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The correct response is a) The query is changed from rows to groups. You can see the unique number value that each row is assigned on the left side of the screen.
A row—also known as a tuple—represents a single, implicitly organized data item in a table in the context of a relational database. A database table can be conceptualized as being made up of rows and columns. Every row in a table has the same structure and represents a group of connected data. For instance, each row would represent a single company in a table that represents businesses. Columns may display information about the company such as its name, street address, whether it is publicly traded, its VAT number, etc. Each row would link one employee with one department in a table that shows the relationships between employees and departments. A row must be regarded as delivering a succession of data values, one in each column of the table, in order for the implicit structure of a row and the meaning of the data values in a row to make sense. Following that, the row is read as a relvar made up of a collection of tuples, each of which contains the name of the pertinent column and the value that this row supplies for that column.
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