database-theory
3rd Normal Form on User Account Table, Salts, and Hashes
I understand the importance of salts, hashes and all that good stuff for passwords. My question relates to relational database theory.[详细]
2023-03-09 11:48 分类：问答Dependency Theory - Question
I have been trying for the past few hours to get this, 开发者_高级运维I have included below the only answer I have worked out that seems like it may go somewhere, can someone tell me if I am on the ri[详细]
2023-02-19 16:19 分类：问答Dependency Theory
Does anyone know of a good website, book or any other resources that would explain dependency theory well? I am stuck on a similar question to the one shown bel开发者_JAVA百科ow:[详细]
2023-02-17 16:47 分类：问答How do I implement MVCC?
I have located many resources on the web giving general overviews of MVCC (multi-version concurrency control) concepts, but no detailed technical references on exactly how it should work or be impleme[详细]
2023-02-14 08:45 分类：问答On the relationship of database tables to a pivot/junction table
In a database, one may create a many-to-many relationship between tables by creating a third table which maps the two together using foreign keys.What is the 开发者_StackOverflowrelationship between t[详细]
2023-01-14 15:30 分类：问答candidate keys from functional dependencies
Given the Relation R with attributes ABCDE. You are given the follow开发者_如何学编程ing dependencies: A -> B, BC -> E, and ED -> A. I already have the answer which is CDE, ACD, and BCD. I just need t[详细]
2022-12-28 01:52 分类：问答Multiple checkboxes with the same name in CakePHP
I am creating multiple checkboxes with the same name and I need to know how I can get the value of the array when I submit the form? I am using CakePHP[详细]
2022-12-24 00:01 分类：问答Using a user-defined type as a primary key
Suppose I have a system where I have metadata such as: table: ====== key name address ... Then suppose I have a user-defined type described as so:[详细]
2022-12-22 23:03 分类：问答How do I layout a form in WPF using grid or other controls for maintainability [closed]
Closed. This question needs to be more focused. It is not currently accepting answers. Want to improve this question? Update the question so it focuses on one problem only by editing this[详细]
2022-12-22 09:23 分类：问答SQL Query theory question - single-statement vs multi-statement queries
When I write SQL queries, I find myself often thinking that \"there\'s no way to do this with a single query\".When that happens I often turn to stored procedures or multi-statement table-valued funct[详细]
2022-12-15 20:06 分类：问答
![Interactive visualization of a graph in python [closed]](https://www.devze.com/res/2023/04-10/09/92d32fe8c0d22fb96bd6f6e8b7d1f457.gif)
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