Microsoft's SQL Server is a relational database management system (RDBMS) that runs as a server providing multi-user access to a number of databases. It originated from the Sybase SQL Server codebase, which is why both products use the extension of SQL called Transact-SQL (T-SQL).

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Is it safe to change the Recovery Model of SSRS database ReportServer to SIMPLE?

I'm changing the recovery model of ReportServer database from FULL to SIMPLE. Is there any reason why i would not want to do this? Besides the obvious answer of losing point-in-time recovery? (i am ...
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1answer
781 views

SQL 2005 Full Recovery Mode Point in Time Restore w/out Backup

We have a database that is in full recovery mode. The database is not in production yet so does not have a backup plan in place and is thus not being backed up. In other words, there is no existing ...
2
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3answers
851 views

Migrating from ntext to NVARCHAR(MAX)

I have table with the columns of type ntext.And for some peculiar reasons, client want to migrate the column type to NVARCHAR(MAX). While doing so , what all potential threat should i be careful ...
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4answers
462 views

Regnerating an execution plan - is this a valid approach?

If I am optimizing a query, in order to ensure that this query does NOT uses cached execution plan I use OPTION (RECOMPILE) with the query. Is it a good approach?
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1answer
504 views

What can be done, if anything, to tune a SharePoint database?

SharePoint uses a single table (i.e. dbo.AllUserData) with columns like nvarchar1, nvarchar2, ..., nvarchar64 or int1, int2, ..., int16 (193 columns altogether) to store all items from all lists in ...
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3answers
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Is the ADO.NET Entity Framework known for generating poorly performing queries?

This question is inspired by the comment posted to the latest ServerFault blog post: Are you guys still using LINQ to SQL? I know I can use SQL Server Profiler and/or the ToTraceString method to ...
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1answer
1k views

detaching database results in error “SQL Server detected a logical consistency-based I/O error”

I'm trying to detach a database and I'm getting this error : SQL Server detected a logical consistency-based I/O error: incorrect pageid (expected 1:234; actual 0:0). It occurred during a read ...
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3answers
150 views

Is it possible to install Developer Edition of SQL Server as the primary development server?

Is it possible to install Developer edition of SQL Server on a Windows server environment as development server? Each developer will have a local copies of same SQL Server edition and will connect to ...
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1answer
532 views

truncate table for all db in sql server 2000

i need a script that will go to every db in server and if exsistes a table named "table1" will do truncate table table1
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4answers
2k views

Examples of SQL transaction procedures for sales tracking or a financial database

I am making a database for an accounting/sales type system similar to a car sales database and would like to make some transactions for the following real world actions: salesman creates new product ...
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5answers
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Is it okay to put dots in SQL Server database names?

If I use a database name with a dot in it in SQL Server (2005 or 2008), something like "MyApp.Sales", will this cause any problems?
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1answer
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automating a database backup, restore and stored proc call

How do I create a process that will: backup Database A restore it as Database X (needs to be definable) then run a stored procedure against Database X. shrink and truncate its log file. Anybody ...
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6answers
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SQL Server command line usage? Is it possible?

I've been trying to use the SQL Server Management Studio 2008's built in "Solution Explorer" to manage a project and after 2 weeks of struggling with it, I've decided I don't really care for it. It's ...
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3answers
120 views

Is there any trick that allows to use Management Studio's (ver. 2008) IntelliSense feature with earlier versions of SQL Server?

Latest version of Management Studio (i.e. the one that ships with SQL Server 2008) finally has a Transact-SQL IntelliSense feature. However, out-of-the-box it only works with SQL Server 2008 ...
7
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1answer
346 views

Why would running ALTER TABLE on a column cause it to go from NOT NULL to NULL?

I am mass updating a SQL Server database. I am changing all our numeric(38,0) columns to int (yes, SQL Server scripts were created from Oracle scripts). Using SMO and C# (I am a sw engineer), I ...
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3answers
252 views

Does separating VARCHAR values based on size have a performance gain?

I am working with a team that is trying to implement an EAV system. They have decided to split the attribute-value tables out by type and they are debating using different tables for different size ...
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2answers
6k views

Easy path to REST on SQL Server?

At work, one of our primary databases is running on MS SQL Server. I think it's 2008. I'm currently hitting it via UnixODBC and FreeTDS from a Linux host. Unfortunately, the UnixODBC/FreeTDS are not ...
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2answers
458 views

Impact of Redgate SQL Search on Server

I'm a huge fan of a lot of the Redgate tools, however at my current workplace they are very paranoid over anything interacting with live servers (in particular affecting performance). So my question ...
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7answers
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Moving tables to another SQL2008 database (including indexes, triggers, etc.)

I need to move a whole bunch (100+) of large (millions of rows) tables from one SQL2008 database to another. I originally just used the Import/Export Wizard, but all the destination tables were ...
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1answer
1k views

Can't stop replication sp_dropdistpublisher responds “there are subscribers defined”

I am running into errors: exec sp_dropdistpublisher @publisher='servername' response: Msg 21047, Level 16, State 1, Procedure sp_dropdistpublisher, Line 145 Cannot drop the local distribution ...
5
votes
3answers
10k views

How to restore multiple backups

I'm using ExpressMaint and Windows Scheduled Tasks to create weekly full and daily differential backups of some MS SQL Server 2008 R2 Express databases Weekly fulls expressmaint -S ...
14
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1answer
3k views

How to get the MAX row

In SQL Server I've always found it a pain to get the max rows for a dataset, I'm looking for a list of the methods to retrieve the max rows with some guidance on performance and maintainability. ...
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3answers
30k views

How do I get back some deleted records?

I mistakenly deleted around 2,000,000 records from a remote SQL Server 2008 table. The server is not granting me access to the backup files on the server side. Is there any way to get back these ...
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11answers
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How can I track database dependencies?

As internal applications evolve over a number of years, you occasionally find there are a number of tables that people believe are no longer relevant and want to cull. What are the practical methods ...
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3answers
6k views

What is the best way to get a random ordering?

I have a query where I want the resulting records to be ordered randomly. It uses a clustered index, so if I do not include an order by it will likely return records in the order of that index. How ...
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1answer
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Difference between Hash, Merge and Loop join?

In SQL Server you can specify the join hints: HASH JOIN MERGE JOIN LOOP JOIN What is the definition of those three join hints, and when should each be used?
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2answers
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What is the best way to filter or otherwise manipulate the results returned by a stored procedure?

Often I find myself wanting to filter or order the results returned by execing a stored procedure - for example to order the output of sp_who2 by login or CPU Time, or filter it by host name. What is ...
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6answers
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Pros and Cons of SQL Server back up strategies and their appropriate usage scenarios

From what I can tell, there are three possible ways of backing up your SQL Server database Full backup Differential backup Log Shipping What are the pros and cons of each strategy and in what ...
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5answers
7k views

How do I copy a table with SELECT INTO but ignore the IDENTITY property?

I have a table with identity column say: create table with_id ( id int identity(1,1), val varchar(30) ); It's well known, that this select * into copy_from_with_id_1 from with_id; results in ...
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3answers
9k views

How to execute SQL against all DBs on a Server

I have some standard SQL that I run against multiple databases on a single server to help me diagnose problems: select so.name, so.type, MAX(case when sc.text like '%remote%' then '' ...
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votes
2answers
355 views

What's the best way to track Updated By, Updated On

In MS SQL Server, what's the best way to update an Updated By, Updated On set of fields on a table? I've seen it done it triggers, in the code. etc. The upside I've seen to triggers is that it all ...
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2answers
7k views

What is a Clustered Index?

I need a short explaining of clustered index. What is a clustered index? What are best practices for using the clustered index?
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6answers
869 views

Optimize this SQL query for performance

I'm trying to optimize the following statement: 'VI'+CAST(month(GETDATE()) AS NVARCHAR)+'/'+CAST(year(GETDATE()) AS NVARCHAR) +'/00000' +CAST(@number+1 AS VARCHAR) The statement produces a value ...
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3answers
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Rebuilding the transaction log

We have a very large database (~6TB), whose transaction log file was deleted. We have tried: Detaching and reattaching the database; and Undeleting the transaction log file but nothing has worked ...
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2answers
367 views

Shouldn't SQL Server Support RANGE?

As someone who develops websites and does a bit of SQL Server, it seems a no brainer to me that SQL Server should support a simple clause that indicates the results should only include a specific ...
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4answers
5k views

Using SQL Profiler on a database that's in production

As a developer, I use SQL Profiler quite often. It's a good debugging tool, both to track what my code is doing and to analyse performance problems. But I've always used it on my development ...
4
votes
3answers
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Building Dynamic SQL-Server Where Clause

Let us review this dba.exchange Oracle question for SQL-Server. This is SaUce's code, after a little formatting: CREATE PROCEDURE GetCustomer @FirstN nvarchar(20) = NULL, @LastN ...
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3answers
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Find out what queries are causing the biggest amount of network traffic

On a production SQL server I am seeing intermittent enormous spikes in data traffic. Up to 200Mbit/s which is causing NETWORK IO waits which in turn cause query timeouts. How can I find out what ...
6
votes
2answers
887 views

Get records between time span

I would like to retrieve records between time spans,All i have is this snippet of string indicating the time span 9:00 AM - 10:00 AM below is the table schema CREATE TABLE [dbo].[Samples]( [RID] ...
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2answers
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How large is “too large” for SQL 2008 Web Edition?

For our soon-to-be-hosted application I need to choose between SQL Server 2008 Web edition and SQL Server 2008 Enterprise edition. There isn't any "must-have" functionality: the application currently ...
8
votes
2answers
1k views

Possible to run two DBCC INDEXDEFRAG commands simultaneously, each on a different table?

I am currently running a script which performs a DBCC INDEXDEFRAG on every table in a SQL Server 2005 database, one table at a time. Using DBCC DBREINDEX instead of INDEXDEFRAG is not an option, due ...
5
votes
1answer
177 views

Is my function nondeterministic one

I have two functions: fn_Without_Param and fn_With_Param CREATE FUNCTION [dbo].[fn_Without_Param] ( ) ... INNER JOIN .. ON .. AND SubmitDate = CONVERT( varchar(10), GETUTCDATE(), 101 ) and /* ...
0
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0answers
167 views

What is the best query to use to monitor a SQL Server database's status?

I want to be able to run a query to get the crucial information about a database's status. I.e., I want the query to be able to tell what whether or not the database is in a good state. This is the ...
15
votes
4answers
10k views

What is the best query to use to monitor a SQL Server database's status?

I want to be able to run a query to get the crucial information about a database's status. I.e., I want the query to be able to tell what whether or not the database is in a good state. This is the ...
8
votes
1answer
685 views

Is there a reliable way to determine when you should run DBCC CLEANTABLE to reclaim space?

Lately, instead of just growing files when they near 80% file utilization, I've been more proactive at reclaiming space via the usual tricks like defragmenting heaps, adding & dropping clustered ...
6
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3answers
358 views

Is the SQL Server IsShutdown property useful to determine whether a database is in a good state?

My company has a tool that monitors statuses on servers, services, databases, etc. We monitor a number of on-site servers for our customers. One particular simple check performed is to determine ...
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2answers
1k views

Where can I find database tuning exercises for learning?

As a developer, often DBAs take responsibility for resolving performance issues at the database level so we don't get that much experience diagnosing, tuning, refactoring queries etc. I'm looking ...
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9answers
58k views

Passing array parameters to a stored procedure

I've got a process that grabs a bunch of records (1000's) and operates on them, and when I'm done, I need to mark a large number of them as processed. I can indicate this with a big list of IDs. I'm ...
7
votes
1answer
411 views

Full Plan Cache Behavior

In SQL Server 2005, what happens when the plan cache fills up? I have done some research, and from bits and pieces gathered it seems that cached plans are given an "age" that consists of it's weight, ...
4
votes
2answers
161 views

Randomizing table contents and storing them back in the table

I have a table with at least a million records in it. These rows were created by a custom app that reads several SharePoint site collections and stores the item urls in the table. Now, since we read ...