Top "Concat" questions

Refers to the joining of two or more elements into a single element.

How to concatenate string variables in Bash

In PHP, strings are concatenated together as follows: $foo = "Hello"; $foo .= " World"; Here, $foo becomes "Hello World". How is this …

bash shell syntax concat string-concatenation
Which is the preferred way to concatenate a string in Python?

Since Python's string can't be changed, I was wondering how to concatenate a string more efficiently? I can write like …

python string python-3.x concat
Can I concatenate multiple MySQL rows into one field?

Using MySQL, I can do something like: SELECT hobbies FROM peoples_hobbies WHERE person_id = 5; My Output: shopping fishing coding …

mysql sql concat group-concat
SQL UPDATE all values in a field with appended string CONCAT not working

Here is what I want to do: current table: +----+-------------+ | id | data | +----+-------------+ | 1 | max | | 2 | linda | | 3 | sam | | 4 | henry | +----+…

sql mysql concatenation concat
MySQL select with CONCAT condition

I'm trying to compile this in my mind.. i have a table with firstname and lastname fields and i have …

mysql select conditional-statements where concat
How to use GROUP_CONCAT in a CONCAT in MySQL

If I have a table with the following data in MySQL: id Name Value 1 A 4 1 A 5 1 B 8 2 C 9 how do …

mysql concat group-concat
How do I concatenate strings in Swift?

How to concatenate string in Swift? In Objective-C we do like NSString *string = @"Swift"; NSString *resultStr = [string stringByAppendingString:@" is a …

string swift concat string-concatenation
Merge two dataframes by index

I have the following dataframes: > df1 id begin conditional confidence discoveryTechnique 0 278 56 false 0.0 1 1 421 18 false 0.0 1 > df2 concept 0 A 1 B How …

python pandas dataframe merge concat
String concatenation in MySQL

I am using MySQL and MySQL Workbench 5.2 CE. When I try to concatenate 2 columns, last_name and first_name, it …

mysql mysql-workbench concat
Concatenate a list of pandas dataframes together

I have a list of Pandas dataframes that I would like to combine into one Pandas dataframe. I am using …

python pandas dataframe concat