Tabel maken - SQL-fout:ORA-00905:ontbrekend trefwoord

In plaats van double je kunt proberen NUMBER (precision, scale) . te gebruiken . Dus probeer zoiets als dit:

CREATE TABLE Player(
Plyr_ID int NOT NULL PRIMARY KEY, 
Plyr_Fname NVARCHAR2(20),
Plyr_Sname NVARCHAR2(20),
Plyr_DOB date,
Plyr_Height NUMBER(7,2),    --Change as per your requirement.
Plyr_Weight NUMBER(7,2),
Plyr_position NVARCHAR2(20),
Plyr_experience int,
Team_ID INT NOT NULL,
CONSTRAINT fk_Team FOREIGN KEY (Team_ID) references Team(Team_ID)

);

OPMERKING :double precision is ANSI-ondersteunde datatypes terwijl NUMBER is Oracle ingebouwde datatypes

Dus als je wilt, kun je je aan het dubbele houden met precisie als:

CREATE TABLE Player(
Plyr_ID int NOT NULL PRIMARY KEY, 
Plyr_Fname NVARCHAR2(20),
Plyr_Sname NVARCHAR2(20),
Plyr_DOB date,
Plyr_Height DOUBLE PRECISION,
Plyr_Weight DOUBLE PRECISION,
Plyr_position NVARCHAR2(20),
Plyr_experience int,
Team_ID INT NOT NULL,
CONSTRAINT fk_Team FOREIGN KEY (Team_ID) references Team(Team_ID)
);