foreign key constraint naming scheme - Stack Overflow
What is a standard naming scheme to use for foreign key constraints? Given these tables task (id, userid, title) note (id, taskid, userid, note); user (id, name) where Tasks have Notes, Tasks are ...
List of foreign keys and the tables they reference in Oracle DB
Mar 19, 2019 · I'm trying to find a query which will return me a list of the foreign keys for a table and the tables and columns they reference. I am half way there with SELECT a.table_name, …
How can I list all foreign keys referencing a given table in SQL …
Jan 27, 2009 · I need to remove a highly referenced table in a SQL Server database. How can I get a list of all the foreign key constraints I will need to remove in order to drop the table? (SQL …
Como adicionar uma foreign key em uma tabela já criada
Jan 30, 2016 · Sou iniciante em mysql e não consigo adicionar uma fk em uma tabela que criei. Tenho duas tabelas (pessoa, objeto) e desejo criar uma 'fk_pessoa' em objeto que receba o …
What is a proper naming convention for MySQL FKs?
Feb 10, 2010 · The reason for creating a symbolic name is for referencing when you want/need to drop the constraint. Oracle & SQL Server allow you to disable specific constraints. If you don't …
How to find foreign key dependencies in SQL Server?
May 29, 2009 · How can I find all of the foreign key dependencies on a particular column? What are the different alternatives (graphically in SSMS, queries/views in SQL Server, 3rd party …
How to create a foreign key in phpmyadmin - Stack Overflow
Jun 3, 2016 · Thank you Alok! great answer I am new to using php so this is a great help - If I opt to create the foreign key using an sql statement - ` ALTER TABLE Patient ADD CONSTRAINT …
Does a foreign key automatically create an index?
An FK-relationship will often need to look up a relating table and extract certain rows based on a single value or a range of values. So it makes good sense to index any columns involved in an …
Differences between "foreign key" and "constraint foreign key"
Sep 29, 2012 · I mean for example I can create table like create table XTable ( idt int not null primary key, value nvarchar(50), idq int, constraint fk_idq foreign key(idq) references …
sql server - Cannot truncate table because it is being referenced …
Oct 31, 2008 · Remove the FK, truncate the table, and recreate the FK. I thought that as long as I truncated the child table before the parent, I'd be okay without doing either of the options …