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).
0
votes
0answers
3 views
When Should I use Shrink Option
I have seen a lot of Blogs stating that shrinking is not a good habit as it will reduce the performance of the system. I agree with all those things it will lead to side effects like ...
5
votes
2answers
65 views
Does an index with multiple columns make a similar index redundant?
Let's say I have a table that looks like this:
CREATE TABLE Activity (
ActivityID int primary key identity(1,1) ,
ActivityName nvarchar(10),
InactiveFlag bit
)
with an index that looks ...
4
votes
1answer
53 views
How to get a row_number to have the behavior of dense_rank
I have a stored procedure will be used to page through data. One of the requirements of the procedure is to have a parameter that will be used to sort two columns of data, the sorting should be used ...
2
votes
1answer
30 views
Can I decrypt TDE transaction log files for use with 3rd party software?
Is there a way to decrypt TDE log files on disk for use with 3rd party software? I have the original key and certificates. I am trying to use the transaction files with a 3rd party tool in order to ...
0
votes
0answers
12 views
XML data source with XSD validation importing the same data despite different files
Please bear with me, I've never used XML as a data source, nor am I familiar with XML itself, so I'm not entirely familiar with the nomenclature.
I have a series of XML files with data to be imported ...
3
votes
2answers
70 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]
...
1
vote
2answers
39 views
Generate List of Missing Relationships
I have two tables, CLUSER and CLUSERRX. CLUSER contains all the employees at my company and CLUSERRX contains a list of all the people in CLUSER with a specific workgroup and all of the users from ...
1
vote
2answers
44 views
View column has an 8000 character limit?
In SQL Server 2008 R2 we are using an updateable view to update a varchar(max) column. When we update the column with text and then check the number of characters, it is showing a length of 8000 ...
5
votes
1answer
56 views
Troubleshooting SOS_SCHEDULER_YIELD wait
Running our corporate ERP (Dynamics AX 2012), I noticed our production environment seemed much slower than our development systems.
After performing the same activities in both the development and ...
1
vote
2answers
34 views
Is it possible to remove a database server from a cluster resource, but keep it running on the node
I was wondering if anyone knew whether it was possible to delete the cluster resource, but keep all of the disks and sql instance running on the node instead? So if I was to delete the cluster ...
2
votes
2answers
45 views
Performance effect of indexing foreign keys
My database is for an HR application with performance reviews and I am interested in whether I should index my foreign key.
There are two tables involved. The first is a ratings table with 2 columns: ...
0
votes
1answer
20 views
How to do an in-place upgrade of SQL Server 2005 Express to SQL Server 2008 R2 Express
I would like to upgrade my SQL Server 2005 Express instance which is installed using this command:
SQLEXPR.EXE/qs /action=INSTALL /IACCEPTSQLSERVERLICENSETERMS
/FEATURES=SQLEngine ...
0
votes
1answer
38 views
Migration to databases Domain Users do not have access
I migrated databases to new servers, however the applications that were previously used with the databases are failing to load. I have changed the connections and etc. The jobs also seem to be ...
2
votes
1answer
47 views
How do I turn off ALTER DATABASE script output in VS 2012?
I am using SQL Server 2005 in conjunction with Visual Studio 2012 and a SSDT database project.
When I publish my VS project and generate the script to run against my database, VS includes the ...
1
vote
0answers
43 views
Is there a way to generate an execution plan for a stored procedure before executing it?
We have a very large (many millions of rows) table that contains some (few million) rows with invalid values in particular columns.
A stored procedure exists to correct the invalid records but it ...
0
votes
1answer
9 views
How to achieve this sql server replication scenario?
I want to achieve below illustrated scenario via sql server replication.
Client A and Client B are client databases containing same article Table A. This article needs to be published by Client A ...
1
vote
1answer
30 views
Migration of create statement from SQL Server to MySQL
I have a table that have the following table structure
CREATE TABLE [dbo].[ASAT](
[ID] [bigint] IDENTITY(1,1) NOT NULL,
[ASATID] AS ('ASAT'+right('00000000000000000000'
...
0
votes
0answers
36 views
How to improve the performance for SQL Server Count(distinct()) and Sum() functions? [closed]
The below one is my query. It's taking 12 seconds for the execution process. The count(distinct()) and SUM() functions are taking long time for execution. I tried it after create the non-cluster index ...
-1
votes
1answer
27 views
data warehouse construction from mdf and ldf file via etl
I have sample data warehouse stored in the form of mdf and ldf format. I want to use any ETL tool to extract data and then load datawarehouse on the specified database with username, password and ...
1
vote
2answers
56 views
How to attach an .mdf file that was not properly detached?
One of our clients had a SQL Server 2000 database, on a system which is no longer running. They have no idea what was in the database. They have given me the .mdf and .ldf files, and want us to ...
1
vote
0answers
27 views
Job accessing linked server yields error 7391
I created a stored procedure which queries data from a linked server to insert into a local table.
I tested this stored procedure by directly executing it; it works fine.
I have to run this stored ...
-1
votes
0answers
42 views
Unexpected index scan against partitioned table
I have a set of partitioned tables with CIX on (ID, DATE) and partitioned on DATE.
There is another identical set of non-partitioned tables with CIX on ID.
Case A: T1 and T2 are non-partitioned ...
3
votes
1answer
34 views
checksum(newid()) as primary key - what happens if a collision occurs?
Inspecting a rather critical database that is used by some software on my system, I found that one of the tables had a primary key on the column Id, where Id is calculated using checksum(newid()). ...
7
votes
2answers
117 views
Is there any way to prevent the memo structure from being pruned?
We know that the memo structure is pruned and some expensive alternative plans are discarded during optimization. I was wondering if there is any way to prevent this and let the optimizer just ...
1
vote
2answers
52 views
Update my local db based on scripts executed in my server database
I need to create an solution that update my local db version based on changes that was made on my server database.
First, I need to check the differences that has exists between these databases and ...
1
vote
2answers
16 views
Tracking down program from Event Viewer
The event log has hundreds of login failed errors for SQL Server. How do you find out the application generating them?
There are lots of potential candidates on the server and since it's logging in ...
2
votes
2answers
43 views
Restore database created in SQL Server 2008 R2 to SQL Server 2008 R2 SP2
I have a .bak file created by some other user in (I think) SQL Server 2008 R2 (10.50) and I need to restore it in SQL Server R2 SP2 (10.52). I used a hex viewer to look into the .bak file and found ...
1
vote
0answers
18 views
PowerPivot doesn't install in SharePoint mode on an Active/Passive Cluster
We a provisioning a new SQL Failover Cluster. We have successfully configured the SQL instance, and have moved on to configuration of the PowerPivot for SharePoint instance. We run the configuration ...
2
votes
1answer
55 views
Start service error code 3417 with SQL Server 2012
I cannot start the SQL Server 2012 service. The event log says the service-specific error code is 3417.
In the Event Viewer:
The SQL Server (MSSQLSERVER) service terminated with the following ...
3
votes
1answer
32 views
SP with Encryption Read/Writes Stats
If a stored procedure in SQL Server 2005 is created with the syntax "WITH ENCRYPTION" ,are the reads and writes of the encrypted stored procedure recorded in the sys.dm_db_index_usage_stats? I am ...
0
votes
1answer
28 views
SQL Server TDE - add master key and certificate [closed]
I want to add multiple master database encryption keys and certificates.
Can I do that?
3
votes
2answers
79 views
One filegroup, multiple datafiles, how to get list of tables in each file
In one of my production databases, I have a filegroup with 3 data files sitting on 3 different disks. There are over 50 tables on this filegroup.
How do I identify the location of each of the 50 ...
3
votes
0answers
22 views
custom population of full text index
Is there any way to populate a full text search index without storing the backing information in the database?
I don't mean using remote-blob-storage or FILESTREAM types. The backing information is a ...
2
votes
0answers
29 views
Server permissions of an activation stored procedure of a Server Broker queue
I have a stored procedure that queries the sys.dm_exec_requests view. In the stored procedure the view only returns one row, while the stored procedure needs to see all of them. The MSDN article on ...
-1
votes
1answer
29 views
Why does fn_my_permissions return empty rowset? [closed]
If I run this query:
select * From fn_my_permissions(NULL, 'SERVER')
This is what I'm getting:
entity_name subentity_name permission_name
------------- --------------- ...
2
votes
1answer
44 views
Is this a good strategy for importing a large amount of data and decomposing as an ETL?
I have a set of five tables (a highly decomposed schema for an ETL if I understand the nomenclature) that I'm going to load via bulk import, then run some inserts from those five tables into a SLEW of ...
4
votes
1answer
72 views
Is it “legal” to CREATE and DROP #SomeTable more than once?
I've got my code sort of segregated as "coherent blocks" that I can insert into a longer "configuration script" over and over, and one of the patterns I'm using is this:
CREATE TABLE #WidgetSetting
...
6
votes
1answer
56 views
Dropping Hypothetical Indexes
In the past I thought I'd deleted hypothetical indexes using either a DROP INDEX statement for clustered indexes and DROP STATISTICS statement for non-clustered indexes.
I have a database that is ...
3
votes
1answer
44 views
Convert SQL Server 2012 SSIS package to 2008
I've created a few SSIS packages in SQL Server 2012 that I need to run on SQL Server 2008. I've been told that it is impossible in their current state.
Is there a way to convert the 2012 packages to ...
1
vote
2answers
38 views
Replicating schema changes between production and development databases [duplicate]
Not too sure if this would be a good and proper way to go about things, so I apologize if I'm kind of far off.
Currently running Microsoft SQL Server 2005, and in this we have a database for a ...
3
votes
6answers
102 views
Backup very large table
I have to update certain values of a large table (for the sake of a presumed example, it is called 'Resource' and it is over 5M rows) and thus I have to make a backup before performing the changes. We ...
2
votes
0answers
40 views
Backup very large table in SQL Server [duplicate]
everyone.
I'm deeply sorry if this is an amateurish question, but I have to update certain values of a large table (for the sake of a presumed example, it is called 'Resource' and it is over 5M rows) ...
2
votes
0answers
30 views
Failover only working for Classic ASP, not ASP.net
Setup:
All machines run Windows Server 2008 Enterprise
SQL Server 2012 Standard (Primary)
SQL Server 2012 Standard (Mirror)
SQL Server 2012 Express (Witness)
Root issue: Our ASP.NET application is ...
-1
votes
1answer
65 views
Query returns no data [closed]
I am running a query to show LastName and Hire_Date and my results display the columns but do not include any data. This is an assignment for an online class and I have been waiting for my instructor ...
1
vote
2answers
53 views
SQL Server Memory Clerk Description
Trying to understand different memory clerks reported by sys.dm_os_memory_clerk however, not able to find description of the each individual memory clerk either on web (google and binged) or in SQL ...
-2
votes
1answer
50 views
Use second hard disk for database if first one is full
I installed Standard Edition on a server with a 500 GB drive. Now the system is giving me error message of disk space is not available, so I added a new hard disk. How can I tell SQL Server to start ...
2
votes
1answer
26 views
Display query which SSMS executes from Interface/WYSIWYG edits
If I am to add a new column to a table in SQL Server Management Studio 2008 via the interface/WYSIWYG (as opposed to writing a SQL query) this will, behind the scenes, create a SQL query which it will ...
4
votes
2answers
69 views
Should I use a composite or single-column index?
I have the following columns in my database table (Medicines).
ID bigint,
MedicineName nvarchar(50),
BrandName nvarchar(50),
MedicineCode nvarchar(20),
and price,quantity.
I am making a stored ...
-1
votes
1answer
28 views
VarChar to NVarChar causing truncate error
I am importing some data from a temporary table which has a column defined as VARCHAR(150). The destination tables column is defined as NVARCHAR(200). I'm using an INSERT INTO statement, but when I ...
2
votes
0answers
17 views
ODBC - how to set up ODBC driver for 2 languages (for different code page)
How to set up an ODBC driver to operate the Polish code page (1250) and Lithuania (1257) at the same time? Although the code page Lithuanian is wider than the Polish code page, the driver incorrectly ...
