rdbms

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Dynamic Pivot on sql data

I have two tables as shown below The master Table IDkeyword_tags ----------- ---------------------------------------------[详细]

2023-01-26 02:37 分类：问答
What types of situations are suited to use both a relational and NoSQL database?

This is not a NoSQL vs. SQL type question. I am interested in types of scenarios where one can use a combination of a RDBMS and NoSQL database and the use of the combination is well suited. In general[详细]

2023-01-25 05:58 分类：问答
Why SQL can't infer tables dependencies when dropping multiple tables with constraints?

Greetings, It\'s a general SQL question not tied to any specific implementation but more on global concepts.[详细]

2023-01-24 15:12 分类：问答
NoSql vs Relational database

Recently NoSQL has gained immense popularity. What are the advantages 开发者_如何转开发of NoSQL over traditional RDBMS?Not all data is relational.For those situations, NoSQL can be helpful.[详细]

2023-01-24 10:57 分类：问答
When to use a covering index, a composite index, and unique columnar indexes

Let\'s say I have the following table in SQL Server 2008: ProfileIDint//identity; index: unique, primary key, clustered[详细]

2023-01-24 08:44 分类：问答
how to attach vehicles to my products in my database schema

I made a basic vehicles year/make/model/submodel database diagram here. I\'m having a hard time wrapping my 开发者_Python百科head around how I need to further set up my database so products know vehic[详细]

2023-01-24 07:50 分类：问答
SQL Compatibility Chart (esp data types)

So...happens I\'m working on some code which...will end up being used on different sql servers at the same time.[详细]

2023-01-24 07:41 分类：问答
Challenge!! Example of a valid 4th normal form relation that can perform 5th normal form decomposition

According to my professor in Intro. to Database Theory, th开发者_运维问答ere are NO examples in existence to show when this occasion would arise which seems a little bizarre considering its a specific[详细]

2023-01-23 22:35 分类：问答
When is MS Access better that a web app backed by RDBMS?

I haven\'t used Access since high school, years ago. What kind of problem does it solve well, or even better than a web app backed b开发者_StackOverflowy a real RDBMS?[详细]

2023-01-23 05:13 分类：问答
Pick another RDBMS [closed]

It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rheto开发者_StackOverflowrical andcannot be reasonably answered in its current[详细]

2023-01-22 20:56 分类：问答