Database design is the process of specifying the logical and/or physical parts of a database. The goal of database design is to make a representation of some "universe of discourse" - the types of facts, business rules and other requirements that the database is intended to model.
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Database design: nested tagging
I have a situation that after an initial thought ended in the following tables:
section: id, name
section_tag: id, name
section_tag_map: section_id, section_tag_id
item: id, ...
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Help with modeling this table
Thanks for reading my post...I'm new at setting up databases and am working on a simple practice app.
I have a table called PhoneNumbers, which hold a list of phone numbers (duh). I have two other ...
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Relational vs Non-Relational Database for Events Database
I'm trying to find out whether an SQL or no-SQL solution would be better for creating an events database. I'm creating a ticketing system, similar to ticket master. I know that for either ...
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Why use separate databases for high traffic/volume tables?
While looking at the database structure of an application I am using I recognized that it uses 3 different databases on the same SQL Server instance for different things.
The first one contains the ...
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In regards to GS1 barcode - what size DB field are used?
In regards to GS1 barcode - what size DB field is used or is the entire GS1 typically not stored in database, but rather processed in the application layer and stored in the database as a collection ...
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4answers
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Unsure how to implement certain constraints and relations in this relational database schema
I am in the middle of designing the dB for school project- airline ticketing database.(Using MySQL workbench)
So far, I came up with the following design:
Here are couple things I can't figure out: ...
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41 views
Should I create an enumeration or individual flags?
I'm creating a new database table which will be used to store pictures of products. I'd like to identify the product "type" represented in the picture. Say we have 3 general categories for all the ...
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2answers
65 views
Unique Constraint with multiple null columns
I have two tables
PC(Id,EmpName Not NULL, PCName NULL, HostName NULL,.... PhysicalLocation NULL, PCType Not NULL)
PCNetwork(Id, EmpName Not NULL, PCName NULL, HostName ...
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30 views
Referencing multiple tables from a single table and store additional data
I have a database where I want to store lap time information from a racing game. I have tables for car, track, game, tuning and upgrade data and want to put all these together to create a single ...
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30 views
MySQL database schema design help needed
I am developing a PHP application expecting millions of records both parent and children. My goal is to design an optimized database design to achieve high speed and performance.
This application ...
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1answer
76 views
Approach for a 2,000 table migration
What might be the best approach when converting or migrating a database containing over 2,000 tables? Where would you begin to tackle such an issue? Steps to take in the first weeks of designing? ...
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63 views
database design- diagrams
I'm trying to derive an Entity Relation diagram from a class diagram.
In the class diagram, I have a class Player with one to many relationship to another class Payment. In Payment there is no ...
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507 views
Database design: Dividing multiple identical tables, good or bad?
I am very new at SQL and databases in general. I only use them for the occasional homework so I haven't even tried to master them.
I have seats at a theater, the seats are divided into 4 main areas ...
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Database design: Dividing multiple identical tables, good or bad? [duplicate]
I am very new at SQL and databases in general. I only use them for the occasional homework so I haven't even tried to master them.
I have seats at a theater, the seats are divided into 4 main areas ...
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1answer
48 views
Db design for historical option data (~200GB)
I need some help determining how to best design my tables. I have about 200GB worth of data I wish to place in a table (historical option price data). The table looks something like:
String symbol
...