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Published on 2010-04-18T21:10:17Z
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Does it make sense to use UUID as primary key in MySQL?
What would be pros and cons of using UUID instead of regular INT, beside trouble of hand querying?
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I tried everything till now:
sudo apt-get remove mysql-server mysql-client mysql-common
sudo apt-get purge mysql-server mysql-client mysql-common
sudo apt-get autoremove
and even more commands...
But whenever I am trying to locate mysql. I get a no. of files related to mysql
command:
shell>>…
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Mysql was started:
/usr/bin/mysqld_safe --datadir=/srv/mysql/myDB --log-error=/srv/mysql/logs/mysqld-myDB.log --pid-file=/srv/mysql/pids/mysqld-myDB.pid --user=mysql --socket=/srv/mysql/sockets/mysql-myDB.sock --port=3700
but when I'm trying to do something:
ERROR 1548 (HY000) at line 1: Cannot…
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A client of my IT-consulting service owns a web-development shop. He's been having problems with a Slackware 12.0 server running MySQL 5.0.67. The machine was set up by the client's sysadmin, who left on bad terms. My client no longer employs a sysadmin.
As far as I can tell, the only copy of MySQL…
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Can't start mysql with:
sudo /usr/bin/mysqld_safe --datadir=/srv/mysql/myDB --log-error=/srv/mysql/logs/mysqld-myDB.log --pid-file=/srv/mysql/pids/mysqld-myDB.pid --user=mysql --socket=/srv/mysql/sockets/mysql-myDB.sock --port=3700
120222 13:40:48 mysqld_safe Starting mysqld daemon with databases…
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MySQL is one of the most popular database language and I have been recently working with it a lot. Data have no barrier and every database have their own place. I have been working with MySQL for quite a while and just like SQL Server, I often find lots of people asking me if I have a tutorial which…
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Primary key attractiveness
I have a boss(and also users) that wants primary key to be sophisticated/smart/attractive control number(sort of like Social Security number, or credit card number format)
I just padded the primary key(in Views) with zeroes to appease their desire to make the control number…
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Can a compound key be set as a primary key to another table?
For instance i have the tables:
Books -with Primary Key:Product_ID
Client -with Primary key: Client_ID
Clients_Books -with Compound Primary Key:Product_Id and Client_ID
I want to set this compound Primary key from Clients_Books as…
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I have two Oracle questions.
How can I set the primary key of a table when the table is made up of an object type? e.g.
CREATE TABLE object_names OF object_type
I have created a Varray type,
CREATE TYPE MULTI_TAG AS VARRAY(10) OF VARCHAR(10);
but when I try to do
SELECT p.tags…
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Hey guys, my goal is create an EntityManager using properties dependent on which database is in use. I've seen something like this done in all my Google searches(I made the code more basic for the purpose of this question):
@PersistenceUnit
private EntityManagerFactory emf;
private EntityManager…
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I have a existing parent-child relationship I am trying to map in Fluent Nhibernate:
[RatingCollection] -- [Rating]
Rating Collection has:
ID (database generated ID)
Code
Name
Rating has:
ID (database generated id)
Rating Collection ID
Code
Name
I have been trying to figure out which permutation…
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