How can I get ALL the data from a table of my DB (mySQL) using hibernate, and store the output into List of Objects?
I'll use this List, to populate a JTable.
Hi,
I was wondering if this is possible.
The serialize-string will be inserted in a mySQL-database, so it would be fine if all checkboxes would be inserted and not only the ones that is ticked(on).
it's possible to make on column in the database for each of the checkboxes, and use this if/else-statement:
if(isset($_GET['checkbox'])) {
// It's checked!
}
else {
// not checked!
}
but its a bit unappropriate...
Is there a function for MySQL that will count the number of times a string occurs in another string or column? Basically I want:
SELECT
SUB_COUNT('my word', `my_column`) AS `match_count`
FROM `table`
Thanks!
We have a main mysql database which all of the applications within our organization need the data within this database. How can I config my java web application to use this database with it's specific database when I use Spring and Hibernate within my application? How can I config JPA annotations for example between CONTRACT table within my database and COUNTRY table within our main database? what's the best practice to do this?
Hi,
I want an open source/free tool which can test the schema, data, user defined functions, views and stored procedures between two different databases or two different versions of the databases. I am using MySQL database.
Currently I am using DB Solo which is a 30 day trail version.
Thanks in advance.
I am trying to extract unix timestamp from mysql and convert it to ISO8601 timestamp. I need it in order to format date into facebook-like(or stack-overflow-like:) '30 minutes ago' instead of displaying the exact date and time. Has anyone dealt with it?
Hello,
I my software I need the client to install a database server (MySQL in my case). I'm deploying the setup and making user install it like a pre-requisite.
After installing the DBMS server. I need to setup databases (that I created) on the client machine. How to do this automatically (as part of installation.)?
I have a mysql database of users that can login to my site and view content. I would like to block a couple of directories from certain users. What is the best way to do this.
Currently when a user logs in a cookie is created with their customer id and the customer is is used to display their content.
How would I block entire directories from my users???
It seems that if you have many tables, you can only perform a MySQLDump without locking them all, otherwise you can an error.
What are the side effects of performing a MySQLDump without locking all the tables; Is the DB snapshot I get this way, consistent? Do I have any other alternative for getting a backup of a MySQL DB with many tables?
I have two IIS servers and two MySQL servers. On all servers I have some available memory (More than a GB). What is the standard way to deploy memcached?
Should I add a new server especially for memcached, or should I use my existing servers? If so, which servers?
Thanks in advance
Hi,
I have an SQL table like this : sales(product,timestamp)
I want to display a chart using Open Flash Chart but i don't know how to get the total sales per hour within the last 12 hours. ( the timestamp column is the sale date )
By example i will end up with an array like this : array(12,5,8,6,10,35,7,23,4,5,2,16) every number is the total sales in each hour.
Note: i want to use php or only mysql for this.
Thanks
When using a SQL join, is it possible to keep only rows that have a single row for the left table?
For example:
select * from A, B where A.id = B.a_id;
a1 b1
a2 b1
a2 b2
In this case, I want to remove all except the first row, where a single row from A matched exactly 1 row from B.
I'm using MySQL.
How can I pass the result from a scalar [single row, single value] query to coalesce? I am trying to pick the priority as (the biggest priority so far in the table) + 1. [0 if it is the first row.]
create trigger priority_SuperRuleSamples before insert on SuperRuleSamples
FOR EACH ROW
SET NEW.Priority=coalesce(NEW.Priority,
coalesce(
select Priority from SuperRuleSamples order by Priority desc limit 1,
-1
)+1
)
Hello there,
I have a website where documents are saved in xml documents, all with the same structure.
I need a search engine where I am able to choose documents with the highest relevance according to the key words given by a searching user.
I thought it could (?) be a good idea to have one using XQuery rather than having the information stored twice (in XML docs + mysql database) and querying the mysql database for relevance searches.
Is XQuery any good for this, and how, and what speed can I expect on +1000 documents of about 7kb each.
Thank you for your time.
Kind regards
Hi there ,
i always asked myself. Why are there so many DB management systems?
I am not an DB expert and i never thought about using another DB than mysql.
Programming languages offer different paradigms, so there it makes sense to choose a specific language for your purpose.
What are factors to choose a specific DB management system ?
Hi
in mysql how to write a sql like this, to get the amount of X 20 and <20
select date, numberOfXMoreThan20,numberOfXLessThan20, otherValues
from table
group by (date, X20 and X<20)
thanks
following the answer here, altho it solved my problem, it displays a blank table. .something like this. the data does get inserted in the mysql but the table displays nothing.
the codes are posted on the above link.
your help would be appreciated. thanks!
I am using CakePHP for a price-comparison website.
I have a table products with fields: id, pride_regular, price_action.
I would like to combine the fields price_regular and price_action into a dynamic field: price. The lowest value of these two fields should be the value of the new price field. Also I want to order on it Ascending.
Should I use a custom MySQL-query?
Is it possible to install PHP, MySQL, Apache individually on Solaris instead of installing them through a webstack? What are the advantages and disadvantages?
I seem to frequently get a CURL error on Solaris when dealing with HTTPS sites. (error:81072080:lib(129):func(114):reason(128). I have no clue why that error is occuring and thought it might solve it, if I upgrade to latest PHP,MySQL,Apache versions. At this point I am not even sure if it's a Solaris issue.
Any advice?
Thanks
$extension = “SUBSTRING_INDEX(domain_name, ‘.’, -1)”;
$this->db->order_by($extension, “asc”);
It says:
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near ‘asc LIMIT 50’ at line 44
But its working when I didn’t used the $this-db-order_by Active Record Class
such as this one:
$this-db-query(“SELECT * FROM domain ORDER BY SUBSTRING_INDEX(domain_name, ‘.’, -1)”);
Anyone please help me. Thanks.
I am using Django with MySql. I have a CharField with max length of 64 as the 2nd to last column, and a Boolean as the last column. Will reversing the order of these provide better optimization of space?
I have a jQueryUI slider on my website that deals with price range.
I have a products table in mysql that has various entries.
I am using the slider to filter the results, but I need to set the minimum and maximum prices from the records in my database.
Should I just generate (with php) hidden fields in my html that contain the minimum and maximum and then use jQuery to obtain them? Or is there a better way of achieving this, maybe using AJAX?
Thanks
I have a email address like [email protected] and [email protected][email protected] ... etc
I want a Mysql select query so that it would trim user names and .com an returns output as
gmail,ymail,hotmail etc
Dear Folks,
I am trying to sort string column (containing numbers).
// SELECT `name` FROM `mytable` ORDER BY `name` ASC
+----------+
+-- name --+
+----------+
+-- a 1 ---+
+-- a 12 --+
+-- a 2 ---+
+-- a 3 ---+
You see natural sorting algorithm of Mysql is placing a 12 after a 1 (which is ok for most apps), But I have unique needs, so I want result should be sorted like this.
+----------+
+-- name --+
+----------+
+-- a 1 ---+
+-- a 2 ---+
+-- a 3 ---+
+-- a 12 --+
Is it possible with just SQL, or I have to manipulate result-set at application level?
Thanks for reading...