DELETE statement can delete tuples in a relation but can not remove the relation schema.
Question
DELETE statement can delete tuples in a relation but can not remove the relation schema.
Solution
Yes, that's correct. The DELETE statement in SQL is used to delete existing records in a table (also known as tuples in a relation). However, it does not delete the table itself or its schema. Here's a step-by-step explanation:
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The DELETE statement is used in SQL to remove one or more records from a table. The basic syntax is:
DELETE FROM table_name WHERE condition;. If you do not specify a WHERE clause, all records will be deleted. -
When you execute a DELETE statement, the affected records are removed from the table, but the table structure, its columns, constraints, indexes, and so on (the schema) remain intact.
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If you want to remove the entire table including its schema, you would use the DROP TABLE statement instead. The basic syntax is:
DROP TABLE table_name;. -
So, in summary, the DELETE statement is used to remove data from a table, but it does not affect the table's schema. The table itself, along with its defined columns and constraints, remains in the database.
Similar Questions
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