I know you can do bulk XML inserts into SQL Server 2005 tables from your C# code using datasets/datatables.
Is it possible to do the same but as a delete?
Hi,
I have a table that looks like this:
----------------------
| DateTime | Value |
----------------------
| 2010-01-01 | 26 |
| 2010-02-01 | 24 |
| 2010-03-01 | 23 |
| 2010-04-01 | 28 |
| 2010-05-01 | 30 |
I need to find if the last three consecutive months have increased in value.
How can I get SQL to check whether the value for each has increased?
If anyone can give me any pointers for solving this problem it would be greatly appreciated!
Thanks
thanks for yout time helping on this ;)
I'm new to SQL and wish to solve somethign in just one query and i dont know how to do it.-
Basically I've a table of products, a table of users and a table of comments, linked by products.id - comments.pid and user.id - comments.uid ,
i wish to know what is the best practice to create just 1 query and get all products with child comments, including username.
Hi
If I have text sotred in my DB, for example:
"There are 2 books on the table".
Maybe the user wants to search for "books" or the user wants to search in this text for any thing.
What is the best SQL Statement to do that?.
Thanks in advance.
I have some doubt as follows
We are UPDATING a field in SQL and ALTER the row also.After giving the COMMIT command the system is crashed.Wat will happen to the commands given,whether it will UPDATE and ALTER the table r not?
Hi. I'm trying to pivot some data in SQL Server 2000, but the user that runs the application only have read/write permissions. I've looked the solutions posted here, but all involving create/destroy temporary tables.
I have a form into which the visitor can enter data, and I want to store this data in a mysql database via the $_POST variable. What do I need to prevent sql injection?
Hi I need some sample MS SQL Employee database with data such as id, surname, name, age, adress etc. It must be quite big, I search with google, but I don't find any good sample.
Can any body help ?
I have aSQL table it has more than 1000000 rows, and I need to select with the query as you can see below:
SELECT DISTINCT TOP (200) COUNT(1) AS COUNT, KEYWORD
FROM QUERIES WITH(NOLOCK)
WHERE KEYWORD LIKE '%Something%'
GROUP BY KEYWORD ORDER BY 'COUNT' DESC
Could you please tell me how can I optimize it to speed up the execution process? Thank you for useful answers.
I know a little about SQL injections and URL decode, but can someone who's more of an expert than me on this matter take a look at the following string and tell me what exactly it's trying to do?
Some kid from Beijing a couple weeks ago tried a number of injections like the one below.
%27%20and%20char(124)%2Buser%2Bchar(124)=0%20and%20%27%27=%27
I have a question regarding the Sql Joins.
whenever we join two different tables on some fields.
what will happen exactly inside oracle which will result in the query output.
will there be a temporary table created just for presenting the query output.
I'm working on a mock exam paper at the moment, however I have no set of correct answers and I'm not sure what the correct answer of this SQL query is.
Given a table:
foo, bar
a , 1
b , 3
a , 2
c , 1
and the query:
SELECT foo, sum(bar)
FROM table
GROUP BY foo
The two ways I can see this going are either:
a 3
a 3
b 3
c 1
or
a 3
b 3
c 1
Thanks.
Is it possible to do something like this:
INSERT INTO table(col1, col2) VALUES(something_from_another_table, value);
With something_from_another_table being aSQL command? Like, is there something I can do that's equivelant to:
INSERT INTO table(col1, col2) VALUES((SELECT value FROM table2 WHERE id = 3), value);
Hi,
what is index in sql can u explain or any reference to understand clearly. where should i use the index. I search in stackoverflow but it is not clear for me. thank you
Hi,
I want to translate LINQ expression tree to SQL statement and I don't want to write my own code for this.
Example:
var query = from c in Customers
where c.Country == "UK" &&
c.City == "London"
select c);
To
SELECT ... FROM Customers AS c WHERE c.Country = "UK" AND c.City = "London"
I know DataContext.Log, but I want to use:
query.ToSqlStatementString()
Thanks
Hey, I've just finished writing a VB.NET application. Now I want to package the executable and the database ofcourse into a single installer file. I tried using QSetup, InstallShield to make SQL Server embedded into the setup file, and finally after hours of try&fail I have no idea. Anyone?
How would one go about converting this into a UDF? I'll pass the product_id to the UDF.
Running SQL 2k5
SELECT
sum(qty) as qty,
product_id
FROM vProductQuantity
WHERE
product_id = @product_id
GROUP BY product_id
hi
i have 4000 records, and i need to pick randomize 500 records.
i need that 500 records will insert to GoodTable
and the rest 3500 records will insert to BadTable
how to do it using sql-server 2008 query ?
thank's in advance
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
How to find out the last date and timestamp of schema updation in SQL Server database. I could locate the database created and last back up date from properties. But, couldn't find the last schema updated date. Is there a way to find this out?
Is there any way showing the detailed exception for String or binary data would be truncated.
I use LINQ to SQL and i cant figure out which column is that!?
Tried numerous things but i get the same meaningless error i got from within Visual Studio.
Also I use .NET 3.5 SP1, but errors are still returned useless.
Hello,
We have observed that there seems to be a maximum number of ids/variables which one can pass in the IN clause of SQL as comma seperated values. To avoid this we are storing all the ids in a table and doing a SELECT within the IN clause. This however means extra database operations to store and retrieve ids. Is there any other way to use IN without SELECT?
regards
Sameer