referential-integrity

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Does SQLite coupled with NHibernate support referential integrity / foreign keys?

I have been reading a bit about NHibernate with SQLite, figuring it might be a very good option when I need lightweight database handling.[详细]

2023-02-20 11:05 分类：问答
How to reference other tables in check constraints?

I have a table, ProductSupportArticles: ProductSupportArticleID int NOT NULL <primary key> ParentArticleID int NULL[详细]

2023-02-18 19:55 分类：问答
Declarative integrity constraint between rows without pivot

Merged with Declarative integrity constraint between rows without pivot. I have a situation like the following join table:[详细]

2023-02-18 16:51 分类：问答
Proper foreign keys for MS SQL Server 2005 without UNIQUE constraints?

I have two tables (MS SQL Server 2005) with an existing application (no DB alterations other than indexes, etc are allowed).[详细]

2023-02-13 11:36 分类：问答
MySQL relationships & constraints, should I use them?

I\'ve built a large database in MySQL and created all the relationships between the tables with SQLYog. That\'s all well and good but in my PHP site that I\'m building I often have trouble when it com[详细]

2023-02-13 03:25 分类：问答
Should I enforce business logic through database errors?

There\'s an interesting design decision I\'ve been thinking about lately. Let\'s say I\'m adding usernames to a table, and I want to make sure there are no duplicates. The username column is NOT NULL[详细]

2023-02-11 17:33 分类：问答
In MySQL, can I defer referential integrity checks until commit

As in this question, I\'ve been re开发者_开发知识库ading PoEAA and wondering if it\'s possible to defer referential integrity checks until commit in MySQL.[详细]

2023-02-11 00:13 分类：问答
Tools, rules or processes for checking internal consistency of XML config files

I\'ve worked on projects that have very complex XML configuration, and one problem that\'s faced is maintaining the internal consistency of the XML.[详细]

2023-01-30 05:21 分类：问答
What does this mean -> "Specify the SQL statement that would define the table, AND maintain referential integrity?"

Just looking through some past papers prior to my SQL exam and came across this gem, can someone please explain what is being asked here as it is confusing me. I don\'t really understand what is being[详细]

2023-01-30 03:54 分类：问答
In MySQL, with FKs what's "CONSTRAINT" do?

I\'ve looked at the MySQL 5.1 docs, and still can\'t figured this out -- that being I noticed a difference betwee开发者_运维知识库n the code I input into MySQL and output code by the system.[详细]

2023-01-29 06:28 分类：问答