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(
What is the difference between JOIN and INNER JOIN?
The fact that when it says INNER JOIN, you can be sure of what it does and that it's supposed to be just that, whereas a plain JOIN will leave you, or someone else, wondering what the …
What is a SQL JOIN, and what are the different types?
This JOIN combines LEFT OUTER JOIN and RIGHT OUTER JOIN. It returns rows from either table when the conditions are met and returns NULL value when there is no match. In other …
What's the difference between INNER JOIN, LEFT JOIN, RIGHT …
INNER JOIN gets all records that are common between both tables based on the supplied ON clause. LEFT JOIN gets all records from the LEFT linked and the related record from the right …
SQL JOIN where to place the WHERE condition? - Stack Overflow
If a filter enters in a JOIN condition functionally (i.e. it is an actual join condition, not just a filter), it must appear in the ON clause of that join. Worth noting: If you place it in the WHERE clause …
What is the difference between INNER JOIN and OUTER JOIN?
Sep 2, 2008 · Inner join is a join that combined tables based on matching tuples, whereas outer join is a join that combined table based on both matched and unmatched tuple. Inner join …
CROSS JOIN vs INNER JOIN in SQL - Stack Overflow
Figure 1 is useful and correct as the first of 4 colourings of intersecting circle Venn diagrams for: (INNER) JOIN vs LEFT, RIGHT & FULL (OUTER) JOIN but not vs CROSS JOIN. Intersection …
sql - Using AND in an INNER JOIN - Stack Overflow
You can join tables on specific columns, I think you got that far. With the AND in the inner join you can specify it even more. Join the tables on the columns, where A1.Column = 'TASK' and …
Conditional JOIN Statement SQL Server - Stack Overflow
Oct 18, 2016 · Is it possible to do the following: IF [a] = 1234 THEN JOIN ON TableA ELSE JOIN ON TableB If so, what is the correct syntax?
LEFT JOIN vs. LEFT OUTER JOIN in SQL Server - Stack Overflow
Jan 2, 2009 · Left Join and Left Outer Join are one and the same. The former is the shorthand for the latter. The same can be said about the Right Join and Right Outer Join relationship. The …