Hi
I have developed application using HTML 5 Localstorage.
How can I create a TABLE and populate 10000+ rows before initializing my
HTML 5 enabled application.
Please suggest a pattern.
Using hibernate with annotations, i want a one-many relationship to be sorted by the 'created' field on the 'many' table.
So far i've got this, which always ends up in a random order:
// The notes
@OneToMany
@JoinColumn(name="task_id")
Set<TaskNote> notes;
public Set<TaskNote> getNotes() {return notes;}
public void setNotes(Set<TaskNote> notes) {this.notes = notes;}
== Schema Information
Schema version: 20110111000403
#
Table name: places
#
id :integer not null, primary key
name :string(255)
latitude :float
longitude :float
a place can be defined by latitude and longitude or by name
#
class Place < ActiveRecord::Base
validates_precence_of :name, :if = lat_long_not_def?
def lat_long_not_def?
latitude.blank? || longitude.blank?
end
end
I have a large number of rows that I would like to copy, but I need to change one field.
I can select the rows that I want to copy:
select * from Table where Event_ID = "120"
Now I want to copy all those rows and create new rows while setting the Event_ID to 155. How can I accomplish this?
Hello,
Recently I needed to generate a huge HTML page containing a report with several thousand row table. And, obviously, I did not want to build the whole HTML (or the underlying tree) in memory. As result, I built the page with the old good string interpolation, but I do not like the solution.
Thus, I wonder whether there are Python templating engines that can yield resulting page content by parts.
Hi
I have set the background of my UITable with a custom image.
self.tableView.backgroundColor = [UIColor clearColor];
self.tableView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"background.png"]];
The problem im having is the background image is scrolling and doesn't look good at the top and bottom of the screen where you see the image being joined.
Is there a way to fix the position of the background image and just have the table scroll over the top of it?
Hi, I've recently done a migration from a really old version of some application to the current version and i faced some problems while migrating databases.
I need a query that could help me to compare columns in two tables. I mean not the data in rows, I need to compare the columns itself to figure out, what changes in table structure I've missed.
I need to find the amount of updated rows
UPDATE Table SET value=2 WHERE value2=1
declare @aaa int
set @aaa = @@ROWCOUNT
It doesn't work. How can I do that?
Hi ,
i have employee table and its empid length is INT 3 ,
But it accepting more then 3 character ....
How it is possible
(THIS IS TESTED IN PHPMYADMIN)
SHOW TABLE STATUS LIKE 'foo' returns Data_length - size of all data, and Index_length - size of all indexes. What's the best way to get per-column and per-index breakdown?
I know in asp.net 1.0 the grid display controls would pull all the data in, and then provide paging but the paging was done in memory.
Are there any smarter controls that provide paging where they only pull the data relevent to current page being displayed?
ie. select 10 rows for the current page, instead of doing a select of ALL the rows in the table.
Hi,
I would like to select a random line in my database. I saw this solution on a website:
SELECT column FROM table
ORDER BY RAND()
LIMIT 1
This SQL query run but someone said me that it was a non performant query. Is there another solution ?
Thx
I have a MySQL query which gets including some vars like that:
messages TABLE receiver cols
user1 rows : 1,3,5
user2 rows : 2,3
user3 rows : 1,4
I want to get rows which includes '3' value. So I will get 'user1' and 'user2'.
I tried that but naturally it doesn't work.
mysql_query("SELECT * FROM messages WHERE receiver='3'");
How can I do this?
I am using mysql stored procedure; I need to assign query retuned value to local variable.
And i have to check the condition using the local variable.....
or
It my query
Select Meterial_Id from hemaepdb.transaction where CustId=1;
Instead of Meterial_Id i need to get the Meterial_name from Material table.....
I am doing a query with three tables, the problem was one table has many occurrences of id of another.
sample data:
users: id
answers:
id:1
user_answer :1
id:1
user_answer :2
id:1
user_answer :3
Questions:
id:1
answers :answer description
id:2
answers :answer description
id:3
answers :answer description
How can I get all user information and all answer and its description, I used GROUP by user.id but it only returns only one answer.
I want to return something like this list all of users answer:
Name Q1 Q2
USERNAME ans1,ans2 ans1,ans2 comma separated description of answer here
According to this: http://code.google.com/appengine/docs/whatisgoogleappengine.html
it seems that GAE only uses Datastore to store data, which is equivalent with Table service on Windows Azure Platform.
Does anyone know that which RDBMS it uses? or such thing exists or not?
How is the scope of a variable/identifier maintained in the symbol table of a c/c++ compiler.
Please suggest some good links and books to know the how compiling process of c/c++
program is implemented for better understanding.
Hi,
I have added 1000 records into DataTable using C#.Net. This data table contains TimeStamp column for specified data stored time. Data stored into 10.00AM to 11.00AM every 10 seconds once. Here i want to featch only 10.15AM to 10.30AM records using C#.
Thanks
what is the difference between the symfony "myUser" and doctrine model "User"?
where should i put the methods for an user?
eg. $user-createThread(), $user-deleteThread() and so on
should $user be an instance of the doctrine model User (cause i have a table called User) or the myUser that extends sfBasicSecurityUser?
thanks!
I have many entities (Customers, prospects,...)
I have one entity called Notes, which can handle notes for Customers,prospects...
The Notes table is then:
Id
Parent_Id
Parent_Type
Note
How to handle this with Entity Framework ?
Thanks
Joghn
Simplified table structure (the tables can't be merged at this time):
TableA:
dts_received (datetime)
dts_completed (datetime)
task_a (varchar)
TableB:
dts_started (datetime)
task_b (varchar)
What I would like to do is determine how long a task took to complete.
The join parameter would be something like
ON task_a = task_b AND dts_completed < dts_started
The issue is that there may be multiple date-times that occur after the dts_completed.
How do I create a join that only returns the first tableB-datetime that occurs after the tableA-datetime?
I'm building a simple calendar for holiday cottages to show when they are booked or available.
What would be the fastest mysql table design for this, bearing in mind when users mark dates as available/booked they will do so via a start date and an end date.
i can see 2 obvious options
Store 'booked' data for every day [more rows]
or, store 'booked' data with 2 columns a start_date and end_date [more processing?]
Which is best or is there another method i'm missing?
I have a mysq query which gets including some vars like that:
messages TABLE receiver cols
user1 rows : 1,3,5
user2 rows : 2,3
user3 rows : 1,4
I want to get rows which includes '3' value. So I will get 'user1' and 'user2'.
I tried that but naturally it doesn't work.
mysql_query("SELECT * FROM messages WHERE receiver='3'");
How can I do this?
I'm a PHP noob.
I have a database that I will update weekly with a CSV. So far I've managed to upload the file to the server, open the file with PHP, and insert the data in my table.
Now I want to return the unique records that were added (on screen or in a file). How do I do this?