DROP a table

DROP an unwanted table

1.

schema:scott

Naturally, all of the data in the table is lost when the table is dropped.

Foreign Key references can cause problems.

CREATE TABLE t_test
 (a INTEGER NOT NULL PRIMARY KEY
 ,b VARCHAR(10)
 )

DROP TABLE t_test

DROP TABLE t_test Submit SQLrestore default

result

CREATE and DROP Operations

CREATE a new table

DROP a table

Composite primary key

CREATE a foreign key

CREATE a VIEW

Autonumber fields

ALTER TABLE ... ADD COLUMN

ALTER TABLE ... DROP COLUMN

ALTER TABLE ... ADD constraint

CREATE TABLE problems: Invalid column name.

CREATE TABLE problems: Insufficient privileges.

CREATE TABLE problems: Table already exists.

DROP TABLE problems: Foreign key references.

CREATE TABLE problems: Foreign key references.

Rename column