referential-integrity

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First database with referential integrity constraints -- suggestions, feedback, errors?

TARGET_RDBMS: MySQL-5.X-InnoDB (\"X\" equals current stable release) BACKGROUND: Building my first database with true referential integrity constraints, in an effort to get feedback, after creating t[详细]

2023-01-28 13:23 分类：问答
In MySQL, how do I load multiple tables from a single table while keeping referential integrity?

UPDATE: \"Setting foreign_key_checksto 1 does not trigger a scan of the existing table data. Therefore, rows added to the table while foreign_key_checks = 0 will not be verified for consistency.\" SOU[详细]

2023-01-24 04:15 分类：问答
Compound foreign key with nullable column

In the following table, is there a way to ensure PreviousID always references an ID in a row with a matching ParentID, or, if ParentID is null, it is also null in the referenced row?[详细]

2023-01-20 11:11 分类：问答
Finding data that's missing from the database

I need to figure out some clever MySQL snippet that will allow me to easily see two tables, the ids in the table if they exist or NULL or empty if they don\'t exist.[详细]

2023-01-18 02:30 分类：问答
Check for referential integrity break

In my process, I do something like: SET FOREIGN_KEY_CHECKS = 0; LOAD DATA INFILE \'/path/to/mytable.txt\' INTO TABLE mytable;[详细]

2023-01-16 16:11 分类：问答
Single column/primary key only table for referential integrity?

Maybe i\'m going about this wrong but my working开发者_Python百科 on a database design for one of my projects.[详细]

2023-01-16 11:42 分类：问答
referential integrity in XML files without globally unique IDs

Maybe I\'m not seeing the forest for the trees, but here it goes: I\'m \"designing\" an XML document and have so far come up with something like the following:[详细]

2023-01-15 12:57 分类：问答
Should referential integrity be enforced?

One of the reasons why referential integrity should not be enforced is performance. Because Db has to validate all updates against relationships, it just makes things slower but what are the other pro[详细]

2023-01-12 21:10 分类：问答
referential integrity in rails

So, I just came across the fact that rails does not support referential integrity regarding foreign keys and was fairly surprised. So, what\'s the best way to manage this? Is there a \"rails\" way for[详细]

2023-01-11 05:24 分类：问答
Zend Framework - Problem with Database Table Recursive Cascading Deletes

My situation may be a bit abnormal, but I have foreign keys defined in my MySQL database, while enforcing referential integrity in the Zend_Db_Table classes.The tables use theInnoDB storage engine.[详细]

2023-01-02 23:28 分类：问答