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The RANK() OVER window function acts like ROW_NUMBER, but may return more or less than n rows in case of tie conditions, e.g. to return the top-10 youngest persons: SELECT * FROM ( SELECT RANK () OVER ( ORDER BY age ASC ) AS ranking , person_id , person_name , age FROM person ) AS foo WHERE ranking <= 10
Reserved words in SQL and related products In SQL:2023 [3] In IBM Db2 13 [4] In Mimer SQL 11.0 [5] In MySQL 8.0 [6] In Oracle Database 23c [7] In PostgreSQL 16 [1] In Microsoft SQL Server 2022 [2]
Teradata released its DBC/1012 database machine in 1984. [14] [15] In 1990, the company acquired Sharebase, originally named Britton Lee. [16] In September 1991, AT&T Corporation acquired NCR Corporation, [17] which announced the acquisition of Teradata for about $250 million in December. Teradata built the first system over 1 terabyte for Wal ...
The DBC/1012 Data Base Computer was a database machine introduced by Teradata Corporation in 1984, as a back-end data base management system for mainframe computers. [1] The DBC/1012 harnessed multiple Intel microprocessors, each with its own dedicated disk drive, by interconnecting them with the Ynet switching network in a massively parallel processing system.
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A common table expression, or CTE, (in SQL) is a temporary named result set, derived from a simple query and defined within the execution scope of a SELECT, INSERT, UPDATE, or DELETE statement.
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