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Unbound classpath container in Eclipse
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IF would have done more, but i can vote up only once. saved my whole day
– Shadow
Jan 14 '15 at 7:04
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How to set layout_gravity programmatically?
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How to replace four spaces with a tab in Sublime Text 2?
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Format Date time in AngularJS
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Yeah, more reliable and efficient.. Thanks for sharing
– azhar_SE_nextbridge
Feb 26 '16 at 22:11
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updating table rows in postgres using subquery
..._id=subquery.address_id;
This syntax is not standard SQL, but it is much more convenient for this type of query than standard SQL. I believe Oracle (at least) accepts something similar.
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Linq to Entities join vs groupjoin
... say a list of lists. In many cases the select with the parent included is more useful.
Some use cases
1. Producing a flat outer join.
As said, the statement ...
from p in Parent
join c in Child on p.Id equals c.Id into g
select new { Parent = p, Children = g }
... produces a list of parents with c...
What is the difference between CascadeType.REMOVE and orphanRemoval in JPA?
...dress;
:
}
Orphan Removal
JPA 2 supports an additional and more aggressive remove cascading mode
which can be specified using the orphanRemoval element of the
@OneToOne and @OneToMany annotations:
@Entity
class Employee {
:
@OneToOne(orphanRemoval=true)
private Addr...
Which is generally best to use — StringComparison.OrdinalIgnoreCase or StringComparison.InvariantCul
...de equivalence rules are complicated, which means using method 1) or 2) is more expensive than OrdinalIgnoreCase. The fact that OrdinalIgnoreCase does not perform any special unicode normalization, means that some strings that render in the same way on a computer screen, will not be considered ident...
eclipse won't start - no java virtual machine was found
... eclipse.ini file make sure you are
pointing -vm to your jdk installation. More on this here. Make sure to add -vm before the -vmargs section.
Pass in the vm flag from command line. http://wiki.eclipse.org/FAQ_How_do_I_run_Eclipse%3F#Find_the_JVM
Note : Eclipse DOES NOT consult the JAVA_HOME envir...