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How can I access the MySQL command line with XAMPP for Windows?
... mysql), else it would not see mysql.exe (yes, I had done the cd command already).
– dotNET
Nov 29 '19 at 18:46
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How do I create an immutable Class?
...king on creating an immutable class.
I have marked all the properties as read-only.
6 Answers
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Split string into an array in Bash
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IFS=', ' read -r -a array <<< "$string"
Note that the characters in $IFS are treated individually as separators so that in this case fields may be separated by either a comma or a space rather than the sequence of the two c...
What is PostgreSQL explain telling me exactly?
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(When you're using PgAdmin, you can point your mouse at a component to read the cost details.)
The cost is represented as a tuple, e.g. the cost of the LIMIT is cost=0.00..3.39 and the cost of sequentially scanning post is cost=0.00..15629.12. The first number in the tuple is the startup cost a...
npm not working - “read ECONNRESET”
I'm having a problem with npm, I cant install anything. Here is the error messages:
26 Answers
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When and why are database joins expensive?
...e the rows are materialised.
Materialising the result involves bulk disk reads which are the most expensive aspect of the exercise by an order of magnitude. Performing a join, by contrast, logically requires retrieval of only the keys. In practice, not even the key values are fetched: the key hash...
Are global variables bad? [closed]
...these, it becomes increasingly hard to figure out which functions actually read and write these variables.
To understand how the application works, you pretty much have to take into account every function which modifies the global state. That can be done, but as the application grows it will get h...
android pick images from gallery
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Please don't forget to add runtime permissions for READ_EXTERNAL_STORAGE and WRITE_EXTERNAL_STORAGE for api level 23 and higher. Otherwise you may not get bitmap from gallery as not null. See stackoverflow.com/a/35285667/3341089
– oguzhan
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What is Domain Driven Design (DDD)? [closed]
...ep seeing DDD (Domain Driven Design) being used a lot in articles - I have read the Wikipedia entry about DDD but still can't figure out what it actually is and how I would go about implementing it in creating my sites?
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Switch on ranges of integers in JavaScript [duplicate]
...tements are useful because they provide code that is more concise and more readable. Your example requires more lines than are necessary, and the code is far less clear than the equivalent if-then-else structure. It's simply a case of the right structure for the job. Just because you were able to cr...