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MYSQL import data from csv using LOAD DATA INFILE
...AL keyword hold security risks and as of MySQL 8.0 the LOCAL capability is set to False by default. You might see the error:
ERROR 1148: The used command is not allowed with this MySQL version
You can overwrite it by following the instructions in the docs.
Beware that such overwrite does not s...
Check if database exists in PostgreSQL using shell
...p -w matches alphanumeric, digits and the underscore, which is exactly the set of characters allowed in unquoted database names in postgresql (hyphens are not legal in unquoted identifiers). If you are using other characters, grep -w won't work for you.
The exit status of this whole pipeline will...
What are Java command line options to set to allow JVM to be remotely debugged?
I know there's some JAVA_OPTS to set to remotely debug a Java program.
8 Answers
8
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Paste multiple columns together
I have a bunch of columns in a dataframe which I want to paste together (seperated by "-") as follows:
10 Answers
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How to get diff working like git-diff?
I like the output formatting of git diff . The color and the + / - representation of changes between lines is easier to read than GNU diff.
...
Stashing only staged changes in git - is it possible?
...ime, and have several unstaged changes. I'd like to be able to stage these files individually, create my .patch files, and stash them away until the code is approved. This way, when it's approved I can stash my entire (current) session, pop that bug and push the code.
...
Sending HTTP POST Request In Java
...2345"));
params.add(new BasicNameValuePair("param-2", "Hello!"));
httppost.setEntity(new UrlEncodedFormEntity(params, "UTF-8"));
//Execute and get the response.
HttpResponse response = httpclient.execute(httppost);
HttpEntity entity = response.getEntity();
if (entity != null) {
try (InputStrea...
In Vim, I'd like to go back a word. The opposite of `w`
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T-SQL: Opposite to string concatenation - how to split string into multiple records [duplicate]
...declare @nextString nvarchar(4000)
declare @pos int, @nextPos int
set @nextString = ''
set @string = @string + @delimiter
set @pos = charindex(@delimiter, @string)
set @nextPos = 1
while (@pos <> 0)
begin
set @nextString = substring(@string, 1, @pos - 1)
...
What are the differences between segment trees, interval trees, binary indexed trees and range trees
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