Tagged Questions
1
vote
4answers
125 views
Daily and Differential Backups
Is there a program with which I can create daily MySQL, PostgreSQL and MariaDB backups with these requirements:
The first time, make a full backup.
The second time, only the changes since the last ...
0
votes
0answers
36 views
Backup daily for MySQL, MariaDB or PostgreSQL [duplicate]
Good day:
I wonder if there is a program with which I can create daily backups with these requirements:
The first time, make a full backup.
The second time, only the changes since the last backup, ...
1
vote
4answers
111 views
Database design - People and Organisations
Databases are not my primary skill and I am finding I need some assistance please.
The software we are building has "Customers".
The Customer could either be a Person or an Organisation.
I really ...
0
votes
0answers
65 views
Performance difference between MySQL and PostgreSQL for the same schema/queries
I'm a newbie DBA, and I have experience in Microsoft SQL Server but I want to jump to FLOSS.
I'm starting a company, and we develop an app (PHP) with a Postgres backend, and we did some tests ...
1
vote
1answer
47 views
Equivalent of MRG_MYISAM in databases other than MySQL? [closed]
Does anyone know if other database have something equivalent to MRG_MYISAM (aka the MERGE table type/storage engine)?
I know about fragmenting, but this is not quite the same AFAIK. We're using ...
0
votes
1answer
96 views
Object-oriented programming CRUD design pattern
At first I have posted this question at http://cstheory.stackexchange.com/questions/17170/object-oriented-programming-crud-design-pattern - that's because I think it's a subect question, and it can ...
1
vote
0answers
22 views
MySQL Federated acces to PostgreSQL table
For example 2 DBases:
DBMS Postgresql
DBMS MySQL
In each DB include one DB and one table in it. Can I work with table in PostgreSQL through MySQL?
Is it possible to link as federated postgresql ...
0
votes
0answers
112 views
Achieve PostgreSQL hstore functionality in MySQL
Please suggest any MySQL 5.5+ Engine that can support collection of key-value pairs be stored in any column of a table.
I don't know if this feature is available out of the box in MySQL like ...
0
votes
1answer
90 views
multi-master to single-slave replication at table level with PostgreSQL or MySQL
Here is my scenario
Master1 hosting DB1
Master2 hosting DB2
...
MasterN hosting DBN
replicate to:
Slave1 hosting DB1,DB2... DBN
I've read similar questions and they recommend to start different ...
4
votes
1answer
210 views
Is PostgreSQL replication production ready?
How does PostgreSQL native replication compare to MySQL?
I know asynchronous replication has been supported for longer than sync, which is recent. Is synchronous reliable to be used in real projects?
...
1
vote
1answer
156 views
Efficient query plan for selecting all data duplicated on several columns
The flavour in question is PostgreSQL, but it is a generic enough query pattern that your techniques for optimising against other RDBMs should help as well.
The purpose of the query is to show all ...
1
vote
1answer
161 views
Which Database to choose: MySQL or Oracle
I have an application generating time series data (32 channels, 22KHz, 6 secs) once a minute. These have to be stored in a database. At the moment I'm using MySQL with InnoDB tables ...
0
votes
1answer
154 views
Storing 5TB web server access log vs OLAP DB
We have over 5TB compressed web server log in a HDFS and we often analyse using Hadoop.
It is painful to run map reduce on 5TB of data and most importantly, not many developer are familiar with it.
...
0
votes
2answers
138 views
Why do people use MySQL while it has no INTERSECT? [closed]
I see that PostgreSQL is being developed, for example it has INTERSECT and JSON types. Why MySQL is not being developed? Why people use MySQL over PostgreSQL. What I'm missing?
3
votes
1answer
119 views
Do isolation levels only apply to SELECTS and not UPDATES? [closed]
Scenario that might demonstrate different behavior for SELECTS depending on the isolation level:
1) 0:00 Thread A runs a query that returns 1000 rows that takes 5 minutes to complete
2) 0:02 Thread B ...
