Question

我正在尝试创建多个表并收到不同的错误：我在某些表上收到没有正确的括号错误，每个表只有1个主键。

CREATE TABLE GAMER 
(
    USERNAME                 VARCHAR(255) PRIMARY KEY ,
    PASSWORD_password        VARCHAR(255) ,
    FIRSTNAME                VARCHAR(255) ,
    LASTNAME                 VARCHAR(255) ,
    EMAIL                    VARCHAR(255) 
);

CREATE TABLE CHARACTER_character 
(
    CHARACTER_NAME          VARCHAR(150) PRIMARY KEY ,
    LEVEL_level             INT(150) ,  
    EXP_exp                 INT(1250) ,
    HP                      INT(1250) ,
    MP                      INT(1250) ,
    STRENGTH                INT(1250) ,
    INTILLIGENCE            INT(1250) ,
    DEXTERITY               INT(1250) ,
    CLASS_class             VARCHAR(150) ,
    USERNAME                VARCHAR(150) , 

    CONSTRAINT username_fk  FOREIGN KEY (USERNAME) REFERENCES GAMER
); 

CREATE TABLE PVP_MATCH 
( 
    MATCHID                 INT(15) PRIMARY KEY ,
    WINNER_NAME             VARCHAR(150),
    LOSER_NAME              VARCHAR(150) , 
    KILL_TIME               INT(2000) , 
    KILL_SCORE              INT(2000) , 

    CONSTRAINT WINNER_NAME_fk FOREIGN KEY (WINNER_NAME) REFERENCES CHARACTER_character(CHARACTER_NAME) , 
    CONSTRAINT LOSER_NAME_fk  FOREIGN KEY (LOSER_NAME)  REFERENCES CHARACTER_character(CHARACTER_NAME)
); 

CREATE TABLE GUILD 
(
    GUILD_NAME              VARCHAR(150)PRIMARY KEY ,
    FOUNDING_TIME           VARCHAR(1500) ,
    STATUS                  VARCHAR(1500) 
);

CREATE TABLE CHARACTER_GUILD 
(
    GUILD_NAME              VARCHAR(1500) PRIMARY KEY ,
    CHARACTER_NAME          VARCHAR(1500) PRIMARY KEY , 

    CONSTRAINT GUILD_NAME_fk FOREIGN KEY (GUILD_NAME) REFERENCES GUILD(GUILD_NAME)  , 
    CONSTRAINT CHARACTER_NAME_fk FOREIGN KEY (CHARACTER_NAME) REFERENCES CHARACTER_character(CHARACTER_NAME)
); 

CREATE TABLE ITEM 
(
    ITEM_NAME               VARCHAR(1500) PRIMARY KEY , 
    VALUE_value             INT(1500) , 
    STATUS                  VARCHAR(1500) ,
    TYPE_type               INT(1500) 
); 

CREATE TABLE ARMOR 
(
    ITEM_NAME               VARCHAR(1500) PRIMARY KEY , 
    DEFENSE                 INT(1500) , 
    TYPE_type               INT(1500) , 

    CONSTRAINT ITEM_NAME_fk FOREIGN KEY (ITEM_NAME) REFERENCES ITEM(ITEM_NAME)
);

CREATE TABLE ACCESSORY (

    ITEM_NAME               VARCHAR(1500) PRIMARY KEY ,
    SPECIAL_EFFECTS         VARCHAR(1500) , 
    TYPE_type               VARCHAR(1500) , 

    CONSTRAINT ITEM_NAME_fk FOREIGN KEY (ITEM_NAME) REFERENCES ITEM(ITEM_NAME)
);

CREATE TABLE WEAPON ( 
    ITEM_NAME               VARCHAR(1500) PRIMARY KEY ,
    SPEED                   INT(1500) , 
    DPS                     INT(1500) , 

    CONSTRAINT ITEM_NAME_fk FOREIGN KEY (ITEM_NAME) REFERENCES ITEM(ITEM_NAME)
);

CREATE TABLE CHARACTER_ITEM 
( 
    CHARACTER_NAME          VARCHAR(1500) PRIMARY KEY, 
    ITEM_NAME               VARCHAR(1500) PRIMARY KEY, 

    CONSTRAINT ITEM_NAME_fk FOREIGN KEY (ITEM_NAME) REFERENCES ITEM(ITEM_NAME) , 
    CONSTRAINT CHARACTER_NAME_fk FOREIGN KEY (CHARACTER_NAME) REFERENCES CHARACTER_character
); 

CREATE TABLE SKILL 
( 
    SKILL_ID                INT(1500) PRIMARY KEY, 
    NAME_name               VARCHAR(1500) , 
    MPCOST                  INT(1500) , 
    LEVEL_level             INT(1500) , 
    DESCRIPTION             VARCHAR(1500) 
); 

CREATE TABLE CHARACTER_SKILL 
( 
    CHARACTER_NAME          VARCHAR(1500) PRIMARY KEY , 
    SKILL_ID                INT(1500) PRIMARY KEY, 

    CONSTRAINT CHARACTER_NAME_fk FOREIGN KEY CHARACTER_NAME REFERENCES CHARACTER_character(CHARACTER_NAME)  , 
    CONSTRAINT SKILL_ID_fk FOREIGN KEY SKILL_ID REFERENCES SKILL(SKILL_ID)
); 

CREATE TABLE PREREQUISITE_SKILL 
(
    SKILL_ID                INT(1500) PRIMARY KEY , 
    PREREQUISITE_SKILL_ID   VARCHAR(1500) PRIMARY KEY , 

    CONSTRAINT SKILL_ID_fk FOREIGN KEY SKILL_ID REFERENCES SKILL(SKILL_ID) , 
    CONSTRAINT PREREQUISITE_SKILL_ID_fk FOREIGN KEY (PREREQUISITE_SKILL_ID) REFERENCES SKILL(SKILL_ID)
);

我试过运行这么简单的事情：

CREATE TABLE GUILD 
(
    GUILD_NAME              VARCHAR(150)PRIMARY KEY ,
    FOUNDING_TIME           VARCHAR(1500) ,
    STATUS                  VARCHAR(1500) 
);

但是我收到了没有正确的括号错误。格式似乎正确。

Answer 1

几个错误：INT类型不接受任何宽度参数（数字可以做），复合主键需要声明为约束，并且有几个名称冲突。另外，在最后一个表中，PREREQUISITE_SKILL_ID的数据类型被声明为VARCHAR(1500)，但它看起来应该是INT，因为它引用了在INT中声明为SKILL的字段。 CREATE TABLE GAMER ( USERNAME VARCHAR(255) PRIMARY KEY , PASSWORD_password VARCHAR(255) , FIRSTNAME VARCHAR(255) , LASTNAME VARCHAR(255) , EMAIL VARCHAR(255) ); CREATE TABLE CHARACTER_character ( CHARACTER_NAME VARCHAR(150) PRIMARY KEY , LEVEL_level INT , EXP_exp INT , HP INT , MP INT , STRENGTH INT , INTILLIGENCE INT , DEXTERITY INT , CLASS_class VARCHAR(150) , USERNAME VARCHAR(150) , CONSTRAINT username_fk FOREIGN KEY (USERNAME) REFERENCES GAMER ); CREATE TABLE PVP_MATCH ( MATCHID INT PRIMARY KEY , WINNER_NAME VARCHAR(150), LOSER_NAME VARCHAR(150) , KILL_TIME INT , KILL_SCORE INT , CONSTRAINT WINNER_NAME_fk FOREIGN KEY (WINNER_NAME) REFERENCES CHARACTER_character , CONSTRAINT LOSER_NAME_fk FOREIGN KEY (LOSER_NAME) REFERENCES CHARACTER_character ); CREATE TABLE GUILD ( GUILD_NAME VARCHAR(150)PRIMARY KEY , FOUNDING_TIME VARCHAR(1500) , STATUS VARCHAR(1500) ); CREATE TABLE CHARACTER_GUILD ( GUILD_NAME VARCHAR(1500), CHARACTER_NAME VARCHAR(1500), CONSTRAINT CHARACTER_GUILD_PK PRIMARY KEY (GUILD_NAME, CHARACTER_NAME), CONSTRAINT GUILD_NAME_fk3 FOREIGN KEY (GUILD_NAME) REFERENCES GUILD , CONSTRAINT CHARACTER_NAME_fk4 FOREIGN KEY (CHARACTER_NAME) REFERENCES CHARACTER_character ); CREATE TABLE ITEM ( ITEM_NAME VARCHAR(1500) PRIMARY KEY , VALUE_value INT , STATUS VARCHAR(1500) , TYPE_type INT ); CREATE TABLE ARMOR ( ITEM_NAME VARCHAR(1500) PRIMARY KEY , DEFENSE INT , TYPE_type INT , CONSTRAINT ITEM_NAME_fk FOREIGN KEY (ITEM_NAME) REFERENCES ITEM ); CREATE TABLE ACCESSORY ( ITEM_NAME VARCHAR(1500) PRIMARY KEY , SPECIAL_EFFECTS VARCHAR(1500) , TYPE_type VARCHAR(1500) , CONSTRAINT ITEM_NAME_fk4 FOREIGN KEY (ITEM_NAME) REFERENCES ITEM ); CREATE TABLE WEAPON ( ITEM_NAME VARCHAR(1500) PRIMARY KEY , SPEED INT , DPS INT , CONSTRAINT ITEM_NAME_fk2 FOREIGN KEY (ITEM_NAME) REFERENCES ITEM ); CREATE TABLE CHARACTER_ITEM ( CHARACTER_NAME VARCHAR(1500), ITEM_NAME VARCHAR(1500), CONSTRAINT CHARACTER_ITEM_PK PRIMARY KEY (CHARACTER_NAME, ITEM_NAME), CONSTRAINT ITEM_NAME_fk3 FOREIGN KEY (ITEM_NAME) REFERENCES ITEM , CONSTRAINT CHARACTER_NAME_fk FOREIGN KEY (CHARACTER_NAME) REFERENCES CHARACTER_character ); CREATE TABLE SKILL ( SKILL_ID INT PRIMARY KEY, NAME_name VARCHAR(1500) , MPCOST INT , LEVEL_level INT , DESCRIPTION VARCHAR(1500) ); CREATE TABLE CHARACTER_SKILL ( CHARACTER_NAME VARCHAR(1500), SKILL_ID INT, CONSTRAINT CHARACTER_SKILL_PK PRIMARY KEY (CHARACTER_NAME, SKILL_ID), CONSTRAINT CHARACTER_NAME_fk34 FOREIGN KEY (CHARACTER_NAME) REFERENCES CHARACTER_character , CONSTRAINT SKILL_ID_f1k FOREIGN KEY (SKILL_ID) REFERENCES SKILL ); CREATE TABLE PREREQUISITE_SKILL ( SKILL_ID INT, PREREQUISITE_SKILL_ID INT, CONSTRAINT PREREQUISITE_SKILL_PK PRIMARY KEY (SKILL_ID, PREREQUISITE_SKILL_ID), CONSTRAINT SKILL_ID_fk2 FOREIGN KEY (SKILL_ID) REFERENCES SKILL, CONSTRAINT PREREQUISITE_SKILL_ID_fk FOREIGN KEY (PREREQUISITE_SKILL_ID) REFERENCES SKILL(SKILL_ID) );表。

为您修复此问题：请参阅示例SQL Fiddle以获取证明（使用Oracle 11G R2）。

{{1}}

我没有考虑解决约束名称冲突，只是添加了随机数。你肯定可以改进它们。

多个SQL表错误

1 个答案: