Is PDO for SQL Server support query contain Link Server ? I try using mssql_connect but it didn't work. I have try PDO but it alwas return error on query() method.
I am using Castle ActiveRecord as my ORM. When I try to store unicode strings, I get question marks instead.
Saving unicode strings worked perfectly when I was using mysql, but when I recently switch to SQL Server it broke. How should I go about fixing this?
Hi,
I have recently discovered the tablediff utility of SQL Server 2005.
I have 2 instances of the same database each on a different server.
Is it possible to compare all tables using tablediff without having to replicate the same command while only changing the table name?
For example, compare table1 on server1 with table1 on server2 then compare table2 on server1 with table2 on server2, until all tables have been compared.
I'm doing a little digging and looking for a explanation on how SQL server evaluates MIN(Varchar).
I found this remark in BOL: MIN finds the lowest value in the collating sequence defined in the underlying database
So if I have a table that has one row with the following values:
Data
AA
AB
AC
Doing a SELECT MIN(DATA) would return back AA. I just want to understand the why behind this and understand the BOL a little better.
Thanks!
I have an application which intensively uses DB (SQL Server).
As it must have high performance I would like to know the fastest way to insert record into DB.Fastest from the standpoint of execution time.
What should I use ?
As I know the fastest way is to create stored procedure and to call it from code (ADO.NET).
Please let me know is there any better way or may be there are is some other practices to increase performance.
Any experiences on how to document Entity Framework 4 based Database projects?
There is the Document and Summary properties on the Entities, but if we want to regenerate the model from the database at some point, it will be lost!
Is there some way to map documentation data inside SQL to the Entities in the EDMX file so it is safe.
Suggestions of other best practices? Ideally I want to be able to augo generate html/helpfile documentation from the DB when we deploy.
Im using Native SQL from ABAP language. The query to get data is something like this
SELECT COUNT(ROWID)
FROM <SCHEMANAME>.<TABLENAME>;@<DATABASENAME>
INTO :localvariable
I want to somehow set the schemaname and database name as default so that i do not need to use them in the SELECTs later. Then i can only use the table name in the SELECT.
thanks !!
For Data Explorer I would like to add support for a Batch separator.
So for example if users type in:
select 'GO' go select 1 as go
Go
select 100
I would like to return the three result sets.
Its clear that I need some sort of parser here, my hope is that this is a solved problem and I can just plug it in. (writing a full T-SQL parser is not something I would like to do)
What component / demo code could achieve splitting this batch into its 3 parts?
I have an sql statement that returns this result below,and I want that the num will drag the latest(by date) num that is not null. I can't get it right.
I want to add somthing like this:
case
when num is null then max(num where date<my_date)
my result now:
Date num
1.1 0
2.1 1
3.1 NULL
4.1 NULL
5.1 4
what I want:
Date num
1.1 0
2.1 1
3.1 1
4.1 1
5.1 4
The following SQL query isn't working. I think the error is on the first line.
SELECT SUBSTRING(tbl_news.comment, 1, 250) as tbl_news.comment,
tbl_news.id, tbl_news.date, tbl_news.subject, tbl_users.username FROM tbl_news
INNER JOIN tbl_users ON tbl_news.creator = tbl_users.id
ORDER BY date DESC
hi!
I've a table(TableA) with contents like this:
Col1
-----
A
B
B
B
C
C
D
i want to remove just the duplicate values without using temporary table in Microsoft SQL Server. can anyone help me?
the final table should look like this:
Col1
-----
A
B
C
D
thanks :)
I have a SQL Server 2008 database with 300 tables. The application I have to design is an Windows Forms app, .NET 3.5, C#.
Which is the best way to work with LINQ2SQL ?
I intend to make a datacontext for each business entity.
Is there any problem ?
I need to know if this way of working with LINQ has any disadvantage or can create performance issues ?
Thanks.
Hi,
I'm trying to do some work with my SQL table.
I have 2 buildings with room numbers 1 - 100 in building 1 and 101 - 199 in building 2.
I have a location field (which I've just created) and want to run a query to populate it with either 'Building 1' or 'Building 2' depending on which room number it has in the 'Room' field.
Many thanks for your help.
Regards
Scott
I have been playing around with creation of pdf documents for a project that I'm working on. I would like to store the generated pdf document in a SQL database and then later be able to retrieve this pdf as well.
What are some suggestions for doing this? Can the document be stored in the database without physically creating the document on the server?
I have the following table...
TABLE: Accounts
ID (int, PK, Identity)
AccountType (int, PK)
Username (varchar)
Password (varchar)
I have created a composite key out of ID and AccountType columns so that people can have the same username/password but different AccountTypes.
Does this mean that for each foreign table that I try and link to I'll have to create two columns?
I’m using SQL Server 2008
I have a table called Categories which contains category_Id and parent_category_Id, so each category can has a child and the child can has a child and so on (it is dynamic).
So if i have category A and category A has child B and child B has child C and child C has child D. I want to get all the child tree of A using SQL so when I give this query the id of A its result will be the ids of A's child which is B,C & D.....any ideas.
Thanks in regards,
I am trying to compare a series of strings like the following
rodeo rodas
carrot crate
GLX GLX 1.1
GLX glxs
the comparision need not be case sensitive
i am trying to write a sql where i am updating the first string with the second string if they match approximately. Here except the second string all the other examples match. I would like to write a query which updates the strings except the second one.
is this possible directly in a query in ACCESS
thanks
My database has to store all the available departments in my company.
Some departments are sub-departments on another existing department. I've decided to solve this like this:
Departments
ID Description HeadOfDepartment ParentDepartment
ParentDepartment can be null, indicating it is a root department. If it has a parent I'll act accordingly, my question is how can I code this in Microsoft SQL?
In my 2nd ASP.NET MVC project I'm facing a very weird problem: when I call the SubmitChanges method of the DataContext class, nothing updates in the database. It's weird because everything works fine with my first project.
I'm using a remote database created in Sql Server Management Studio, I tried doing some queries there and in Visual Studio 2010 (where I have the connection to the database), they all work.
Where might the problem be hidden?
is it possible to retrieve by using connection.getschema() the description item from a sql server table column, just like it's possible to retrieve the column name, data type, is nullable, column default value, etc?
I have the following Transact SQL query using a union.
I need some pointers as to how this would look in LINQ i.e some examples
wouldbe nice or if anyone can recommend a good tutorial on UNIONS in linq.
select top 10 Barcode, sum(ItemDiscountUnion.AmountTaken) from
(SELECT d.Barcode,SUM(AmountTaken) AmountTaken
FROM [Aggregation].[dbo].[DiscountPromotion] d
GROUP BY d.Barcode
UNION ALL
SELECT i.Barcode,SUM(AmountTaken) AmountTaken
FROM [Aggregation].[dbo].ItemSaleTransaction i
group by i.Barcode) ItemDiscountUnion
group by Barcode
I want to batch insert multiple records in sql server database using ADO.NET command/sqldataadapter and get identity value generated for all the rows in a single database trip.
What are my options?
So i need to figure out how i can get a record count value and use that count as a new value to insert into a table.
Ex: In My Stored Procedure
@Count int
What im looking for
@Count to equal "select top (1) _fieldName from _someTable order by _fieldName Desc"
Finally
insert into _newTable (_fieldName) values (@Count)
End
I dont have to use a variable, just trying to demonstrate what im really trying to do. My SQL knowledge is pretty limited so no laughing, or smirking! ;)
Hi. I'm new to SQL Server Compact edition. I'm using Compact edition 3.5. I tried renaming the table. But, I couldn't do that through the following query.
alter table tablename to newname
Plz, someone help me.........