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The same set of columns. In relational databases, a row is a data record within a table. Each row, which represents a complete record of specific item data, holds different data within the same structure. A row is occasionally referred to as a tuple. Incorrect: Not: a key value pair. Unlike relational databases, key-value databases do not have a specified structure. Relational databases store data in tables where each column has an assigned data type. Key-value databases are a collection of key-value pairs that are stored as individual records and do not have a predefined data structure. Reference: https://www.techopedia.com/definition/4425/database-row https://www.techtarget.com/searchdatamanagement/tip/NoSQL-database-types-explained-Key-value-store
3. the same set of columns
In a relational database, each row in a table has the same set of columns. The columns define the structure of the table, and each row contains data corresponding to those columns.
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