PostgreSQL

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Notes


The DROP RULE statement is a Postgres language extension.


Refer to CREATE RULE for information on how to create rules.


Once a rule is dropped, access to historical information the rule has written may disappear. Usage


To drop the rewrite rule newrnle:


DROP RULE newrule;


Compatibility


SQL92


There is no DROP RULE in SQL92.

D.40 drop sequence


Name


DROP SEQUENCE — Removes an existing sequence DROP SEQUENCE name [,…]


Inputs


name The name of a sequence.


Outputs


DROP The message returned if the sequence is successfully dropped.


NOTICE: Relation «name» does not exist. This message occurs if the specified sequence does not exist.


Description


DROP SEQUENCE removes sequence number generators from the data base. With the current implementation of sequences as special tables it works just like the DROP TABLE statement.


Notes


The DROP SEQUENCE statement is a Postgres language extension.


Refer to the CREATE SEQUENCE statement for information on how to create a sequence.


Usage


To remove sequence serial from database: drop sequence serial;


Compatibility


SQL92


There is no DROP SEQUENCE in SQL92.

d.41 drop table


Name


DROP TABLE — Removes existing tables from a database DROP table name [,…]


Inputs


name The name of an existing table or view to drop.


Outputs


DROP The message returned if the command completes successfully.


ERROR Relation «name» Does Not Exist! If the specified table or view does not exist in the database.

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