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Showing posts with the label Relational Database

Multiple Relations Parent/child With Multiple Levels

I have a MySQL table named companies like this: +---------+-----------+-----------+ | id_comp | com… Read more Multiple Relations Parent/child With Multiple Levels

Table Vs Xml / Json / Yaml - Table Requires Less Storage If Data Is Any Related? More Efficient Than Compression

To add a field to a XML object it takes the length of the fieldname + 3 characters (or 7 when neste… Read more Table Vs Xml / Json / Yaml - Table Requires Less Storage If Data Is Any Related? More Efficient Than Compression

Removing Mirrored Pairs From Sql Join

I have a table with 2 fields (name, interest) and I want to find all pairs that have the same inter… Read more Removing Mirrored Pairs From Sql Join

How To Set 1 To 0...1 Relationship In Sql Server Management Studio

I have tables: Users{UserId ...} Professors{UserId ...} I set UserId to be PK in both tables and m… Read more How To Set 1 To 0...1 Relationship In Sql Server Management Studio

What Are The Options For Storing Hierarchical Data In A Relational Database?

Good Overviews Generally speaking, you're making a decision between fast read times (for exampl… Read more What Are The Options For Storing Hierarchical Data In A Relational Database?

Sql Database Structure For Like And Dislike

I am new to web programming and need some expert advise. I am using SQL database for one of my webs… Read more Sql Database Structure For Like And Dislike

Sql Server - Inserted Table

I am checking the output of the inserted / deleted table using the following trigger, how can I pas… Read more Sql Server - Inserted Table

Database Design For Quiz With Different Languages

I'm trying to make a quiz that supports multiple languages. I have made the database schema for… Read more Database Design For Quiz With Different Languages