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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363 views

Why query optimizer doesn't use negative filter index

I have a table that has following structure, as you can see, there are one clustered index and two non-clustered indexes, one non-clustered index is IX_ParentId_Include, and another one is ...
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2answers
54 views

Should I include as much information as possbile to help the optimiser?

Reading the article "Dynamic Search Conditions in T‑SQL" I saw the following statement in the "Using sp_executesql" section. Double Feature You may wonder why there are two conditions on the ...
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1answer
133 views

SQL Server 2008, SOAP Endpoint, http.sys, timeout

I am debugging a SOAP webservice hosted by SQL Server 2008. I know that those are deprecated in future versions and we should consider a different technology, of course. There is an exposed procedure ...
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1answer
2k views

Finding login or user name of last person to use a DB

The boss has asked for a list of DB names along with size and name of last person to use that DB. I've found resources for when a DB was last accessed but for by whom. How would I solve this? ...
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204 views

When is transaction removed from sys.dm_tran_active_transactions?

We are having some issues with clients getting Transaction Timeout when connecting to our clustered SQL Server 2008 R2. To investigate the problems I have been digging into ...
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1answer
246 views

SQL Server 2008 R2 - Limit viewing on database list

In SQL Server 2008 R2 I have user1, he owns 3 db (db1 , db2, db3) and I want he can see only these 3 db when he login by using SSMS. I did REVOKE VIEW ANY DATABASE FROM PUBLIC, but then he cannot see ...
2
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0answers
70 views

Querying for reputation of the commenter and its addressee using SEDE [closed]

How can I modify this Data Explorer query for the case when user of the comment is same as the poster, then the query should look for the tagged user in the comment and print the tagged user ...
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3answers
1k views

SQL Server: CONVERT From ISO8601 To DateTime Within Query

I have a Microsoft SQL Server 2008 R2 database where the DateTime column is not a datetime data type, but varchar(50). Our website logs that data and I don't really have control over it (I'm sure a ...
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3answers
2k views

Is table partitioning improving performance? Is it worth it?

I have just been involved in a project on which I will have to develop a data migration process and a web interface that uses an already existing SQL Server DB. This DB was developed by another person ...
2
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1answer
409 views

Can SQL Server Bulk Copy cause timeouts when querying the table

In SQL Server 2008 R2, can using BulkCopy to upload thousands of rows of data cause problems for queries taking place on the same table? Specifically could it cause the queries to time out? The ...
3
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1answer
1k views

Partition Style - MBR or GPT

I am setting up a new server and I am designing the server for performance over capacity. Planning the disk partitioning style I would like to use GPT over MBR but am not sure which is best. I am ...
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2answers
161 views

Cannot Copy Database [closed]

I am working with SQL server 2012. I want to copy a database along with all the data. I just want to create a dev DB. I know SQL Server 2012 has a Copy Database... wizard. But when I run that wizard, ...
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2answers
3k views

Detecting changes in a SQL Server table

In my application, with a DB running on SQL Server 2012, I've got a job (scheduled task) that periodically executes an expensive query and writes the results to a table that can later be queried by ...
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1answer
798 views

Return every instance of a string contains search

I have this sample table and data CREATE TABLE [dbo].[SampleTable]( [Id] [int] IDENTITY(1,1) NOT NULL, [TextColumn] [nvarchar](1000) NOT NULL, CONSTRAINT [PK_SampleTable] PRIMARY KEY ...
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2answers
154 views

How to verify data dumps between two MS SQL and MySQL

I'm trying to verify data exported from MSSQL and imported into MySQL is 100% accurate using MD5 hash. On Linux, I'm using md5sum and WinMD5 on Windows. The encoding is the same: UTF8. I tried both ...
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1answer
37 views

Insert / Edit Rows by Selecting FK row

When inserting or editing rows ("Edit Top 200 Rows") for a table with a FK constraint, can the editor be configured to select the foreign row, rather than me having to look up the FK?
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2answers
533 views

Performance counter MSSQLInstance\SQL Errors\Errors/sec\Info Errors whats in it?

Im wondering what kind of errors would show up in the: SQL Errors\Errors/sec\Info errors performance counter. I read the TechNet article it just states: Information related to error messages ...
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1answer
51 views

Which should I use on my DB? - Clustered Index or Non Clustered Index or Both [duplicate]

I just need advice on how I am going to optimize my database. | Date | Time | Area | Block | Data1 | Data2 | Data3 | DataN | I have that format of tables on my database. Each tables has 30-days of ...
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2answers
124 views

Which should I use on my DB? - Clustered Index or Non Clustered Index or Both

I just need advice on how I am going to optimize my database. Date ---- Time ---- Area ---- Block ---- Data1 ---- Data2 ---- Data3 ---- DataN I have that format of tables on my database. Each ...
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0answers
58 views

Replication failure after old domain controller shut down

We changed domains on our SQL Server 2008 R2 about 6 months ago with no issues while the old domain controller was still up. The old controller was taken down today and our replications started ...
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0answers
59 views

How control 27 locations and 27 databases? [closed]

We have 27 locations and 27 databases (all are SQL Server 2012 R2) All of them are the same (same tables,views,...), with different data for each location and separated from each other (in each town) ...
3
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1answer
809 views

Loopback Linked Server

Is there any benefit in use a Loopback Linked Server, maybe in a security or performance level, because I really don't get the idea ? I google it for several minutes and I find nothing about it.
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0answers
1k views

Install SQL Server 2012 missing vs_Setup.msi from Visual Studio 2010

I am trying to install SQL Server 2012 Enterprise with SQL Server Data Tools included. I understand that SQL Server Data Tools is part of what was formerly known as BIDS. The installation for SQL ...
4
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2answers
283 views

Replication with FileStream

I need to setup database replication (for high availability) on a database that uses FileStream. This is on SQL Server 2012 Standard Edition, so Always On or Peer-to-Peer replication is not an option. ...
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1answer
150 views

SQL Server and SQL anywhere compatbility

I wish to install a SQL server DB on a VM already running a SQL anywhere DB. May I encounter a compatibility issue ?
3
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1answer
3k views

How can I create a Foreign Key to a Compound Primary Key with a single column?

I am working with a 'lookup' style table that is already in place, which has a compound primary key (not my design) in Microsoft SQL Server 2012. I want to add a foreign key to it in another table, ...
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0answers
773 views

ssis ado.net destination has failed to acquire the connection

I am Transferring data from sql server source db to sql server destination db (cross db). but some times getting error "ssis ado.net destination has failed to acquire the connection.The connection may ...
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1answer
1k views

How to know DB size using backup file without restoring it

Is there anyway so that we can estimated/know size of database using backup file without restoring it?
3
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1answer
280 views

Is it possible to return a custom error for a logon trigger?

I'm trying to get a logon trigger to return a custom error. Thus far everything I have tried causes it to return the standard error: My trigger looks like this: CREATE TRIGGER Test_Logon_Trigger ...
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1answer
243 views

Performance hit with column alias

I have a database in SQL Server 2008, with the final data table having about 2 million rows. The development team is implementing a new application and they have suggested changing the column name to ...
4
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2answers
7k views

SQL Server on Mac

Can SQL Server engine express edition be installed in a Mac OS? I use a MacBook at home and would like to use it as a testing/learning platform for SQL Server.
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1answer
435 views

Minimum Permission to Restart SQL Services

Occasionally, our developers need to restart SQL services. We do not want said developers to be local admins on each server if not necessary. What is the minimum permission required so that the ...
5
votes
3answers
7k views

SQL Performance issue after migration from SQL Server 2005 to SQL Server 2012

Yesterday we migrated a SQL Server 2005 database to SQL Server 2012. We made a full backup and restored it on the new server. Problem now is that the database on SQL Server 2012 is much slower than ...
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0answers
84 views

Create replication sql server for DWH [closed]

I have a DWH and I need to make an update once a day from STG Database to DWH I need use replication in SQL SERVER, How I do this?
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1answer
213 views

Monitoring sql server

This question is related to monitoring of SQL Server. I want to send an email alert with all open transactions on SQL Server in HTML report whenever there is sustained 50-60% CPU usage for more than ...
0
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1answer
121 views

sql server disk I/o question [closed]

I have a question on disks. How much I/O can a normal disk and a SAN disk can handle? I have heard about SAN disks should be able to handle upto 200-300 mb/sec, how much does a normal disk can handle ...
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0answers
107 views

Phantom insert query

I have a log table which I have to clean up a bit because it is growing very fast. While deleting some historical data I reached count zero for that condition on which I have deleted the entries. 5 ...
3
votes
1answer
119 views

Every query plan statistic says my query should be faster, but it is not

I have a bit of a odd situation. I have two queries that produce the same result, according to SSMS and SQL Sentry Plan Explorer the first query should cost 95% and the 2nd query should cost 5%. ...
1
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1answer
111 views

Why does sp_rename not affect the output of sp_helptext?

create procedure Eg_Proce as begin select * from po; end go exec sp_rename 'Eg_Proce','Example_Procedure' After renaming procedure sp_helptext 'Example_Procedure' The definition of the ...
2
votes
1answer
237 views

Most efficent DELETE Method

I must choose between three possible DELETE methods in SQL Server. The table: RawData stays at around 500GB. Here is the table: CREATE TABLE dbo.rawData ( rowId INT IDENTITY PRIMARY KEY, ...
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0answers
1k views

Login failed for user '' reason:The account is disabled sql error [closed]

i got the error after change my SQL windows authentication security login set enabled to Disabled . But after that i dont able to reset windows authentication security login please help me ...
0
votes
1answer
3k views

SQL Server 2012 T-SQL Health Check Script / Stored Proc [closed]

I'm hoping not to re-invent the wheel. I was looking for a routine server side health check script(s) / Stored Proc(s) for SQL Server 2008+ hoping they work on 2012 that provide information in ...
6
votes
4answers
279 views

Only do log backup if necessary in SQL Server

We have transaction log backups taken every few minutes from many databases. Is there a way to determine if there were any committed transactions since the last backup and only then do a log backup? ...
2
votes
1answer
126 views

Saving passport information [closed]

For starters: Our company is based in Germany and thus is based on German law. Germany now has adopted a new act regarding anti-money laundering and which information needs to be stored. Now we're ...
1
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0answers
104 views

Bind web service/Report Manager based on IP address AND hostname

I'm trying to get Apache installed on our main database/application server, and I'd like to give it its own IP address on a secondary NIC so I don't have to use a nonstandard port. This requires that ...
3
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3answers
3k views

Multiple Transaction Log files and performance impact

So I've gotten into an argument with several people regarding the number of transaction log files a give databases should have. I've seen several post saying you should only have 1 transaction log ...
2
votes
1answer
9k views

How to solve the error Msg 547, Level 16, State 0, Line 1 [closed]

Please suggest me how to solve the error How to solve the error Msg 547, Level 16, State 0, Line 1 The ALTER TABLE statement conflicted with the FOREIGN KEY constraint "MyForeignKeyName". The ...
1
vote
1answer
255 views

DTC Timeout when trying to update oracle table through link that contains a text index

Problem Given is a SQL Server connected to an ORACLE Instance as a Linked Server. It’s using the Oracle Client OLEDB Provider. When doing an update in a transaction on a table having a CTXSYS.CONTEXT ...
2
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3answers
713 views

SQL Server select columns which contain data

I'm working for a client to import data out of a generic off the shelf application database. If you can imagine a database that is designed by software developers that have no concept of database ...
0
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1answer
316 views

sql-server optimize query with lots of null checks

I have a query such as: select something from somewhere join stuff on condition join more_stuff on condition where somewhere.sometime is null and somewhere.someone is null and stuff.whatever is null ...