Create tables a few tables on oracle sql server.

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CREATE TABLE PLANET

PLANET_NAME CHAR(10) NOT NULL,

RADIUS INT(6)NOT NULL,

ATMOSPHERE VARCHAR(15) NOT NULL,

CONSTRAINT PKPLANET PRIMARY KEY (PLANETID));

CREATE TABLE STARSHIP (

STARSHIPID INT NOT NULL,

STARSHIPNAME CHAR(10) NOT NULL,

CREWSIZE DECIMAL(4,0) NOT NULL,

SHIPCLASS VARCHAR(11) NOT NULL,

LAUNCHSTARDATE CHAR(5) NOT NULL,

CONSTRAINT PKSTARSHIP PRIMARY KEY (STARSHIPID));

CREATE TABLE PLANETVISIT

PLANETID INT(1) NOT NULL,

STARSHIPID INT(3) NOT NULL,

ARRIVALSTARTDATE CHAR(5) NOT NULL,

DEPARTURESTARTDATE CHAR(5) NOT NULL,

CONSTRAINT PKPLANETVISIT PRIMARY KEY(PLANETID, STARSHIPID, ARRIVALDATE),

CONSTRAINT FKPLANET FOREIGN KEY (PLANETID) REFERENCES PLANET (PLANETID),

CONSTRAINT FKSTARSHIP FOREIGN KEY (STARSHIPID) REFERENCES STARSHIP (STARSHIPID));

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