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• Oracle: How to update master with newest row from detail table?

  - by LukLed

  We have two tables: Vehicle: Id, RegistrationNumber, LastAllocationUserName, LastAllocationDate, LastAllocationId Allocations: Id, VehicleId, UserName, Date What is the most efficient (easiest) way to update every row in Vehicle table with newest allocation? In SQL Server I would use UPDATE FROM and join every Vehicle with newest Allocation. Oracle doesn't have UPDATE FROM. How do you do it in Oracle?

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• ASP.Net (C#) & MSQL -or- PHP & MySQL for Performance?

  - by Mike Curry

  Money, Staff, Skill and preference to open source or commercial is neutral. Lets take the best of the best programmers (for arguments sake) and think about this: What will perform better overall: PHP & MySQL or ASP.Net & Microsoft SQL (I don't want biased answers, just looking for Performance, and Speed).

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• How to create a temporary table in Oracle

  - by GigaPr

  Hi I would like to create a temporary table in a Oracle database something like Declare table @table (int id) In SQL server And than populate it with a select statement Is it possible? Thanks

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• select xml data column into flat reporting table

  - by Bernard

  We have a xml column in SQL Server 2008. We need to do reporting off the data in the xml so we're going to select the xml into a flat table. The flat table has columns that correspond to various nodes in the xml. What is the best way to do this using SSIS? Is this a good approach? Or should we just try and write the reports directly off the xml column?

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• Im at a lost what to read and study! Db Design or Code Complete?

  - by ajushi

  I've been a PHP programmer for 3 years. I really want to improve myself and I think reading more helps but I'm confused where to concentrate next. I have two choices, read more about DB design and advanced SQL or should I read Code Complete fully?

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• Get ms sqlserver 2008 managament studio icons

  - by alex

  I want to get icons from sql server management studio 2008. Is it free ? If so where can I download it ? maybe some pirate copy ?

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• LINQ Option Missing in Data Source for Grid View

  - by stringo0

  Hi, I don't see a LINQ option when picking a data source for a grid view - any ideas? I just upgraded to Visual Web Developer 2010. I see the other options like SQL etc. Thanks!

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• Best Embedded SQL DB for write performance?

  - by max.minimus

  Has anybody done any benchmarking/evaluation of the popular open-source embedded SQL DBs for performance, particularly write performance? I've some 1:1 comparisons for sqlite, Firebird Embedded, Derby and HSQLDB (others I am missing?) but no across the board comparisons... Also, I'd be interested in the overall developer experience for any of these (for a Java app).

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• Openquery - unable to begin a distrubuted transaction

  - by dc2

  I am trying to use open query to run a stored procedure in a remote database, and insert it into a table in my local database: -- this works exec remotesvr.sys.dbo.golden_table 'some', 'parameters' While the above works out, I try the following: insert into my_local_table exec remotesvr.sys.dbo.golden_table 'some', 'parameters' I get a SQL error to the effect of 'unable to begin a distributed transaction'. Is there any way around this?, i.e. can I execute take the results of a remote stored procedure and put its contents in a local table?

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• Inserting a null value into the database.

  - by J Harley

  Good Morning, Say I have an insert statement: Insert INTO tblTest (fieldOne,FieldTwo,fieldThree) VALUES ('valueOne','valueTwo','null') This statement doesn't seem to want to insert a null value into the database... I have also tried to insert the word "nothing". Has anyone any ideas how to make this work? I am using SQL server 2005.

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• Maximum capabilities of MySQL

  - by cdated

  How do I know when a project is just to big for MySQL and I should use something with a better reputation for scalability? Is there a max database size for MySQL before degradation of performance occurs? What factors contribute to MySQL not being a viable option compared to a commercial DBMS like Oracle or SQL Server?

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• Which is better: Ad hoc queries, or stored procedures?

  - by Will

  Assuming you can't use Linq for whatever reason, is it a better practice to place your queries in stored procedures, or is it just as good a practice to execute ad hoc queries against the database (say, Sql Server for argument's sake)?

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• Linking database column to dropdown control in ASP.Net

  - by kunal

  I am using c# with asp.net and SQL Server 2005 as backend. I want to use dropdown list control in a form to populate a textbox. The dropdown control is linked to a column in the database. How can I code this in c#?

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• best encryption method sql server asp.net c#

  - by mazhar kaunain baig

  What is the most standard encryption technique used in sql server for asp.net c# enterprise level application? . i am talking with respect to standards like md5 or sh1 etc, hashing

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• Option To AutoFormat Query Syntax in SSMS 2005 or 2008?

  - by dragon77

  In TOAD (for SQL or Oracle), there is a simple AUTOFORMAT button that will nicely format your query - I couldn't find that option in SSMS 2005, but was advised by a co-worker that it was available in SSMS 2008. I am unable to locate the option there either. This is VERY helpful when pasting a query from another source. Thanks for any assistance.

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• Excel : sum of values depending of other values

  - by gregseth

  Hi, What would be the equivalent Excel formula of this SQL query SELECT SUM(a) FROM table WHERE b < 0; A B ---- ---- 1 0 2 -1 3 4 5 -3 >> 7

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• What is this query means?

  - by zihado

  I'm reading a book about SQL. In that book, I saw strange query below: "SELECT * into mycustomer from customer WHERE 1=2" In this query, what is "WHERE 1=2" ? Thanks in advance.

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• How to connect to a database from VC++/CLI .NET 4.0

  - by abatishchev

  How to connect to a database (any natively supported by .NET) - SQL Server 2008 or Access - from a Windows Forms application written on VC++/CLI (compiler ver. 16.0 from .NET 4.0)

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• How to manipulate sql connection string in C#

  - by Liveonthree

  Hi i'm trying to manipulate the sql connection string so instead of running the original copy of our database it runs from the copy one folder up in our C# project.

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• Refreshing data in a java.sql.ResultSet

  - by llm

  I have a java.sql.ResultSet object containg data from a query that was run. How do I refresh the data in the ResultSet to reflect the current data in the database? Thanks!

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• In mysql or postgres, is there a limit to the size of an IN (1,2,n) statement?

  - by Kyle

  I've got quite a few SQL statements like such: SELECT foo FROM things WHERE user_id IN (1,2,3..n) Is there a known limit to the number of elements that will safely fit in an IN clause like that?

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• Coping Indexes from old database to new one?

  - by AmRoSH

  Hi, I converted an old sql server database from 2000 to 2005 and forgetten to add old indexes to the new db. is there any way to copy the old indexes to the new db? any help?

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• How to speed up saving data to database over internet?

  - by robert_d

  I am using C#, Entity Framework and SQL Server 2008 Express. I am connected to the database over internet. What is the best method to speed up saving/updating data to database? It takes 60 seconds to save 140 records to database.

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• How to user IN operator in Linq?

  - by Umapathy

  Query: Select * from pu_Products where Part_Number in ('031832','027861', '028020', '033378') and User_Id = 50 and Is_Deleted = 0 The above mentioned query is in SQL and i need the query might be converted into Linq. Is there any option using the "IN" operator in Linq?. can you convert above mentioned query into Linq?

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• Rails activerecord to_sql_string?

  - by pepernik

  I've seen somewhere but can not remember. How to get an SQL from ActiveRecord object? Client.find(1).to_sql_string

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