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SQL Add foreign key to existing column
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MySQL / SQL Server / Oracle / MS Access:
ALTER TABLE Orders
ADD FOREIGN KEY (P_Id)
REFERENCES Persons(P_Id)
To allow naming of a FOREIGN KEY constraint, and for defining a FOREIGN KEY constraint on multiple columns, use th...
Hibernate: hbm2ddl.auto=update in production?
...tabase schema.
The awesome thing is that I can take a totally blank slate mysql database on my laptop, fire up the app, and right away the schema is set up for me. It also makes it easy to test schema changes by applying these to a local-dev or staging db first.
The easiest way to get started wit...
Build tree array from flat array in javascript
...que id,
parentId : the id of the parent node (which is 0 if the node is a root of the tree)
level : the level of depth in the tree
...
How do I start PowerShell from Windows Explorer?
...er.
HKCR\Drive\shell - This is the context menu for the drive icons in the root of Windows Explorer.
For each of these registry keys, you can add a subkey that will add an "Open PowerShell window here" command to the context menu, just as you have an "Open command window here" context menu.
Here ...
Android Studio: how to attach Android SDK sources?
...@
</javadocPath>
<sourcePath>
<root type="composite">
- <root type="simple" url="file:///Applications/Android Studio.app/sdk/sources/android-19" />
+ <root type="simple" url="file:///Users/tehdawgz/dev/android-sdk/sources/...
Increasing client_max_body_size in Nginx conf on AWS Elastic Beanstalk
... "/etc/nginx/conf.d/proxy.conf" :
mode: "000755"
owner: root
group: root
content: |
client_max_body_size 20M;
This generates a proxy.conf file inside of the /etc/nginx/conf.d directory. The proxy.conf file simply contains the one liner client_max_body_...
Split value from one field to two
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Unfortunately MySQL does not feature a split string function. However you can create a user defined function for this, such as the one described in the following article:
MySQL Split String Function by Federico Cargnelutti
With that fu...
Run/install/debug Android applications over Wi-Fi?
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See forum post Any way to view Android screen remotely without root? - Post #9.
Connect the device via USB and make sure debugging is working;
adb tcpip 5555. This makes the device to start listening for connections on port 5555;
Look up the device IP address with adb shell netcfg or a...
How to implement a custom AlertDialog View
...w to inflating views). Using builder.setView(inflater.inflate(R.id.dialog, ROOT_VIEWGROUP[, ATTACH_TO_ROOT])), the docs say the root viewgroup is optional. Should this be used in this case? If so ... still have to figure out how to get a reference to the AlertDialog...
– stormi...
Transport endpoint is not connected
...and through a wireless connection.
Bash command:
el@defiant /mnt $ sshfs root@192.168.13.102:/root -p 22 /mnt/ev3
fuse: bad mount point `/mnt/ev3': Transport endpoint is not connected
This is remedied with the following command and trying again:
fusermount -u /mnt/ev3
These additional sshfs o...