"
ALTER TABLE
DROP CONSTRAINT
;
ALTER TABLE
DROP CONSTRAINT
;
ALTER TABLE
ADD
CONSTRAINT
CHECK
;
ALTER TABLE
ADD
CONSTRAINT
CHECK
;
DROP VIEW
;
COMMIT;
DROP INDEX
;
ALTER TABLE
DROP COLUMN
;
ALTER TABLE
ADD COLUMN
DEFAULT
NOT NULL
;
ALTER TABLE
ALTER COLUMN
TYPE
;
ALTER TABLE
ALTER COLUMN
DROP NOT NULL;
ALTER TABLE
ALTER COLUMN
SET NOT NULL;
ALTER TABLE
ALTER COLUMN
SET DEFAULT
;
COMMENT ON COLUMN
.
IS '
';
ALTER TABLE
ADD CONSTRAINT
PRIMARY KEY (
,
);
ALTER TABLE
DROP PRIMARY KEY;
CREATE OR REPLACE VIEW
(
,
)
AS
;
CREATE TABLE
(
NOT NULL
DEFAULT
,
);
ALTER TABLE
ADD CONSTRAINT
PRIMARY KEY (
,
);
ALTER TABLE
DROP CONSTRAINT
;
ALTER TABLE
ADD CONSTRAINT
FOREIGN KEY (
,
)
REFERENCES
(
,
);
UNIQUE
CREATE
INDEX
ON
(
);
abcdefghijklmnopqrstuvwxyz
ABCDEFGHIJKLMNOPQRSTUVWXYZ
""