I\'ve come up with two approaches to the same idea and would like to avoid any obvious pitfalls by using one over the other.I have a table (tbl_post) where a single row can have many relationships to
So what I have is something like this: main_table id | in_table | in_tables_id | points 1| t1| 1| 1 2| t2| 1| 4
I am in the middle of rewriting an MS Access database that currently is not normalized and is very poorly designed.My issue in this redesign is surrounding the way they move data from day to day betwe
The system rules: Departments can have 0 to many divisions. A division must belong to only one department.
I have a timestamp which updates when the row is updated in my main table. Many tables are linked to it via the ID Primary key. But I want this time stamp automatically updated whenever the other conn
There is going to be \"articles\" and \"tags\" in my App Engine application. And there are two techniques to implement that (thanks to Nick Johnson\'s article):
I have a PHP/MySQL application that stores \"开发者_开发技巧blank\" values in some cases as \'\' (empty strings) and in other cases as NULLs.
I have a data model that requires tracking changes.I could have as many ~100,000 changes/updates to my model per month.My model involves tracking HOW a task is completed and can be broken down into 3
I know this question has been asked and answered many times, and I\'ve spent a decent amount of time reading through the following questions:
I am trying to map a set of tables that have a compl开发者_JAVA百科icated relationship between them. I have the following tables with fields:
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