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Javascript how to split newline
... The last place where they were widely used was in ancient Mac OS versions from nearly 20 years ago.
– Ilmari Karonen
Sep 25 '19 at 21:36
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django models selecting single field
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thanks for the answer, what if I want to select only 1 or more fields (not all)?
– zentenk
Sep 21 '11 at 16:42
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Bash syntax error: unexpected end of file
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I had this in a script shared with me from a zsh user. The former does work in zsh but not in sh nor bash. Wish I was 4 people so I could give this 4 upvotes
– Davos
Jan 4 '19 at 0:41
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Typing Enter/Return key using Python and Selenium?
...for Java, for other languages it is maybe a different, for example python: from selenium.webdriver.common.keys import Keys
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What is the difference between Non-Repeatable Read and Phantom Read?
...e query have the same value before and after, but different rows are being selected (because B has deleted or inserted some). Example: select sum(x) from table; will return a different result even if none of the affected rows themselves have been updated, if rows have been added or deleted.
In ...
MySQL: Transactions vs Locking Tables
...ransactions vs locking tables to ensure database integrity and make sure a SELECT and UPDATE remain in sync and no other connection interferes with it. I need to:
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What is a good reason to use SQL views?
...one extra column active.
If your system(s) have gazillion queries that do SELECT whatever FROM T_OLD WHERE whatever, you have two choices for the roll-out:
1) Cold Turkey - Change the DB, and at the same time, change, test and release numerous pieces of code which contained said query. VERY hard t...
How to create json by JavaScript for loop?
I have array of select tag.
5 Answers
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Difference between java.io.PrintWriter and java.io.BufferedWriter?
...anipulate text files correctly.
The BufferedReader permits to read a text from file, with bytes converted in characters. It allows to read line by line.
There is no PrintReader, you have to choose another Reader implementation according to the format of your input.
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MySQL/SQL: Group by date only on a Datetime column
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Cast the datetime to a date, then GROUP BY using this syntax:
SELECT SUM(foo), DATE(mydate) FROM a_table GROUP BY DATE(a_table.mydate);
Or you can GROUP BY the alias as @orlandu63 suggested:
SELECT SUM(foo), DATE(mydate) DateOnly FROM a_table GROUP BY DateOnly;
Though I don't think...