Computer Science

Missing join condition in join query produces cartesian product.

SQL Joins & Grouping

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Answer

True

Reason — When a join query has no join condition specified, it results in a Cartesian product. This means that every row from the first table is combined with every row from the second table.

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Computer Science

Missing join condition in join query produces cartesian product.

SQL Joins & Grouping

Answer

Related Questions

The SQL keyword GROUP BY instructs the DBMS to group together those rows that have the same value in a column.

Equi join can use any operator for joining two tables.

COUNT(field_name) tallies only those rows that contain a value; it ignores all null values.

SUM, AVG, MIN, and MAX can only be used with numeric columns.