I am using sqlite tool of Mozilla Firefox to manage my database and i have to create a table in which i have to use foreign key . How to do that?
These are my tables,
Table Name:QuestionWithAnswer
Column_Name=Format:
Date=DATETIME(Primary Key),
Question=Text,
Answer=Text,
UserAnswer=Text,
isCorrext=Text.
Table Name:Question
Column_Name=Format:
Question_ID=Integer(Primary Key)
Question=Text
Table Name:Record
Column_Name=Format:
id=integer(Primary Key)
DatewithTime=DATETIME(foreign key from QuestionWithAnswer)
UserAnswer=TEXT
isCorrect=BOOl
Question_ID=integer(foreign key from Question)
Above are my given tables with columns and i want to create 3rd table names Record by using foreign key. This is my create stmt
TABLE Records
(
id INTEGER PRIMARY KEY,
DateWithTime DATETIME,
UserAnswer TEXT,
isCorrect TEXT,
Question_ID TEXT
FOREIGN KEY(DateWithTime) REFERENCES QuestionWithAnswer(Date),
FOREIGN KEY(Question_ID) REFERENCES Question(question_ID),
);
but it is giving me error as " QLiteManager: Likely SQL syntax error: CREATE TABLE Records ( id INTEGER PRIMARY KEY, DateWithTime DATETIME, UserAnswer TEXT, isCorrect TEXT, Question_ID TEXT
FOREIGN KEY(DateWithTime) REFERENCES QuestionWithAnswer(Date), FOREIGN KEY(Question_ID) REFERENCES Question(question_ID), ); [ near "FOREIGN": syntax error ] Exception Name: NS_ERROR_FAILURE Exception Message: Component returned failure code: 0x80004005 (NS_ERROR_FAILURE) [mozIStorageConnection.createStatement] ".
Some errors in the syntax:
Add a ,
before the first FOREIGN KEY
table constraint.
Remove the ,
before the closing )
paren.
after you define your attribut, add this following code
FOREIGN KEY (colonne_name) REFERENCES parent_table_name(colonne_name)
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