1. For INNER JOIN any condition can be in a WHERE instead of an ON as long as there is no intervening OUTER JOIN. 2. When moving a LEFT JOIN condition from an ON to a WHERE …

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 …

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 …

Jan 2, 2009 · Here's a list of equivalent syntaxes: A LEFT JOIN B A LEFT OUTER JOIN B A RIGHT JOIN B A RIGHT OUTER JOIN B A FULL JOIN B A FULL OUTER JOIN B A INNER …

Nov 1, 2013 · Instead of one join with OR it turned into three joins. With each condition in a seprate join and a final join to get that one matching row from either first or second join.

Theta-join is analogous to a special case of inner join where the on is a theta comparison on of a column from each. Some decades after Codd defined them some textbook (s) misdefined …

The question and solutions pertain specifically to INNER JOINs. If the join is a LEFT/RIGHT/FULL OUTER JOIN, then it is not a matter of preference or performance, but one of correct results. …

Feb 14, 2019 · CROSS APPLY instead INNER JOIN and OUTER APPLY instead LEFT JOIN (the same as LEFT OUTER JOIN).

This was an example, but the point is as Eric said in How can I do an UPDATE statement with JOIN in SQL Server?. You need to add an UPDATE statement at first with the full address of …

Do you really want to be able to join the tables if a value is null? Can't you just exclude the possible null values in the join predicate? I find it hard to grok that rows in two tables can be …