database

Solr autocommit and autooptimize?

I will be uploading my website to a VPS soon. It is a classifieds website which uses Solr integrated with MySql. Solr is updated whenever a new classified is put or deleted. I need a way to make the commit() and optimize() be automated, for example once every 3 hours or so. How can I do this? (Details Please) When is it ideal to optim...

Oracle Database introduction and literature

Hi folks, got an new assignment covering Oracle databases. My problem now is that I am completely new to the Oracle system and never worked with it before. I need to develop a concept covering the installation and configuration of the server. Afterwards I need to migrate the old server to the new while ensuring date consistence. I just...

please help with adding on users to my sql server 2008 database

hi please help i have a sharepoint site with sql connection i am able to view the info on the page but other sharepoint users in the company cant how can i add them on as users to my database? , my connection string on my page is as follows : con = new SqlConnection("server=srvgmssapqas;database=hrportal2;Trusted_Connectio...

Is there any online free movie information api's?

For music there is the Gracenote CDDB SDK, etc. but does an online service exist for getting information about movies? The only solution i can see at the minute is querying IMDB and scraping the page. The problem i have is that i have a list of film titles and i want to retrieve stuff like the plot, director, cast, when released, get d...

select more rows as a column

I have a MySQL issue i want to have the result of the next query into a var and use it to update into the trigger i am trying to get the names comma separated The query returns more then one row SELECT t.naam FROM trefwoorden t INNER JOIN organisaties_has_trefwoorden AS o ON (t.id_trefwoorden = o.id_trefwoorden) WHERE o.id_organ...

Does this query fetch unnecessary information? Should I change the query?

I have this classifieds website, and I have about 7 tables in MySql where all data is stored. I have one main table, called "classifieds". In the classifieds table, there is a column called classified_id. This is not the PK, or a key whatsoever. It is just a number which is used for me to JOIN table records together. Ex: classifieds ...

Data Type Conversion from SQL Server to Oracle

I am currently moving a product from SQL Server to Oracle. I am semi-familiar with SQL Server and know nothing about Oracle, so I apologize if the mere presence of this question offends anyone. Inferring from this page, http://download.oracle.com/docs/cd/E12151_01/doc.150/e12156/ss_oracle_compared.htm, it would seem that the data type c...

Codeigniter: how to track activity w/o using multiple db rows?

I need to track the completion of tasks for users. I started by having a row called "first_login", "profile_complete", "other_thing_complete", etc... I'd like to combine these all into one row "activity_state". I just don't know how to properly store data in this field, and how to retrieve it. What kind of field should it be, and how...

MS Access 07 - Q re lookup column vs many-to-many; Q re checkboxes in many-to-many forms

Hello, I'm creating a database with Access. This is just a test database, similar to my requirements, so I can get my skills up before creating one for work. I've created a database for a fictional school as this is a good playground and rich data (many students have many subjects have many teachers, etc). Question 1 What is the differ...

INSERT INTO ... SELECT ... vs dumping/loading a file in MySQL

What are the implications of using a INSERT INTO foo ... SELECT FROM bar JOIN baz ... style insert statement versus using the same SELECT statement to dump (bar, baz) to a file, and then insert into foo by loading the file? In my messing around, I haven't seen a huge difference. I would assume the former would use more memory, but the m...

MYSQL multiple insert in codeigniter

Hi everyone, I know about the possibility of making a multiple insert in mySQL by doing something like this: foreach ($array as $manuf) { $sql[] = '("'.mysql_real_escape_string($manuf['name']).'", "'.$manuf['lang'].'", "'.$mId.'")'; } $this->db->query('INSERT INTO manufacturers (name, lang ,mid) VALUES ' . impl...

What database to use with Ruby on Rails, based on actual Hosting services ?

Hello ! I've been looking for hosting services and I still don't know what kind of database is the most commom. It seems to be MySql and PostgreSql. So, I'm not sure about how much traffic and data my website will have (it's just a project), but I would like to be prepared. I've worked in some projects with Oracle (PL/SQL) and I know s...

Foreign Key Relationships and "belongs to many"

edit - Based on the responses below, I'm going to revisit my design. I think I can avoid this mess by being a little bit more clever with how I set out my business objects and rules. Thanks everyone for your help! -- I have the following model: S belongs to T T has many S A,B,C,D,E (etc) have 1 T each, so the T should belong to each...

How do I design this link table?

Ok SO, I have a user table and want to define groups of users together. The best solution I have for this is to create three database tables as follows: UserTable user_id user_name UserGroupLink group_id member_id GroupInfo group_id group_name This method keeps the member and group information separate. This is just my way of...

Need Insight - What is the best practice for syncing up a production database that will be used on a live site? CakePHP, Mysql

I have a site set up using CakePHP and MySQL and I want to work on a test database without disrupting my live site in case something goes wrong. I have another busy site, but my test site runs off the live database which can be occasionally nerve wracking. What do I do if I change a table name in the test db and I want it changed in th...

Prevent two users from editing the same data

Hi everyone, I have seen a feature in different web applications including Wordpress (not sure?) that warns a user if he/she opens an article/post/page/whatever from the database, while someone else is editing the same data simultaneously. I would like to implement the same feature in my own application and I have given this a bit of t...

How do I query for this in Django?

| random_code | varchar(200) | YES | UNI | NULL | | MyTable.objects.filter(random_code = None) Is this correct? Will this SELECT where there is no random code set? Above is my table. ...

Fastest way to modify a decimal-keyed table in MySQL?

I am dealing with a MySQL table here that is keyed in a somewhat unfortunate way. Instead of using an auto increment table as a key, it uses a column of decimals to preserve order (presumably so its not too difficult to insert new rows while preserving a primary key and order). Before I go through and redo this table to something more s...

How to process database writes asynchronously (maybe with a message queue) from Django?

After a user submitted data to my app, I'd like to write to the database asynchronously, possibly through a message queue. How do I set up such a system? Are there any pluggable Django apps that do such message queue-based database writes? Also how do i handle errors that happens during the async processing? Would really appreciate an...

Yahoo Query Language Problem

Hello everybody! Today, I've started with Yahoo Query Language. I would use it to retrive stocks details, so I'm talking about Yahoo Finance. I think there is a bug on this language. This is my query: select * from yahoo.finance.quoteslist where symbol='@^GSPC' I ALWAYS get 51 results! it's impossible, take a look at: http://...