I have a closed-source software written in C#/.NET from a VoIP company which is impossible to customize and wanted to create custom front-end using PHP. I gained access to the database and now see how
What I wish to do is ensure that the foreign key relation is maintained in the database schema but for performance reasons, not enforce the constrain or incur any indexing overheads. It\'s purpose is
I have two tables: Defect and DefectData. Each Defect may or may not have one or many DefectData. As such DefectData has a DefectId column as a foreign-key.
I have three tables: zip_code_data |zipCodeId| primary key |zipCode| indexed |other columns...| location_data
Suppose I have a table \"nodes\" where I store a tree. Each node has a primary key id and a column parent_id.
I have a requirement to copy the tables from one DB to another . The table names (to be used in the application) are configured in the XML file.
I\'m developing an application in Zend Framework to handle the rentals for a commercial property rental company.The company has multiple buildings which each have multiple floors, which each have mult
Here is my models.py: class Player(models.Model): name = models.Char开发者_运维问答Field(max_length=100)
I am trying to delete a few records but am getting the following error: Cannot delete or update a parent row: a foreign key constraint fails
I\'m coming from a C# entity framework background and looking at JPA in a Java project so I\'m hoping that what I\'m facing is just a conceptual problem.
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