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  2. Join (SQL) - Wikipedia

    en.wikipedia.org/wiki/Join_(SQL)

    Outer joins subdivide further into left outer joins, right outer joins, and full outer joins, depending on which table's rows are retained: left, right, or both (in this case left and right refer to the two sides of the JOIN keyword).

  3. Relational algebra - Wikipedia

    en.wikipedia.org/wiki/Relational_algebra

    The right outer join of relations R and S is written as R S. [e] The result of the right outer join is the set of all combinations of tuples in R and S that are equal on their common attribute names, in addition to tuples in S that have no matching tuples in R. [citation needed] For example, consider the tables Employee and Dept and their right ...

  4. Syntactic sugar - Wikipedia

    en.wikipedia.org/wiki/Syntactic_sugar

    In SQL, a mere JOIN is equivalent to an INNER JOIN, the latter clarifying that the join statement is specifically an inner join operation as opposed to an outer join operation. Likewise, one may omit the OUTER from the LEFT OUTER JOIN, RIGHT OUTER JOIN and FULL OUTER JOIN.

  5. Talk:Join (SQL) - Wikipedia

    en.wikipedia.org/wiki/Talk:Join_(SQL)

    NATURAL JOIN is just a special case, of either INNER JOIN or OUTER JOIN. Keep things together, i.e. no main section for NATURAL JOIN. Also JOIN USING syntax should be placed under INNER and OUTER JOIN. 155.4.126.237 07:48, 24 May 2017 (UTC)

  6. Select (SQL) - Wikipedia

    en.wikipedia.org/wiki/Select_(SQL)

    A subquery can use values from the outer query, in which case it is known as a correlated subquery. Since 1999 the SQL standard allows WITH clauses, i.e. named subqueries often called common table expressions (named and designed after the IBM DB2 version 2 implementation; Oracle calls these subquery factoring).

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  8. Block nested loop - Wikipedia

    en.wikipedia.org/wiki/Block_nested_loop

    A block-nested loop (BNL) is an algorithm used to join two relations in a relational database. [1]This algorithm [2] is a variation of the simple nested loop join and joins two relations and (the "outer" and "inner" join operands, respectively).

  9. Today's Wordle Hint, Answer for #1274 on Saturday, December ...

    www.aol.com/todays-wordle-hint-answer-1274...

    If you’re stuck on today’s Wordle answer, we’re here to help—but beware of spoilers for Wordle 1274 ahead. Let's start with a few hints.