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
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
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?
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??
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!
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.
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
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
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?
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?
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?
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?
So this my first question here, let's look how it works.
I'm working on a project, which has to to provide a "Native XML WebService" on a SQL Server 2005. The web service and the WSDL generation works fine. But there are troubles with the authentication.
Is it possible to turn the authentication off (The tests and the documentation by Microsoft say no.)?
And if so how?
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.
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?
I want to query like this:
select * from table where concat(',', ServiceCodes, ',') like '%,33,%';
select * from table where (','||ServiceCodes||',') like '%,33,%';
so, I wrote this code:
ICriteria cri = NHibernateSessionReader.CreateCriteria(typeof(ConfigTemplateList));
cri.Add(Restrictions.Like(Projections.SqlFunction("concat", NHibernateUtil.String, Projections.Property("ServiceCodes")), "%,33,%"));
I get sql similar :
select * from table where (ServiceCodes) like '%,33,%';
But it is not what I want,how to do it???
thanks!
I have a asp:GridView with a HyperLinkField. It's DataNavigateUrlFormatString property is set to View.aspx?id={0}&isTechnical={1}
Select command of appropriate SqlDataSource returns columns of type INT and BYTE (from SQL Server 2008).
So displayed string becomes something like View.aspx?id=1&isTechnical=1. But I want to display isTechnical=true|False, i.e. Convert.ToBoolean(row["isTechnical"]).ToString().ToLowerInvariant().
How to implement such conversion in page markup?
We have a requirement to log IP address information of all users who use a certain web application based on JEE 5. What would be an appropriate sql data type for storing IPv4 or IPv6 addressses in the following supported databases (h2, mysql, oracle). There is also a need to filter activity from certain IP addresses. Should I just treat the representation as a string field (say varchar(32) to hold ipv4, ipv6 addresses)
I have a single MYSQL Question and need help ASAP.
Database:
Email | Name | Tag
[email protected] |Test Person | TagOne
[email protected] |Test Person | Tag Two
Need an SQL query that will return
Email | Name | Tag
[email protected] |Test Person | TagOne, Tag Two
Any help?