNOWN)
Then your query will be like this
select * from Table where Col = 'someval' OPTION (OPTIMIZE FOR UNKNOWN)
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Rotating x axis labels in R for barplot
...up and down. Here's an example with the mtcars data set:
x <- barplot(table(mtcars$cyl), xaxt="n")
labs <- paste(names(table(mtcars$cyl)), "cylinders")
text(cex=1, x=x-.25, y=-1.25, labs, xpd=TRUE, srt=45)
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LoadRunner中参数化技术详解 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...在VuGen中运行脚本时，该值为-1.
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DataFile/Table
可以在属性设置中编辑文件，添加内容，也可以从数据库中提取数据。
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UseDefinedFunction
从dll的简单函数中获取信息替代参数
【...
UITableViewCell Separator disappearing in iOS7
I have some strange issue with UITableView only in iOS 7.
37 Answers
37
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Best way to store time (hh:mm) in a database
I want to store times in a database table but only need to store the hours and minutes.
I know I could just use DATETIME and ignore the other components of the date, but what's the best way to do this without storing more info than I actually need?
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config.assets.compile=true in Rails production, why not?
...mpiled and fingerprinted to the public/assets. Sprockets returns a mapping table of the plain to fingerprinted filenames to Rails, and Rails writes this to the filesystem. The manifest file (YML in Rails 3 or JSON with a randomised name in Rails 4) is loaded into Memory by Rails at startup and cache...
How to link to part of the same document in Markdown?
I am writing a large Markdown document and would like to place a table of contents of sorts at the beginning that will provide links to various locations in the document. How can I do this?
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