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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. CTEs can be thought of as alternatives to derived tables ( subquery ), views , and inline user-defined functions.
Power Query was first announced in 2011 under the codename "Data Explorer" as part of Azure SQL Labs. In 2013, in order to expand on the self-service business intelligence capabilities of Microsoft Excel, the project was redesigned to be packaged as an add-in Excel and was renamed "Data Explorer Preview for Excel", [4] and was made available for Excel 2010 and Excel 2013. [5]
SQL was initially developed at IBM by Donald D. Chamberlin and Raymond F. Boyce after learning about the relational model from Edgar F. Codd [12] in the early 1970s. [13] This version, initially called SEQUEL (Structured English Query Language), was designed to manipulate and retrieve data stored in IBM's original quasirelational database management system, System R, which a group at IBM San ...
Date: 3 October 2010 (SVG upload) Source: SVG created from sqlite370.eps, distributed with version 3.7.2 documentation: Author: Part of the SQLite documentation, which has been released by author D. Richard Hipp to the public domain.
Power as a relational concept: Power exists in relationships. The issue here is often how much relative power a person has in comparison to one's partner. Partners in close and satisfying relationships often influence each other at different times in various arenas. Power as resource-based: Power usually represents a struggle over resources ...