मराठी

A table 'customer' has 10 columns but no row. Later, 10 new rows are inserted and 3 rows are deleted in the table. What is the degree and cardinality of the table 'customer?

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प्रश्न

A table 'customer' has 10 columns but no row. Later, 10 new rows are inserted and 3 rows are deleted in the table. What is the degree and cardinality of the table 'customer?

संख्यात्मक
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उत्तर

Given: 10 columns, 10 rows inserted and 3 rows deleted.

Degree: Number of columns = 10.

Cardinality: Remaining rows = 10 − 3 = 7.

Final answer: Degree = 10; Cardinality = 7.

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पाठ 9: Databases Concepts and SQL - EXERCISE [पृष्ठ १७४]

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सीबीएसई Computer Science with Python [English] Class 12
पाठ 9 Databases Concepts and SQL
EXERCISE | Q 21. | पृष्ठ १७४
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