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Removing multiple files from a Git repo that have already been deleted from disk
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2310
For Git 1.x
$ git add -u
This tells git to automatically stage tracked files -- including del...
Error: could not find function … in R
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10 Answers
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insert a NOT NULL column to an existing table
...lue for your column:
ALTER TABLE MY_TABLE ADD STAGE INT NOT NULL DEFAULT '0'
UPD: Please note that answer above contains GO which is a must when you run this code on Microsoft SQL server. If you want to perform the same operation on Oracle or MySQL you need to use semicolon ; like that:
ALTER ...
How to design a product table for many kinds of product where each product has many parameters
...is overkill. Class Table Inheritance would be my first choice.
Update 2019: The more I see people using JSON as a solution for the "many custom attributes" problem, the less I like that solution. It makes queries too complex, even when using special JSON functions to support them. It takes a lot...
How to change ProgressBar's progress indicator color in Android
...t="wrap_content"
android:indeterminate="false"
android:maxHeight="10dip"
android:minHeight="10dip"
android:progress="50"
android:progressDrawable="@drawable/greenprogress" />
Then create a new drawable with something similar to the following (In this case greenprogress.xml):...
Can you have if-then-else logic in SQL? [duplicate]
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You can make the following sql query
IF ((SELECT COUNT(*) FROM table1 WHERE project = 1) > ...
CSS background image to fit width, height should auto-scale in proportion
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Docker how to change repository name or rename image?
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1085
docker image tag server:latest myname/server:latest
or
docker image tag d583c3ac45fd myname...
Why does git perform fast-forward merges by default?
...itched to branch 'develop'
$ git merge --no-ff myfeature
Updating ea1b82a..05e9557
(Summary of changes)
$ git branch -d myfeature
Deleted branch myfeature (was 05e9557).
$ git push origin develop
The --no-ff flag causes the merge to always create a new commit object, even if the merge could be ...
Why does my application spend 24% of its life doing a null check?
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The tree is massive
By far the most expensive thing a processor ever does is not executing ...