Error Unknown Column In Foreign Key Definition
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Android Sqlite Foreign Key Example
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Android Sqlite Multiple Tables Foreign Key
database professionals who wish to improve their database skills and learn from others in the community. Join them; it only takes a minute: Sign up Here's how it works: Anybody can ask a question Anybody can sqlite multiple foreign keys answer The best answers are voted up and rise to the top can't create foreign key in sqlite up vote 0 down vote favorite I'm trying to run this code in sqlite: sqlite> CREATE TABLE test(id integer primary key AUTOINCREMENT, page varchar(10), dp_record_id integer, foreign key (webserver_id) REFERENCES target_dp(id)); But I'm getting the following error message: Error: unknown column "webserver_id" in foreign key definition Here's the parent table: sqlite> .schema CREATE sqlite relationships TABLE target_dp(id integer primary key AUTOINCREMENT, server_name varchar(255), location_code varchar(10), active bit(1)); sqlite> I can't see where my syntax error is. Thanks in advance for your time. foreign-key sqlite share|improve this question asked Apr 23 '15 at 20:21 dot 271312 add a comment| 1 Answer 1 active oldest votes up vote 0 down vote accepted You are missing a webserver_id column in the TEST table. CREATE TABLE test(id integer primary key AUTOINCREMENT , page varchar(10) , dp_record_id integer , webserver_id integer , foreign key (webserver_id) REFERENCES target_dp(id)); Works just fine. share|improve this answer answered Apr 23 '15 at 21:12 Chris Sinclair 6616 You can also use the compact syntax: webserver_id integer REFERENCES target_dp(id) –ypercubeᵀᴹ Apr 23 '15 at 22:40 add a comment| Your Answer draft saved draft discarded Sign up or log in Sign up using Google Sign up using Facebook Sign up using Email and Password Post as a guest Name Email Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service. Not the answer you're looking for? Browse other questions tagged foreign-key sqlite or ask your own question. asked 1 year ago viewed 737 times active 1 year ago Related 2EAV-like table with both primary column point
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the workings and policies of this site About Us Learn more about sqlite unique Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each http://dba.stackexchange.com/questions/98706/cant-create-foreign-key-in-sqlite other. Join them; it only takes a minute: Sign up SQLite Foreign Key up vote 28 down vote favorite 10 I'm following the instructions from the SQLite documentation at http://www.sqlite.org/foreignkeys.html however my attempt to add a foreign key is failing. Here are my create statements: CREATE TABLE checklist ( _id INTEGER PRIMARY KEY AUTOINCREMENT, checklist_title TEXT, description TEXT, http://stackoverflow.com/questions/11545189/sqlite-foreign-key created_on INTEGER, modified_on INTEGER ); CREATE TABLE item ( _id INTEGER PRIMARY KEY AUTOINCREMENT, FOREIGN KEY(checklist_id) REFERENCES checklist(_id), item_text TEXT, item_hint TEXT, item_order INTEGER, created_on INTEGER, modified_on INTEGER ); The first table is made fine. The error occurs in the second statement. I have tried both with wrapping the two queries in a transaction and without. Here is the error: unknown column "checklist_id" in foreign key definition (code 1): , while compiling: CREATE TABLE item (_id INTEGER PRIMARY KEY AUTOINCREMENT, FOREIGN KEY(checklist_id) REFERENCES checklist(_id), item_text TEXT, item_hint TEXT, item_order INTEGER, created_on INTEGER, modified_on INTEGER) android sql sqlite foreign-key-relationship create-table share|improve this question asked Jul 18 '12 at 15:42 Geeks On Hugs 75111325 add a comment| 4 Answers 4 active oldest votes up vote 58 down vote accepted You still have to create the column before you add it as a Foreign key. So it would be: CREATE TABLE checklist ( _id INTEGER PRIMARY KEY AUTOINCREMENT, checklist_title TEXT, description TEXT, created_on INTEGER, modified_on INTEGER ); CREATE TABLE item ( _id INTEGER PRIMARY KEY A
here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of http://stackoverflow.com/questions/15243436/android-foreign-key-program-crashes this site About Us Learn more about Stack Overflow the company Business Learn more about hiring developers or posting ads with us Stack Overflow Questions Jobs Documentation Tags Users Badges Ask Question http://alvinalexander.com/android/sqlite-foreign-keys-example x Dismiss Join the Stack Overflow Community Stack Overflow is a community of 4.7 million programmers, just like you, helping each other. Join them; it only takes a minute: Sign up foreign key android foreign key. program crashes up vote 0 down vote favorite public static final String TABLE_TASKS = "tasks"; public static final String COLUMN_ID = "_id"; public static final String COLUMN_TASK = "task"; public static final String COLUMN_TIME = "time"; public static final String COLUMN_INITDATE = "initdate"; public static final String COLUMN_PRIORITY="priority"; public static final String TABLE_REPEAT = "alarms"; public static final String COLUMN_AID = android sqlite foreign "_aid"; public static final String COLUMN_TID = "tid"; public static final String COLUMN_DAYS= "days"; private static final String DATABASE1_CREATE = "create table " + TABLE_TASKS + "(" + COLUMN_ID + " integer primary key autoincrement, "+ COLUMN_TASK + " text not null, "+ COLUMN_TIME+" integer not null, "+ COLUMN_INITDATE+" integer not null, "+ COLUMN_PRIORITY +" integer );"; private static final String DATABASE2_CREATE = "create table " + TABLE_REPEAT + "(" + COLUMN_AID + " integer primary key autoincrement, "+ " FOREIGN KEY (" + COLUMN_TID + ") REFERENCES " + TABLE_TASKS + " ( " + COLUMN_ID + " ), "+ COLUMN_DAYS + " text not null );"; my logcat is as: 03-06 09:17:07.051: E/AndroidRuntime(1029): java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.habitator/com.example.habitator.Habitator}: android.database.sqlite.SQLiteException: unknown column "tid" in foreign key definition (code 1): , while compiling: create table alarms(_aid integer primary key autoincrement, FOREIGN KEY (tid) REFERENCES tasks ( _id ), days text not null ); pls help me find the error!! why doe my prgram crash?? android share|improve this question asked Mar 6 '13 at 9:28 AnRu 378 add a comment| 1 Answer 1 active oldest votes up
latex (26) linux/unix (289) mac os x (315) mysql (54) ooa/ood (11) perl (156) php (97) postgresql (17) programming (43) ruby (56) scala (640) sencha (23) servlets (10) technology (84) testing (13) uml (24) zen (47) SQLite foreign key examples By Alvin Alexander. Last updated: June 3 2016 SQLite foreign keys FAQ: Can you show me how to define foreign keys in a SQLite database table design? The SQLite database does support foreign keys, and its foreign key syntax is similar to other databases. Here’s a quick SQLite foreign key example. A SQLite foreign key example To show how this works, first define two database tables that don’t have any foreign keys: -- -- salespeople -- CREATE TABLE salespeople ( id INTEGER PRIMARY KEY, first_name TEXT NOT NULL, last_name TEXT NOT NULL, commission_rate REAL NOT NULL ); -- -- customers -- CREATE TABLE customers ( id INTEGER PRIMARY KEY, company_name TEXT NOT NULL, street_address TEXT NOT NULL, city TEXT NOT NULL, state TEXT NOT NULL, zip TEXT NOT NULL ); Next, define a SQLite table that has two foreign keys, one that relates a new orders table back to the customers table, and a second foreign key that relates the orders table back to the salespeople table: -- -- orders -- CREATE TABLE orders ( id INTEGER PRIMARY KEY, customer_id INTEGER, salesperson_id INTEGER, FOREIGN KEY(customer_id) REFERENCES customers(id), FOREIGN KEY(salesperson_id) REFERENCES salespeople(id) ); As you can see, the SQLite foreign key syntax is very similar to other databases. Sample SQLite foreign key data If you'd like to test this SQLite foreign key example in your own SQLite database, here's some sample data for each of these tables: -- -- salespeople sample data -- INSERT INTO salespeople VALUES (null, 'Fred', 'Flinstone', 10.0); INSERT INTO salespeople VALUES (null, 'Barney', 'Rubble', 10.0); -- -- customers sample data -- INSERT INTO customers VALUES (null, 'ACME, INC.', '101 Main Street', 'Anchorage', 'AK', '99501'); INSERT INTO customers VALUES (null, 'FOOBAR', '200 Foo Way', 'Louisville', 'KY', '40207'); -- -- orders sample data -- INSERT INTO orders VALUES (null, 1, 1); INSERT INTO orders VALUES (null, 2, 2); I just tested these SQLite foreign key examples on my system, using SQLite version 3.4.0, and they all work fine. android table sqlite schema foreign key database SQLite FAQ -