Questions tagged [feature-comparison]
Examining a capability of something to determine its functionality, pros, and cons with respect to a similar alternative.
25
questions
23
votes
6answers
32k views
Does SQL Server support GREATEST and LEAST, if not what is the common workaround?
Reviewing this question it seems like that's a lot of work that shouldn't be needed. They're trying to extend a range with a date. In other databases, you would just use greatest and least..
least(...
-1
votes
1answer
484 views
why are NoSQL databases better suitable for container platforms (cloud)?
In the article from Linux-Magazin 04/2017 Relationale Datenbanken als Container (sorry German and paywall) there is written in conclusion that NoSQL DBs are better suitable for containers than the "...
-1
votes
2answers
111 views
DBA responsibilities: should they include suggesting a database engine for a new project? [closed]
I need your opinion on a subject.
I have been working as DBA for a short time and I have been asked by the Project Manager which database engine I recommend for a new critical project. The options ...
2
votes
1answer
973 views
Does SQL Server have a reference partitioning equivalent?
Oracle 11g has introduced a new feature that is called Reference Partition.
Using reference partitioning, a child table can inherit the partitioning characteristics from a parent table.
http://www....
3
votes
0answers
353 views
Why is dynamic pivoting not supported?
TL;DR What is the reason that in 2013 we still can't define a VIEW that displays some pivoted data with a dynamic column set.
TL;DR/2 Is pivoting data a denormalization technique?
First: Not going ...
4
votes
1answer
5k views
Using Solr/Lucene for searching non-text tables?
I am creating a web application to retrieve subsets of one large (4m rows) table. The 4m rows only change once a year. The table has 200+ columns of types boolean and numeric. It has no text columns.
...
1
vote
2answers
505 views
What are the alternatives for prefixed indexes in Oracle?
You can create an index and define prefix length, so the index will store only first starting symbols from each of column value. It looks like this in MySQL:
CREATE INDEX table_idx ON emp(last_name(8)...
12
votes
5answers
16k views
SQL Server equivalent to functionality of Oracle RAC? [closed]
I did some Googling and couldn't find an answer to this question more recent than a few years ago, so I thought I'd ask. Oracle's RAC feature offers load-balancing for both read and write transactions,...
2
votes
1answer
3k views
What are the differences between Cognos and SPSS modeler products?
My school wants to start doing some data mining, and probably go with an IBM product. I've done a fair amount of searching, but the differences between the two products seem cloudy to those of us who ...
3
votes
2answers
214 views
How can I mimic functionality of SQL Server `TYPE` in Oracle?
I apologize if question title is vague, but I was not able to formulate it better. What I'd like to have is an alternative to TSQL CREATE TYPE, so I can use it in column definition.
For instance, I ...
10
votes
3answers
7k views
Where can I find example databases for MySQL, SQL Server and Oracle?
I want to experiment with the 3 large database management systems.
For this purpose it would be cool to have the same database (the same tables, etc.) for each of those.
Where can I find sql scripts ...
15
votes
3answers
10k views
PostgreSQL vs. MySQL: spatial feature comparison
We are the in the process of building out a web application that has a spatial data component. In the beginning our spatial data comparisons will take a given point and return matched overlapping ...
5
votes
2answers
651 views
Learning Oracle, does it matter if I install 10g or 11g?
I'm taking a class in Databases, they're using Oracle 10g in class, but I'm having some trouble installing the database here in Windows 8 (auth problems), so I thought I'd attempt 11g.
Is 11g ...
13
votes
5answers
3k views
What features of Oracle make it an attractive choice for small projects?
Given Oracle's licensing handling[a] (and, to a lesser extent, cost) I have always been wondering what the deciding factors would be for choosing Oracle over PostgreSQL or MySQL.
My company is nearly ...
7
votes
2answers
438 views
In Oracle, can we restore a database onto the same instance with a different name?
In SQL server I can restore a database onto the same instance with a different name. Eg: If there is a database DB_prod, I can take a full backup and restore it on the same instance with a different ...
17
votes
6answers
4k views
Redgate SQL Compare vs Visual Studio 2010 Premium/Ultimate database project
I currently use the Visual Studio Professional Edition which has the database project as a project template, but some of its features are not available, for example Schema Compare tool. The schema ...
7
votes
5answers
5k views
How different are the top DB vendor's SQL (DML-) dialects from each other?
Does someone who has worked extensibly SQL-wise with at least two top DB products (such as Oracle, SQL Server, Informix, Sybase, DB2, Teradata) know how different the DB vendor's SQL dialects are from ...
21
votes
4answers
4k views
Why won't some DBMS's allow rollback for certain DDL statements?
Recently I found out that MySQL doesn't support rollback of DDL such as "alter table"... Being used to PostgreSQL, that struck me as odd, but a friend of mine told me that even Oracle doesn't allow it....
4
votes
1answer
179 views
Oracle setup required for heavy-ish load
I am trying to make a comparison between a system setup using Hadoop and HBase and achieving the same using Oracle DB as back end. I lack knowledge on the Oracle side of things so come to a fair ...
11
votes
3answers
230 views
Are there any database engines which will intuit the join condition based on the existing foreign keys?
It seems strange to me that, when I've defined a foreign key, the engine cannot use this information to automatically figure out the correct JOIN expressions, but instead requires me to re-type the ...
6
votes
6answers
511 views
Which database engines will allow me to GRANT/REVOKE on a specific column?
If I have a table with a single column of sensitive data, and I want to grant broad use of the table without exposing that one column, I know that I can create a VIEW that gives them access to all the ...
18
votes
3answers
10k views
What other databases have a feature similar to Oracle's Flashback Query?
I am interested to know what other databases have features similar to Oracle's Flashback Query. It would seem that any database that supports MVCC could have the feature, but which do? SO has this ...
24
votes
3answers
14k views
Mnesia: advantages and differences
What are the advantages of Mnesia over major SQL database implementations and how it differs to them?
Can I use the database to hold really huge amounts of data without noticeable performance ...
89
votes
9answers
81k views
When to use NULL and when to use an empty string?
I'm interested mainly in MySQL and PostgreSQL, but you could answer the following in general:
Is there a logical scenario in which it would be useful to distinguish an empty string from NULL?
What ...
16
votes
4answers
7k views
Traversing tree-like data in a relational database using SQL
Is there a way to traverse tree data in SQL? I know about connect by in Oracle, but is there another way to do this in other SQL implementations? I'm asking because using connect by is easier than ...
