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  2. Hierarchical and recursive queries in SQL - Wikipedia

    en.wikipedia.org/wiki/Hierarchical_and_recursive...

    In standard SQL:1999 hierarchical queries are implemented by way of recursive common table expressions (CTEs). Unlike Oracle's earlier connect-by clause, recursive CTEs were designed with fixpoint semantics from the beginning. [1] Recursive CTEs from the standard were relatively close to the existing implementation in IBM DB2 version 2. [1]

  3. SQL:1999 - Wikipedia

    en.wikipedia.org/wiki/SQL:1999

    The SQL:1999 standard calls for a Boolean type, [1] but many commercial SQL servers (Oracle Database, IBM Db2) do not support it as a column type, variable type or allow it in the results set. Microsoft SQL Server is one of the few database systems that properly supports BOOLEAN values using its "BIT" data type [citation needed]. Every 1–8 ...

  4. Object-PL/SQL - Wikipedia

    en.wikipedia.org/wiki/Object-PL/SQL

    Here is a small set of examples of O-PL/SQL syntax, extracted from the official documentation [12] and other sources: A simple example of object-oriented PL/SQL [ 13 ] create or replace type base_type as object ( a number , constructor function base_type return self as result , member function func return number , member procedure proc ( n ...

  5. Recursive join - Wikipedia

    en.wikipedia.org/wiki/Recursive_join

    The recursive join is an operation used in relational databases, also sometimes called a "fixed-point join". It is a compound operation that involves repeating the join operation, typically accumulating more records each time, until a repetition makes no change to the results (as compared to the results of the previous iteration).

  6. Select (SQL) - Wikipedia

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

    The GROUP BY clause projects rows having common values into a smaller set of rows. GROUP BY is often used in conjunction with SQL aggregation functions or to eliminate duplicate rows from a result set. The WHERE clause is applied before the GROUP BY clause. The HAVING clause includes a predicate used to filter rows resulting from the GROUP BY ...

  7. Spirit Airlines filed for bankruptcy. What does that mean for ...

    www.aol.com/spirit-airlines-filed-bankruptcy...

    NEW YORK (AP) — Spirit Airlines, the largest budget carrier in the U.S., filed for Chapter 11 bankruptcy protection Monday. The airline said customers should not see any disruption to their ...

  8. SQL syntax - Wikipedia

    en.wikipedia.org/wiki/SQL_syntax

    Because it acts on the results of the GROUP BY clause, aggregation functions can be used in the HAVING clause predicate. The ORDER BY clause identifies which column[s] to use to sort the resulting data, and in which direction to sort them (ascending or descending). Without an ORDER BY clause, the order of rows returned by an SQL query is undefined.

  9. 34 Unique Things to Do on New Year's Eve to Ring in 2025 - AOL

    www.aol.com/25-unique-things-years-eve-204800916...

    When Harry Met Sally, for example, where the film's climactic scene takes place at a NYE party. About Time starts at a New Year's Eve party, too. RELATED: Best Movies to Stream if You're Staying ...