In this work, we present a query formulation assistance system, called Qassist, which was designed to map input query keywords or phrases into various ...
From keywords to relational database content: A semantic mapping method · A keyword-based method for querying relational databases is proposed. · The ...
Establishing Logical Connectivity between. Query Keywords and Database Contents. Dong-Guk Shin and Lung-Yung Chu. Computer Science & Engineering, University of ...
This article covers some best practices for writing SQL queries for data analysts and data scientists.
Aug 22, 2023 · Logical operators are used to combine or manipulate the conditions given in a query to retrieve or manipulate data . there are some logical ...
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Learn about logical query operators in MongoDB. The $and, $not, $nor, and $or operators help you build complex queries based on logical conditions.
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Learn how to use AND, OR, and NOT operators in SQL WHERE clause. This SQL tutorial will help beginners understand SQL logical operators and their usage.
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Sep 25, 2024 · The three most commonly used operators are AND, OR, NOT. These are known as Boolean operators. They can be used to broaden or narrow a search and to exclude ...
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Jan 16, 2024 · A query tree, sometimes referred to as a sequence tree, is built describing the logical steps needed to transform the source data into the ...
In this article I look at the question of whether to place business logic in SQL queries or in-memory code, considering primarily performance and ...
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