Hi
Is Entity Framework worth moving to for a new small app? About 10 tables and a WinForms app.
ie the alternative being DataTables/DataRows or Linq-to-SQL
Need to create a php file so I can send data to an sql server and get data from the server. There must also be a json support because I am doing this for an iphone app. Could you please help me and give me a source code example.
Thanks in advance.
We have some JPA entity classes which are currently under development and wouldn't want them as part of the testing cycle. We tried commenting out the relevant entity classes in META-INF\persistence.xml but the hbm2ddl reverse engineering tool still seems to generate SQL for those entities. How do I tell my code to ignore these classes? Are there any annotations for these or should I have to comment out the @Entity annotation along with my changes in persistence.xml file.
Hi,
Is it possible to return a single value and an enumerable collection using LINQ to SQL?
The problem is, I'm trying to do paging across a large recordset. I only want to return 10 rows at a time so I'm using .Skip(20).Take(10) approach.
However I need to know the total number of records so I can show an appropriate page x of y.
Trying to avoid two separate queries.
Thanks
I have an sql table with data like this:
| theDate (datetime) | theValue (int) |
----------------------------------------
| 2010-05-17 02:21:10 | 5 |
| 2009-03-12 04:11:35 | 23 |
| 2010-02-19 18:16:53 | 52 |
| 2008-07-07 22:54:11 | 30 |
The dates are stored in UTC format in a datetime column, how can I convert them to local time (Norway)? Remember that the UTC-offset is not the same all year because of winter/summer-time.
I updated a table in my MS SQL Server 2008 by accident, I was updating a table from another by copying cell by cell, but I have overwritten the original table. Is there a way that I can restore my table contents as it was?
I am created a website using visual studio 2010. On the time of the development of website I am able to access the database.. but after publishing the site using IIS7..i was unable to access the database..the exception occured during that time was "the connection is in the closed state".in IIS7 When I changed the application pool identity to localsystem, it worked.
Data base is installed in the same machine. and server is SQL SERVER 2008 R2
I'm writing java application that is using both SQLite and MySQL using JDBC.
Are there any differences in SQL for those databases? Can I use same queries for both SQLite and MySQL, or is there any db specific stuff, that doesn't work on the other one?
As far I've worked only with MySQL, so I don't really know much about SQLite.
There are three tables in my db ITEM_MASTER, PRICE_MASTER, COMP_MASTER
ITEM_MASTER
STORE_CODE ITEM_CODE ITEM_DESC
011 914004 desccc
PRICE_MASTER
STORE_CODE ITEM_CODE COMP_CODE
011 914004 01
011 914004 02
011 914004 03
011 914004 04
COMP_MASTER
COMP_CODE COMP_DESC STORE_CODE
01 comp1 011
02 comp2 011
03 comp3 011
04 comp4 011
I want to get all these for an ITEM_CODE in single query
STORE_CODE ITEM_CODE ITEM_DESC COMP_DESC1 COMP_DESC2 COMP_DESC3 COMP_DESC4
011 914004 desccc comp1 comp2 comp3 comp4
How can i write a oracle SQL query for this??
Can't figure this one out... when I execute a select query it shows an explain plan cost of ~4500 and takes ~3 seconds to return. When I wrap that query (no changes) inside of:
select count(*) from (
/*query here*/
)
It times out. It's at 5 minutes and counting now.
I tried this in SQL Developer and Aqua Data Studio -- same results.
I would like to associate 2 entities using hibernate annotations with a custom join clause. The clause is on the usual FK/PK equality, but also where the FK is null. In SQL this would be something like:
join b on a.id = b.a_id or b.a_id is null
From what I have read I should use the @WhereJoinTable annotation on the owner entity, but I'm puzzled about how I specify this condition...especially the first part of it - referring to the joining entity's id.
Does anyone have an example?
There's a table like this one
______________________
| id | title | order |
|----------------------|
| 1 | test1 | 1 |
|-----|--------|-------|
| 2 | test2 | 2 |
|-----|--------|-------|
| 3 | test3 | 3 |
|-----|--------|-------|
| 4 | test4 | 4 |
'----------------------'
when i introduce in my mysql shell a single update to a row
$sql UPDATE `table` SET order=1 WHERE id=3;
And then procedure or method resamples order column in the before update lower values to get its order renewed like this
______________________
| id | title | order |
|----------------------|
| 1 | test1 | 2 |
|-----|--------|-------|
| 2 | test2 | 3 |
|-----|--------|-------|
| 3 | test3 | 1 |
|-----|--------|-------|
| 4 | test4 | 4 |
'----------------------'
Any help would be appreciated, thanks!
When I rename a table column in Designer mode in SQL Server Management Studio 2008 (both R2 and non-R2) and generate a change script it looks like this:
EXECUTE sp_rename N'table.column', N'Tmp_columnNew', 'COLUMN'
GO
EXECUTE sp_rename N'table.Tmp_columnNew', N'columnNew', 'COLUMN'
GO
What for temporary column name is used? Why don't rename at once?
Hi
How Can I Import Data From a Table in Sql Server CE To Excel?
I Try This From Excel But I Can Not Find an Item for This In Excel
Please Help Me To This
Planning to buy a laptop(reasonable budget).
I want to know the basic requirement to run VS2010 and SQL Server 2008 smoothly with Adobe Photoshop CS4 and Dreamweaver CS4 in Windows 7 Home.
Can Pentium Processor do the job?
If not please Suggest me.
Thank you.
So i have a SQL table setup as such
CREATE TABLE IF NOT EXISTS `points` (
`id` int(11) NOT NULL auto_increment,
`lat` float(10,6) NOT NULL,
`lng` float(10,6) NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=MyISAM;
And im inserting stuff like
INSERT INTO `points` (`lat`, `lng`) VALUES ('89.123456','-12.123456');
Gives me a row with lat and lng being 89.123459 and -12.123455
Whats up?
I have
byte[] a = HashEncrypt("a");
with
public byte[] HashEncrypt(string password)
{
SHA512Managed sha = new SHA512Managed();
byte[] hash = sha.ComputeHash(UnicodeEncoding.Unicode.GetBytes(password));
return hash;
}
I want to save byte[] a to my database. My database field is a varbinary(64). I'm using SQL Server 2008. I want to know the insert query with C# code.
I am using ADO.NET
I have a column with comma separated values like 6,7,99.3334. I need write a PL SQL procedure that will give me these values separately. The Length of the column is 40.
Can anyone help me with this?
Should I invest a lot of time trying to figure out an ORM style implementation, or is it still common to just stick with standard SQL queries in python/pylons/sqlalchemy?
Does anyone use the PL/SQL Web Toolkit at all? We use it for internal reporting where I work.
However, does anyone have any experiences of it for producing client-facing websites? General advantages/disadvantages compared to other web languages, such as JSP, PHP etc
Is this how hashed password stored in mssql should look like?
This is function I use to hash password (I found it in some tutorial)
public string EncryptPassword(string password)
{
//we use codepage 1252 because that is what sql server uses
byte[] pwdBytes = Encoding.GetEncoding(1252).GetBytes(password);
byte[] hashBytes = System.Security.Cryptography.MD5.Create().ComputeHash(pwdBytes);
return Encoding.GetEncoding(1252).GetString(hashBytes);
}
Thanks,
Ile
I have a large table (300 million lines) that I would like to dump to a csv - I need to do some processing that cannot be done with SQL. Right now I am using Squirrel as a client, and it does not apparently deal very well with large datasets - at least as far as I can tell from my own (limited) experience. If I run the query on the actual host, will it use less memory? Thanks for any help.
I have a table foo and a table bar, where each foo might have a bar (and a bar might belong to multiple foos).
Now I need to select all foos with a bar. My sql looks like this
SELECT * FROM foo f WHERE [...] AND ($param IS NULL OR
(SELECT ((COUNT(*))>0) FROM bar b WHERE f.bar = b.id))
with $param being replaced at runtime.
The question is: Will the subquery be executed even if param is null, or will the dbms optimize the subquery out?
Hi,
I have a StreamReader object that I initialized with a stream, now I want to save this stream to disk (the stream may be a gif or jpg or pdf etc).
SO my code so far is:
StreamReader sr = new StreamReader(myOtherObject.InputStream);
I need to save this to disk (I have the filename).
In the future I may want to store this to sqlserver
I have the encoding type also, which I will need if I store it to sql server right?