What exactly does the .join () method do? - Stack Overflow
I'm pretty new to Python and am completely confused by .join() which I have read is the preferred method for concatenating strings. I tried: strid = repr(595) print array.array('c', random.sample(
Using .join() in Python - Stack Overflow
Dec 7, 2012 · a = ['hello1', 'hello2', 'hello3'] ','.join(a) I would like to have 'and' instead of a comma before the last element of the list. So I would get: hello 1, hello 2 and hello 3. instead of....
What is a SQL JOIN, and what are the different types?
Note that a JOIN without any other JOIN keywords (like INNER, OUTER, LEFT, etc) is an INNER JOIN. In other words, JOIN is a Syntactic sugar for INNER JOIN (see: Difference between …
LEFT JOIN vs. LEFT OUTER JOIN in SQL Server - Stack Overflow
Jan 2, 2009 · LEFT OUTER JOIN - fetches data if present in the left table. RIGHT OUTER JOIN - fetches data if present in the right table. FULL OUTER JOIN - fetches data if present in either …
sql - JOIN two SELECT statement results - Stack Overflow
Currently achieving this using the two select statement method with a LEFT JOIN (as opposed to the suggested INNER JOIN, which works but doesn't show persons with no late tasks because …
SQL JOIN: what is the difference between WHERE clause and ON …
The SQL JOIN clause allows you to associate rows that belong to different tables. For instance, a CROSS JOIN will create a Cartesian Product containing all possible combinations of rows …
SQL Server Left Join With 'Or' Operator - Stack Overflow
Nov 1, 2013 · Here is what I did in the end, which got the execution time down from 52 secs to 4 secs. SELECT * FROM ( SELECT tpl.*, a.MidParentAId as 'MidParentId', 1 as 'IsMidParentA' …
What is the difference between JOIN and UNION? - Stack Overflow
May 25, 2009 · The SQL JOIN clause is used to combine records from two or more tables in a database. A JOIN is a means for combining fields from two tables by using values common to …
What's the difference between INNER JOIN, LEFT JOIN, RIGHT …
An SQL JOIN clause is used to combine rows from two or more tables, based on a common field between them. There are different types of joins available in SQL: INNER JOIN: returns rows …
Python 3 string.join() equivalent? - Stack Overflow
Dec 29, 2011 · In most cases you want to use your pythonic '.'.join() approach, but there are legitimate, pythonic uses for str.join() (formerly string.join()) too. For example, you sometimes …