多個錯誤下降並創建表

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我不擅長編寫創建腳本。並且SQL Developer錯誤消息不幫助我。我正在找人幫我弄清楚什麼是錯誤的，因爲我不能單獨做這件事。多個錯誤下降並創建表

這裏是我的代碼：

/*Drops */ 
DROP TABLE Accountsite CASCADE CONSTRAINTS; 
DROP TABLE Player CASCADE CONSTRAINTS; 
DROP TABLE Stream CASCADE CONSTRAINTS; 
DROP TABLE Server CASCADE CONSTRAINTS; 
DROP TABLE Activegame CASCADE CONSTRAINTS; 
DROP TABLE Livegame CASCADE CONSTRAINTS; 
DROP TABLE Toplist CASCADE CONSTRAINTS; 
DROP TABLE Champion CASCADE CONSTRAINTS; 
DROP TABLE Skin CASCADE CONSTRAINTS; 
DROP TABLE Sale CASCADE CONSTRAINTS; 
DROP TABLE PlayerServer CASCADE CONSTRAINTS; 
DROP TABLE ActiveServer CASCADE CONSTRAINTS; 

/*Creates */ 
CREATE TABLE Accountsite(
AccountID NUMBER PRIMARY KEY NOT NULL, 
PasswordAcc VARCHAR(20) NULL, 
Email VARCHAR(20) NULL, 
Playername VARCHAR(20) NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername)); 

CREATE TABLE Player(
PlayerID NUMBER PRIMARY KEY, 
Mostplayed VARCHAR(20) NOT NULL, 
RankID NUMBER(10) NOT NULL, 
Playername VARCHAR(20) NOT NULL); 

CREATE TABLE Stream(
StreamID NUMBER PRIMARY KEY, 
StreamAdress VARCHAR(20) NOT NULL, 
Playername VARCHAR(20) NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername)); 

CREATE TABLE Server(
ServerID NUMBER PRIMARY KEY, 
Servername VARCHAR(20)); 

CREATE TABLE Activegame(
GameID NUMBER PRIMARY KEY); 

CREATE TABLE Livegame(
SpectateID NUMBER PRIMARY KEY); 

CREATE TABLE Toplist(
ToplistID NUMBER PRIMARY KEY, 
ToplistFunction VARCHAR(20) NOT NULL, 
Playername VARCHAR(20) NOT NULL, 
Championname VARCHAR(20) NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername), 
FOREIGN KEY(Champion) REFERENCES Champion (Champion)); 

CREATE TABLE Champion(
ChampionID NUMBER PRIMARY KEY, 
Championname VARCHAR(20) NOT NULL, 
Championskill1 VARCHAR(20) NOT NULL, 
Championskill2 VARCHAR(20) NOT NULL, 
Championskill3 VARCHAR(20) NOT NULL, 
Championskill4 VARCHAR(20) NOT NULL, 
Championcost NUMBER(10) DEFAULT(6300), 
SkinID NUMBER(10) NOT NULL, 
SaleID NUMBER(10) NOT NULL, 
FOREIGN KEY(SkinID) REFERENCES Skin (SkinID), 
FOREIGN KEY(SaleID) REFERENCES Sale (SaleID)); 

CREATE TABLE Skin(
SkinID NUMBER PRIMARY KEY, 
Skinname VARCHAR(20) NOT NULL, 
Skincost NUMBER(10) NOT NULL); 

CREATE TABLE Sale(
SaleID NUMBER PRIMARY KEY); 

CREATE TABLE PlayerServer(
Playername VARCHAR(20) NOT NULL, 
ServerIDPlayer NUMBER NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername), 
FOREIGN KEY(ServerIDPlayer) REFERENCES Server (ServerID), 
Constraint PlayerserverID PRIMARY KEY (Playername, ServerIDPlayer)); 

CREATE TABLE ActiveServer(
GameIDServer NUMBER NOT NULL, 
ServerIDGame NUMBER NOT NULL, 
FOREIGN KEY(GameIDServer) REFERENCES Acrivegame (GameID), 
FOREIGN KEY(ServerIDGame) REFERENCES Server (ServerID), 
Constraint ActiveserverID PRIMARY KEY (GameIDServer, ServerIDGame)); 

commit;

而且是錯誤如下：

Error starting at line : 2 in command - 
DROP TABLE Accountsite CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Table PLAYER dropped. 

Error starting at line : 4 in command - 
DROP TABLE Stream CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Table SERVER dropped. 

Table ACTIVEGAME dropped. 

Table LIVEGAME dropped. 

Error starting at line : 8 in command - 
DROP TABLE Toplist CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Error starting at line : 9 in command - 
DROP TABLE Champion CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Table SKIN dropped. 

Table SALE dropped. 

Error starting at line : 12 in command - 
DROP TABLE PlayerServer CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Error starting at line : 13 in command - 
DROP TABLE ActiveServer CASCADE CONSTRAINTS 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Error starting at line : 16 in command - 
CREATE TABLE Accountsite(
AccountID NUMBER PRIMARY KEY NOT NULL, 
PasswordAcc VARCHAR(20) NULL, 
Email VARCHAR(20) NULL, 
Playername VARCHAR(20) NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername)) 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Table PLAYER created. 

Error starting at line : 29 in command - 
CREATE TABLE Stream(
StreamID NUMBER PRIMARY KEY, 
StreamAdress VARCHAR(20) NOT NULL, 
Playername VARCHAR(20) NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername)) 
Error report - 
SQL Error: ORA-02270: Geen overeenkomende unieke of primaire sleutel voor deze kolomlijst. 
02270. 00000 - "no matching unique or primary key for this column-list" 
*Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement 
      gives a column-list for which there is no matching unique or primary 
      key constraint in the referenced table. 
*Action: Find the correct column names using the ALL_CONS_COLUMNS 
      catalog view 

Table SERVER created. 

Table ACTIVEGAME created. 

Table LIVEGAME created. 

Error starting at line : 45 in command - 
CREATE TABLE Toplist(
ToplistID NUMBER PRIMARY KEY, 
ToplistFunction VARCHAR(20) NOT NULL, 
Playername VARCHAR(20) NOT NULL, 
Championname VARCHAR(20) NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername), 
FOREIGN KEY(Champion) REFERENCES Champion (Champion)) 
Error report - 
SQL Error: ORA-00904: "CHAMPION": ongeldige ID 
00904. 00000 - "%s: invalid identifier" 
*Cause:  
*Action: 

Error starting at line : 53 in command - 
CREATE TABLE Champion(
ChampionID NUMBER PRIMARY KEY, 
Championname VARCHAR(20) NOT NULL, 
Championskill1 VARCHAR(20) NOT NULL, 
Championskill2 VARCHAR(20) NOT NULL, 
Championskill3 VARCHAR(20) NOT NULL, 
Championskill4 VARCHAR(20) NOT NULL, 
Championcost NUMBER(10) DEFAULT(6300), 
SkinID NUMBER(10) NOT NULL, 
SaleID NUMBER(10) NOT NULL, 
FOREIGN KEY(SkinID) REFERENCES Skin (SkinID), 
FOREIGN KEY(SaleID) REFERENCES Sale (SaleID)) 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Table SKIN created. 

Table SALE created. 

Error starting at line : 74 in command - 
CREATE TABLE PlayerServer(
Playername VARCHAR(20) NOT NULL, 
ServerIDPlayer NUMBER NOT NULL, 
FOREIGN KEY(Playername) REFERENCES Player (Playername), 
FOREIGN KEY(ServerIDPlayer) REFERENCES Server (ServerID), 
Constraint PlayerserverID PRIMARY KEY (Playername, ServerIDPlayer)) 
Error report - 
SQL Error: ORA-02270: Geen overeenkomende unieke of primaire sleutel voor deze kolomlijst. 
02270. 00000 - "no matching unique or primary key for this column-list" 
*Cause: A REFERENCES clause in a CREATE/ALTER TABLE statement 
      gives a column-list for which there is no matching unique or primary 
      key constraint in the referenced table. 
*Action: Find the correct column names using the ALL_CONS_COLUMNS 
      catalog view 

Error starting at line : 81 in command - 
CREATE TABLE ActiveServer(
GameIDServer NUMBER NOT NULL, 
ServerIDGame NUMBER NOT NULL, 
FOREIGN KEY(GameIDServer) REFERENCES Acrivegame (GameID), 
FOREIGN KEY(ServerIDGame) REFERENCES Server (ServerID), 
Constraint ActiveserverID PRIMARY KEY (GameIDServer, ServerIDGame)) 
Error report - 
SQL Error: ORA-00942: Tabel of view bestaat niet. 
00942. 00000 - "table or view does not exist" 
*Cause:  
*Action: 

Commit complete.

我在做什麼錯？

來源

2016-04-09 Bart Selten

這個問題包含太多的錯誤需要一次處理。我建議通過逐個執行它們並試圖單獨處理每個錯誤來分別理解每個語句。例如 - 你的腳本中的第一個錯誤是'table或view'不存在'類型，所以你可以理解它們的原因是試圖刪除一個不存在的表。在你篩選出所有成功的陳述並嘗試自己解決一些錯誤之後，你應該爲單個陳述提出問題，這是錯誤的。 –

在這種情況下，請忽略drop語句中的錯誤，因爲創建失敗，所以它們是預期的。創作中的一些錯誤是因爲較早的失敗，所以從第一個非丟棄錯誤開始，並找出結果。哪個是ORA-02270創建Stream的;這是不言而喻的。（提示：該表不應該有玩家名*存儲）。 –

呃，好吧，那不是第一個，在所有錯誤的未格式化轉儲中很難看到。查看您創建表的順序，以及它們引用的其他表。當您創建Accountsite時，Player是否存在？這也有同樣的問題存儲玩家的名字。 –

你的腳本有幾個問題。基本上，當你包含外鍵約束時，它們必須指向已存在的表中的唯一列（必須在引用表之前創建）。在試圖刪除表

你基本上得到一個ORA-00942因爲你的表不存在，

錯誤因而不能被刪除。作爲解決方法，您可以捕獲該異常。它已被描述爲in this answer。在試圖創建一個表

錯誤您有這個主題中的幾個問題。首先是執行表Accountsite的創建語句。您還會在此處獲得ORA-00942，因爲您試圖在外鍵約束中引用的表Player不存在。您需要在Accountsite之前創建它，以便它可以引用存在的內容。

創建表Stream時發生下一個錯誤。這是ORA-02270。您不能引用另一個表中不唯一的列。您需要使Playername列在表Player中唯一。請注意，當您使用Accountsite表修復第一個錯誤時，對於此表，與Stream相同，您將嘗試引用在創建表語句中不唯一的列（因此您還需要修復第二個錯誤，它會沒有錯誤）。

現在的Toplist表。 Champion表中沒有Champion列。你可能意思是Championname。在這種情況下，還需要在Toplist表之前創建Champion表，因爲您無法爲不存在的表創建外鍵約束。您還需要聲明您的Championname列爲Champion表中唯一（與您在Playername中使用表Player中的表格非常相似）。

在Champion您引用Sale和Skin表 - 他們都需要前Champion表中創建（參見上面的解釋）。

至於PlayerServer當您在Player(Playername)上創建唯一約束時，該錯誤將自行解決。

在ActiveServer你有一個輸入"Acrivegame"，我認爲應該是Activegame錯字。

來源

2016-04-09 11:22:00

當然流等應該存儲播放器ID，而不是名稱？名字可能並不是唯一的，但即使是這樣，複製名稱也會打破正常化。該ID很方便用作FK。與冠軍的名字一樣。 –

你是否給我提示_not mine_ design？我只是在幫助錯誤。 –

多個錯誤下降並創建表

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