目录
- PostgreSQL Tutorial
- Database
-
PostgreSQL Syntax
- PostgreSQL Operators
- PostgreSQL SELECT
- PostgreSQL
- PostgreSQL WHERE
- PostgreSQL ORDER BY
- PostgreSQL LIMIT
- PostgreSQL MIN and MAX
- PostgreSQL COUNT
- PostgreSQL SUM
- PostgreSQL AVG
- PostgreSQL LIKE
- PostgreSQL IN
- PostgreSQL BETWEEN
- PostgreSQL AS
- PostgreSQL Joins
- PostgreSQL INNER JOIN
- PostgreSQL LEFT JOIN
- PostgreSQL RIGHT JOIN
- PostgreSQL FULL JOIN
- PostgreSQL CROSS JOIN
- PostgreSQL UNION
- PostgreSQL GROUP BY
- PostgreSQL HAVING
- PostgreSQL EXISTS
- PostgreSQL ANY
- PostgreSQL ALL
- PostgreSQL CASE
- Exercises
PostgreSQL DROP TABLE
The DROP TABLE Statement
The DROP TABLE statement is used to drop an existing table in a database.
Note: Be careful before dropping a table. Deleting a table will result in loss of all information stored in the table!
The following SQL statement drops the existing table cars:
Example
Delete the cars table:
DROP TABLE cars;
Result
DROP TABLE
Display Table
To check the result we can display the table with this SQL statement:
Example
SELECT * FROM cars;
Which will result in an error, because the cars table no longer exists:
Result
ERROR: relation "cars" does not exist
LINE 1: SELECT * FROM cars;
^
PostgreSQL Exercises
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