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- Unified Data Model Description: The Unified Data Model is an approach that integrates multiple data models into a single coherent framework, facilitating the(...) Read more
- UNION ALL Description: The SQL operation 'Union All' (UNION ALL) is a fundamental tool in Structured Query Language (SQL) that allows combining the(...) Read more
- UPPER Description: The SQL function that converts a string to uppercase is a fundamental tool in data handling within relational databases. This(...) Read more
- USING Description: The 'USING' clause in SQL is a tool used to specify the columns that will be employed in a JOIN operation between two or more(...) Read more
- Unpivot Description: Unpivoting is the process of converting columns into rows, often used in data transformation. This process is fundamental in the(...) Read more
- UPDATABLE VIEW Description: An updatable view is a database object that allows users to perform update, insert, and delete operations on the underlying base(...) Read more
- UNDEFINED Description: The term 'Undefined' refers to a variable or value that has not been assigned in a programming context. In programming languages, a(...) Read more
- UNIQUE INDEX Description: The Unique Index is a data structure used in relational databases that ensures the uniqueness of values in a specific column. This(...) Read more
- UNIQUE CONSTRAINT Description: The unique constraint is a rule in databases that ensures the uniqueness of values in a specific column of a table. This means that(...) Read more
- UNION VIEW Description: A UNION VIEW in SQL is a powerful tool that allows combining data from multiple result sets into a single result set. This(...) Read more
- UNIQUE KEY Description: The Unique Key is a field or combination of fields that uniquely identifies a record in a table within a database. Its main(...) Read more
- UNION ALL VIEW Description: A union all view in SQL is a tool that allows combining the results of multiple queries into a single result table. Unlike the(...) Read more
- UNIQUE CONSTRAINT NAME Description: The unique constraint name in a database refers to the designation given to a constraint that ensures that values in a column or a(...) Read more
- UNIQUE IDENTIFIER Description: A unique identifier is a unique value used to identify a specific record in a database. This concept is fundamental in database(...) Read more
- UNIQUE ROW Description: A unique row in an SQL table refers to an entry that is uniquely identified by a key, commonly known as a primary key. This key is(...) Read more
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