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Difference between @OneToMany and @ElementCollection?
What is the difference between using a @OneToMany and @ElementCollection annotation since both work on the one-to-many relationship?
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How do I specify unique constraint for multiple columns in MySQL?
... For those people using MySQL workbench: go to the Indexes tab and select UNIQUE as your type. Give your index a name and check the appropriate columns under the section "Index Columns"
– Pakman
Jun 3 '13 at 20:42
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Illegal mix of collations MySQL Error
...ly refuses to change from 'ucs2_bin' so even tried changing all the tables and the connection collation to 'usc2_bin' but I still get the error "SQL Error (1267): Illegal mix of collations (utf8_general_ci,IMPLICIT) and (ucs2_bin,IMPLICIT) for operation '='".
– bikeman868
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Collections.emptyList() vs. new instance
...ses where you do want to modify the returned list, Collections.emptyList() and List.of() are thus not a good choices.
I'd say that returning an immutable list is perfectly fine (and even the preferred way) as long as the contract (documentation) does not explicitly state differently.
In addition...
How do I drop a foreign key constraint only if it exists in sql server?
...gn_keys
WHERE object_id = OBJECT_ID(N'dbo.FK_TableName_TableName2')
AND parent_object_id = OBJECT_ID(N'dbo.TableName')
)
ALTER TABLE [dbo.TableName] DROP CONSTRAINT [FK_TableName_TableName2]
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msbuild.exe staying open, locking files
...sbuild (.NET 4). I have a strange issue in that after a build is complete (and it doesn't seem to matter if it was a successful build or not), msbuild.exe stays open, and locks one of the files, which means every time TeamCity tries to clear its work directory, it fails, and can't continue.
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How can I wait till the Parallel.ForEach completes
I'm using TPL in my current project and using Parallel.Foreach to spin many threads. The Task class contains Wait() to wait till the task gets completed. Like that, how I can wait for the Parallel.ForEach to complete and then go into executing next statements?
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How to check if a value exists in a dictionary (python)
...t()
[0.32004380226135254, 0.31716084480285645, 0.3171098232269287]
EDIT: And in case you wonder why... the reason is that each of the above returns a different type of object, which may or may not be well suited for lookup operations:
>>> type(d.viewvalues())
<type 'dict_values'>
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Opening Vim help in a vertical split window
...er the window splits on the left/top or the right/bottom with topleft (to) and botright (bo). For example, to open help in the right window of a vertical split:
:vert bo help
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Can a project have multiple origins?
...ository. You can configure a second remote, push to/pull from that remote, and setup some branches to track branches from that remote instead of origin.
Try adding a remote called "github" instead:
$ git remote add github https://github.com/Company_Name/repository_name.git
# push master to github...