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All the candidate keys of a relation can uniquely identify the records of the relation, but only one of them is used as the primary key of the relation. The remaining candidate keys are called unique keys because they can uniquely identify a record in a relation. Unique keys can consist of multiple columns. Unique keys are also called alternate ...
In computing, data deduplication is a technique for eliminating duplicate copies of repeating data. Successful implementation of the technique can improve storage utilization, which may in turn lower capital expenditure by reducing the overall amount of storage media required to meet storage capacity needs.
Google Sheets is a spreadsheet application and part of the free, web-based Google Docs Editors suite offered by Google. Google Sheets is available as a web application; a mobile app for: Android, iOS, and as a desktop application on Google's ChromeOS. The app is compatible with Microsoft Excel file formats. [5]
A Universally Unique Identifier (UUID) is a 128-bit label used to uniquely identify objects in computer systems. The term Globally Unique Identifier (GUID) is also used, mostly in Microsoft systems. [1] [2] When generated according to the standard methods, UUIDs are, for practical purposes, unique.
The duplication detector is a tool used to compare any two web pages to identify text which has been copied from one to the other. It can compare two Wikipedia pages to one another, two versions of a Wikipedia page to one another, a Wikipedia page (current or old revision) to an external page, or two external pages to one another.
The duplicate content can be substantial parts of the content within or across domains and can be either exactly duplicate or closely similar. [1] When multiple pages contain essentially the same content, search engines such as Google and Bing can penalize or cease displaying the copying site in any relevant search results.
Addition of a “Handle Duplicate Records” dialog to select/remove duplicate records in Calc; Solver models can be saved into spreadsheets and Solver is able to provide a sensitivity analysis report; Addition of new sheet protection options related to Pivot Tables, Pivot Charts and AutoFilters
The atmospheric temperature in the troposphere normally decreases by about 6-7 K/km, but small changes in this gradient can have a large effect on the final column height. Theoretically, the maximum achievable column height is thought to be about 55 km (34 mi). In practice, column heights ranging from about 2–45 km (1.2–28.0 mi) are seen.