This tag is for SQL Server 2008, major build version 10.00.xxxx.

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8
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1answer
396 views

What is the actual lowest possible positive REAL number

MSDN says that the range of REAL numbers is - 3.40E + 38 to -1.18E - 38, 0 and 1.18E - 38 to 3.40E + 38. Apparently the true lower limit is much lower. The following script populates a REAL column ...
8
votes
4answers
7k views

Can I export a maintenance plan without using Integration Services?

I'm trying to export a simple maintenance plan from an SQL Server instance. I want to check the export into source control, and apply the exported maintenance plan to functionally identical ...
8
votes
1answer
819 views

How to get accurate query performance?

I'm attempting to improve performance of a stored procedure. When I run the SP, it finishes almost instantly, as if something were cached. I was told to use the following two lines of SQL before ...
8
votes
2answers
1k views

SQL Agent powershell context reference

At my new job, we have multiple named instances on each servers. Server1\Dev Server1\DevIntegrated Server1\QA I have a SQL PowerShell script in the works that calls out to the OS, invokes ...
8
votes
1answer
2k views

noexpand hint for non-enterpise edition and performance

I have to use Indexed views to reach performance. As I can see from this comparison table standard edition does not support indexed views. But BOL says: Indexed views can be created in any ...
8
votes
3answers
1k views

Query is slow for certain users

I have a couple queries called from a C# .NET web application which are always fast for me (I am an local admin on the SQL Server) but for a group of users (domain group with required permissions), ...
8
votes
3answers
15k views

How to prevent transaction log getting full during index reorganize?

We have multiple machines where we have pre allocated the size of the transaction log to 50gb. The size of the table that I am trying to reorganize is 55 - 60 gb but is going to continuously increase. ...
8
votes
1answer
4k views

Is it possible to create an alias or synonym for a database?

Is it possible to create a database alias or synonym? What I am hoping to be able to do is have NewDatabaseName aliased as OldDatabaseName to prevent having to rewrite a ton of code. Backstory: I ...
8
votes
2answers
449 views

Mirroring the Distributor

Has anyone had success with mirroring the distribution database? We have a dedicated server as a Distributor. It handles all our push replication from prod to reporting. We'd like to build an ...
8
votes
3answers
7k views

Emulate a TSQL sequence via a stored procedure

I have a requirement to create a stored procedure which emulates a TSQL sequence. That is it always gives an increasing distinct integer value on every call. In addition, if an integer is passed in ...
8
votes
2answers
9k views

How do I switch off SCHEMABINDING for a view without recreating it?

How do I switch off SCHEMABINDING for a view without recreating it?
8
votes
1answer
370 views

Strategies for organising SQL Server with large amount of RAM

We now have a new server for our DB and amongst other things we have 128GB of RAM available (previously I had 16GB) . I know SQL Server is very good at managing it's resources, but I was wondering if ...
8
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2answers
5k views

why is io_stall_writes_ms so much higher for tempdb?

We have the user and system data files on the same disk drive. The ( io_stall_write_ms / ( 1.0 + num_of_writes ) ) is below 2 for the user files but the tempdb files are typically over 400. I see ...
8
votes
3answers
4k views

SQL Server 2008 datetime index performance bug

We are using SQL Server 2008 R2, and have a very large (100M+ rows) table with a primary id index, and a datetime column with a nonclustered index. We are seeing some highly unusual client/server ...
8
votes
1answer
8k views

BULK INSERT permission on a single database

I work on a company that has straight IT security manners. I was hired as a Database Analyst in order to optimize some processes in our team. The problem is that I only have read and write permissions ...
8
votes
2answers
3k views

SQLCMD Mode in SSMS and @@variable expansion

When using the SQLCMD mode withing SSMS (not from the commandline), is there a way to assign the current server and instance to a variable? This is different and distinct from assigning ordinary TSQL ...
8
votes
1answer
47k views

ODBC Data Source SQL Server Connection - Login Failed For User

I have moved my database from an SQL 2005 to a server with SQL 2008. I am now trying to create an ODBC Data Source. I am using "With SQL Server authentication using a login ID and password ...
8
votes
2answers
2k views

How does using separate schemas affect SQL Server 2008 performance?

I want to use separate schemas for objects with different purposes in our SQL Server 2008 database. Right now we use a fairly mind-numbing naming convention to indicate the purpose of a table or ...
8
votes
1answer
5k views

How to trace SQL queries which are crashing SQL Server

We have a SQL Server 2008 database server (it happens to be running under MS Failover Clustering, but I don't think that is relevant here). Our application runs Hibernate for DB access, and since we ...
8
votes
2answers
1k views

Sql server 2008 filestream maximum number of rows

We are using filestreams in Microsoft SQL Server 2008 (SP2) - 10.0.4000.0 (X64) and Windows server 2008 to store millions of files. Since there are millions of files all of them are grouped into 100 ...
8
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2answers
1k views

How to prevent daily index fragmentation of 99%

I have a highscore table for 100.000 players that is being inserted into 2 times a day with one record per player. At the end of the day the index fragmentation for the indexes in that table is 99%. ...
7
votes
2answers
3k views

A good SQL sniffer

Can anyone point me to a good SQL sniffer where I can watch the SQL commands that run against my database in real time? If it's free, that would be great.
7
votes
4answers
44k views

Easily show rows that are different between two tables or queries

Imagine you have two different tables/queries that are supposed to have/return identical data. You want to verify this. What's an easy way to show any unmatched rows from each table just like the ...
7
votes
3answers
8k views

Installation of SQL Server RAID 10 vs RAID 5

I am new to setting up SQL Servers and Vms. My predecessor used Raid 5 for C Drive where the SQL installation resided and RAID 10 for both database files and database logs. I was wondering whether ...
7
votes
3answers
4k views

Why do linked servers have a limitation of 10 branches in a CASE expression?

Why does this CASE expression: SELECT CASE column WHEN 'a' THEN '1' WHEN 'b' THEN '2' ... c -> i WHEN 'j' THEN '10' WHEN 'k' THEN '11' END [col] ...
7
votes
3answers
417 views

Accidentally change database name (SQL Server 2008)

It didn't happen to me YET. But I was thinking about this. I was messing around with my training environment, and by mistake I clicked in the database name, and then I touched the letter A. Let's ...
7
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2answers
12k views

Sql Server - Best Practices for Growing Database Files

I have been monitoring file growth via the data collector in sql server 2008 r2 for two weeks. The database is growing consistently at around 35(MB)/Day. The DB has not yet hit the initial size of 2 ...
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4answers
2k views

How will large index INCLUDE fields effect system performance?

This question is about SQL Server index performance with a varchar(2000) as an INCLUDE in a covering index. I’m trying to improve performance in an slow and unstable database application. In some ...
7
votes
2answers
16k views

How do I determine if a table exists in a SQL Server database in SQL Server 2008?

How do I determine if a table exists in a SQL Server database in SQL Server 2008?
7
votes
6answers
3k views

attach/detach v.s. backup/restore

I am using SQL Server 2008 Enterprise. I need to transfer the database (as a whole) to another server (to make a duplicate database to setup another test environment). I have two choices, (1) making ...
7
votes
2answers
11k views

Quick look at how much RAM is allocated to SQL Server?

With SQL Server 2005, you could look at the Task Manager and, at least, get a cursory look at how much memory is allocated to SQL Server. With SQL Server 2008, the Working Set or Commit Size never ...
7
votes
3answers
629 views

How to determine Windows Server start time using T-SQL

I am looking for a way to find out when the Windows Server was last started using only t-sql commands. I am trying to stay within the default security configurations (i.e. I don't want to enable ...
7
votes
3answers
4k views

Chaining SQL Server Agent Jobs

I have several work packages for each I have setup up a job in sql server agent. Sometimes I should run all together. What is the best way to run them all in a given sequence? I'm a bit surprised that ...
7
votes
1answer
1k views

How to set SQL Server index pages per fragment?

I have SQL Server 2008, and a number of databases. I have discovered that one of my table's indexes is extremely fragmented (How I know: http://msdn.microsoft.com/en-us/library/ms189858.aspx) The ...
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votes
2answers
4k views

Why does this query cause a deadlock?

Why does this query cause a deadlock? UPDATE TOP(1) system_Queue SET [StatusID] = 2, @ID = InternalID WHERE InternalID IN ( SELECT TOP 1 InternalID FROM system_Queue WHERE ...
7
votes
4answers
14k views

Replicating a remote MySQL database to MS SQL Server 2008

I want to replicate the contents of a MySQL database to a MS SQL Server 2008 database. Is this possible? Can anyone outline the steps required in order to achieve this? Thanks.
7
votes
2answers
1k views

How to find parent rows that have indentical sets of child rows?

Suppose I have structure like this: Recipes Table: RecipeID Name Description RecipeIngredients Table: RecipeID IngredientID Quantity UOM What are some good ways for ...
7
votes
3answers
504 views

Identify why a user can drop a database

I have a sql server user that has the ability to drop any database. I've been running the code below to check the rights that the user has in SQL Server but have not been able to identify how the user ...
7
votes
2answers
2k views

Do indexes consume memory?

I am just starting to learn about memory usage on SQL Server. When using the query in the answer to the question SQL Server 2008 R2 "Ghost Memory"?, I discovered that a single database is ...
7
votes
3answers
1k views

SQL Server Sandbox

I'm attempting to set up a sandbox for our report developers to their work in. My current plan is to "reset" the database every evening but I'm not sure how to go about doing so. What I mean by reset ...
7
votes
2answers
5k views

What are the differences between leaf and non-leaf pages?

I've been running some index usage reports, and I'm trying to get a definition of Leaf and Non-leaf. There seem to be both Leaf and Non-leaf Inserts, Updates, Deletes, Page Merges, and Page ...
7
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2answers
2k views

how will nvarchar(max) store data in database will it be fast if some data is less then 4000 characters?

I have to develop a CMS which will support two Language English, Arabic. This CMS will be a sort of Article Publishing site. While designing & analysis i found that some articles are more than ...
7
votes
2answers
419 views

Simple DELETE, but complicated execution plan

When I run this delete: DELETE FROM ETLHeaders WHERE ETLHeaderID < 32465870 ...it deletes 39,157 rows. It should be simple because it is deleting on ETLHeaderID which is the clustered index and ...
7
votes
2answers
21k views

How to add a user with access to a single view?

I'm working with MSSQL Server Management Studio 2008 and I need to expose a view to a third party for their data reconciliation. I have created the appropriate view but I'm having trouble creating a ...
7
votes
1answer
2k views

Why does my SQL Server database triple in size after deleting millions of records?

We have two database tables ErrorLog and Audit which have both grown fairly large over the last couple of years. So in an effort to reduce the size of the database, I have to write a script to clean ...
7
votes
2answers
1k views

DTA Recommends to CREATE STATISTICS

I just ran a T-SQL query through DTA and one of the recommendations is to CREATE STATISTICS on one of the columns that is part of many of the queries in the SQL code file. My question is, how exactly ...
7
votes
2answers
6k views

SQL Server 2008 log files have minimum sizes, what gives and how do I make them smaller?

Ok, to start with, I screwed up when I created the databases, using a create script roughly like so: (artificial linebreaks and names/paths for wrapping purposes) CREATE DATABASE [EXAMPLE] ON ...
7
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1answer
9k views

Automatic decimal rounding issue

The question is relatively simple. I need to calculate 3 columns where the mid results are huge decimals, and I'm running into a problem early on with SQL Server basically rounding the decimals ...
7
votes
1answer
2k views

Direct the OUTPUT of an UPDATE statement to a local variable

I would like to do this : DECLARE @Id INT; UPDATE Logins SET SomeField = 'some value' OUTPUT @Id = Id WHERE EmailAddress = @EmailAddress -- this is a parameter of the sproc Is this even ...
7
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3answers
2k views

Dealing with CXPACKET waits - setting cost threshold for parallelism

As a follow-up to my previous question on perf troubleshooting a Sharepoint site, I was wondering if I could do something about the CXPACKET waits. I know the knee-jerk solution is to turn off all ...