Interview Tips
Feb 29, 2008
hi,
pls help me ,i am going to attend the interview for SQL DBA pls give me a some tips.
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Is There A Site Or A Document For Query Optimization Tips And TSQL Coding Tips?
May 9, 2008Hi.
Me any my team are soon going to work on a performance critical application. My team has some experience of writing SQL, however we have not done performance oriented coding.
I am looking for a comphrehensive document which lists information for writing good SQL with performance. Please guide if there is such a document or web site.
Thanks,
Prasad
Any Tips
Aug 4, 2007Employee Date Enquired Title Company
Bryan Cole 2007-05-01 Recruiter ABC
Bryan Cole 2007-05-15 Recruiter ABC
Bryan Cole 2007-05-21 Recruiter ABC
Bryan Cole 2007-06-15 Recruiter ABC
Bryan Cole 2007-07-01 Recruiter ABC
Bryan Cole 2007-07-30 Recruiter ABC
I have to do row by row date comparisons in a date column. If the date difference is more than 30 days we keep it , otherwise we suppress it. How can we write the query without using cursor so that only the bold rows will come ?
SQL Profiler Tips?
Nov 7, 2000What is it mean GHOST in SQL Trace column ?
Thanx in advance.
Tips On EveryDay
Jun 13, 2008Hi Gurus ..
Could any one create a thread called Tips for the Day and Give any imports and complex query to learn on each and every Day ?
Thanks in Advance
Dana
Security Tips
Dec 20, 2006Dear all,I'm designing a system including the database and the securityrepresents the most crucial aspect of the system; hence for thedatabase security i have implemented the following aspects and needyour advise on further aspects or perhaps corrections where by thesystem is web based using asp.net and under iis 6.0 with https; in theasp.net engine side, i have included client-side validations for whatever is inputed and validated against sql injections for postbackforms:The features of security in SQL Server 2005 side i have implemented:1.) Created MACHINEASPNET Account2.) Allowed ASPNET Account to access the DB3.) Explicity denied ASPNET Account all permissions to all tables,functions and views4.) Denied all permissions to the ASPNET user for stored proceduresexcept EXECUTE permissions5.) By Stored procedure creation, WITH ENCRYPTION, EXECUTE AS'MACHINEASPNET' was usedNo SQL was included in the asp.net code except for calling storedproccedures; the policy is to only call stored procedures within theasp.net pages and encrypt the connection strings inside the web.configfile.Kindly, give me some guidelines for better security or discuss with methe security aspects i mentionedRegards
View 1 Replies View RelatedInterview
May 8, 2004Good fortune came my way this morning I was invited to an interview for a Database Administrator/IT Support position with a local charity.Although my 2 years experience with IT has been mainly supporting desktops Win 98,2K ,XP in a workgroup together with training users on MS Office Professional I decided to go for the database admin/IT support because I want to broaden my experience with IT applications. The objective being to become more marketable to employers.While I definately meet most of the IT support/training requirements for the post a few requirements are making me nervous because I have no experience in them since I believe I may need programming and or other skills which I don't have. The accountabilities that make me nervous are the following :
1. Devise and implement solutions to corrupted data and software inconsistencies or failures of the housing database.
2. Devise and implement solutiions to corrupted data and software inconsistences or failures of the management information system.
3. Devise and deliver reports from the housing database or MIS in order to satisfy the requirements of managers and external regulatory bodies.
4. Test and validate new versions of software.
Do I need database programming skills for these requirement?If not what skiils do I need and what would be the best way of answering quetions about these requiremnts during interview since I have no database admin experience ?
Looking forward to your thoughts on this.
Eastfield
Interview
Apr 11, 2008Hello everybody,
I'm new to SQL Server,I have a interview tomor,could anybody give me a website from where i can get questions on SSRS.
Thanks in advance
Tips For Speed Up Sql Querys Using Asp.net
Mar 22, 2004Somebody can give some tips or hints for speed up my querys and procedures from sql and get more performance, what is best to use, joins o cursors, using cursors can give me more performance?
View 1 Replies View RelatedReplication Troubleshooting Tips
Jan 6, 1999Hi all:
I'm new to replication but I have already set up replication and have seen it
working and failing and have gotten myself out of jams so far but there must
be an easy way to administer it when things don't replicate as expected. I'm
finding that I could easily kill half a day just trying to dig up
information leading to troubleshooting tips. Is there documentation just on
managing this feature. The regular MS Administrator's guide doesn't offer much.
Currently I have a problem that if replication fails on one command I get a
SQL Mail telling me of the problem but does replication continue to the next
command or does it just stop until the problem is fixed? I'm finding that I am
constantly checking the publisher and subscriber databases and verifying if
replication is indeed doing what the msjob_commands table reports. I set the
batch to commit after each transaction instead of every 100.
Help...
SQL Server Tips And Tricks
Sep 4, 2007Hi,
For your day-to-day SQL Server issues like query tuning, optimization, TSQL problems, I am writing the blog called
http://blog.namwarrizvi.com
Some of the latest articles are:
Generating 1 million rows in less than a second
Conditionally add column in the table
Multiple Inserts in one statement
Capture every data operation in SQL Server 2008
100 Nano seconds precision in SQL Server 2008
Represent Trees and Graphs in TSQL
MERGE Statement of SQL Seerver 2008
Return Last n Orders by using APPLY operator
Number padding in TSQL
Microsoft Performance Point Server and Sharepoint
Caching and Recompilation in SQL Server 2005
and many more....
I will really appreciate comments and suggestions.
Updates Are Blocking.Tips Welcome
Nov 26, 2007Hello,
We come accross situations where people are running big updates on the database (i.e. 50.000 updates).
Our problem is that those big updates are blocking other user updates.
Thanks to snapshot isolation, users can query (select) the database with no lock.
We rebuilt the indexes setting that the indexes used by the update procedure would not use page locks and only row locks.
We set that the database would update the statistics asynchronously.
Now we are still facing blockings and we would like to optimize the database to avoid those blockings.
What else could we check? Any tips regarding the way to avoid that problem is really welcome.
Thanks,
Olivier
Tips On Securting Sql Server
Jul 23, 2005Hello I have 2 sql servers in my company and many remote sites. I amtrying to figure out the best way to keep them safe, since both haveaccess to the internet behind the firewall. I was planning to disbablethe default gateway on one or maybe disabling file sharing on both, iwas also thinking to block access to the the terminal server that isrunning in admin mode, either through the firewall or the permissionsof the rdp protocol. I have a few admins that have account manager andserver operator permission as well as exchange admin. Any ideas in howto restrict access to my servers? thanks.
View 1 Replies View RelatedInterview Advice?
Jun 4, 2001Help please? Does anyone have any suggestions for me in regards to my first interview for a SQL DBA position. I will be meeting with the technical team including developers and IT professionals as well as the hiring manager. I want to make sure I as the right questions and have the correct answers. This is my first interview for this type of position. What are good questions? Any help or advice would be greatly appreciated.
Jerry
SQL 7 Interview Questions
Feb 23, 2001Hi,
I was wondering if some one would be able to help me?
I'm interviewing a SQL Admin soon and I'd like to ask him some
SQL 7 questions to test his knowledge. He has less than a year
of experience. Does anyone know any good questions I could ask him?
Please e-mail them if possible. I appreciate any help that could be provided.
Thanks,
Jim
Interview Question
Aug 19, 2004here is a question asked in a interview:
u created the sales database with the initial size of hte transaction log of 50 mb with autogrow, but no autoshrink
u do not make any backup and donot set the truncate log on check point option to on.
what will be the transaction log size after the next check point has passed?
Interview Question?
Feb 23, 2004How many tables can be updated with a single update ?
View 14 Replies View RelatedInterview Question
Feb 23, 2004when does sql use update lock?
View 1 Replies View RelatedThis Is Interview Question...
Jun 3, 2008Hello
Can any one help me for below question....
" write a query using FOR UPDATE syntax "
Thanks
Ganesh
Solutions are easy. Understanding the problem, now, that's the hard part
Interview On Sybase
Jul 5, 2006Hi,
I know sql and Dataware housing.I got a job offering for sybase sql but I don't anything about sybase.Will it be in programming in Actually what we will do in sybase? What will be the nature of work? and I just want to know what type of question will be asked ? Please do reply.
Regards,
Raji
Interview Questions
Feb 14, 2007hi,
i have been attending interviews and jotting down a couple of questions that were asked to me. could someone please answer to these..it would be of gr8 help..
Q 1> give example of situation when & why u would use clustered and unclustered index. not the definition a practical example.
Q 2> a website has a lot of users using it and the pages are loading very slowly what would you check..
i said would look for deadlock , the next question how would you look for dead lock?
i answered would check on the stored procedure on that page, question what if there are multiple stored procs then what would you do?
Q 3> what if u have a dts package and execute SQL task and there is a stored proc that is doing inserts on a table and that table has triggers on
it for insert, delete etc.so would the triggers also be executed with the dts package run?
thanks.
Interview Related
Dec 10, 2007Dear All,
Could anyone guide me to prepare for the Interview in SQL SERVER 2005.
I have studied the relevant things from background knowledge from the SQL Server books. But is there any specific areas in which I have to concentrate for the sake of Interview?
Thanks in Advance.
Interview With The Guru
Mar 7, 2008My boss asked me to interview 2 people on Monday for a programmer/developer position. They say they are gurus, but my boss wants me to find out for sure. I thought a question about bitwise operations would be good, maybe one about semi-joins. Are there any questions you can think of that will spot the phony pretty quick?
Thanks,
Jim
Some Interview Questions
Mar 29, 2008Hi to all. Recently i attended an interview .I have so many doubts ,could any one tell me about these questions.
1.) How to identify a query which is used by end user with out profiler. (the exact query)
2.) my tempdb is full what to do.
Then i said i will restart the server
then he asked My company is not allowing to restart the server.then what we can do?
3.) Transaction log is full what to do ?
4..How can we improve the performance of database.
5..how to rebuild the master database if it is corrupted.
6.. what new features are introduced in log shipping in 2005.
7..how can we give a permission to a userto use only profiler. he is not allowed to do any operations
8..after finding long running queries the next stop what we can do?
9..what i can do if my secondary database is no in sync with primary database in log shipping.?.
10..if the quereader agent fails will the transactional replication completely fails or partially fails.
11..how to replicate identity column in merge replication?
Waiting for ur replies,
Sripathi
DBA Interview Questions
May 29, 2006DBA Interview Questionshttp://quickdba.blogspot.com/2006/0...-questions.htmlVisit for more Articles
View 3 Replies View RelatedInterview Question
Feb 6, 2008
I've met an interview question. How to do when you need to add an normal column to a very large table? what should you do carefully?
Thanks.
Job Interview Question
May 13, 2007I have been asked by a person who is going to interview me to supply this informationl;
'Come prepared to be able to talk me through how to set up an SQL driven .NET website on a server.
You are given a webroot folder containing root files such as the web.config and all the files for a .NET website and a data folder which contains an .mdf and .ldf files.
Talk me through what each of these folders contain and what you would do with them in order to set up the website on a server such that you would be able to open a browser type the URL you have configured and visit that website.'
I come from a Cisco background and no nothing about what she is asking. Is it unreasonable of me to expect to be able to gain this information in 2 days? Can you tell me the best place to look for this knowledge?
Thanks for any help.
Sql Server Performance Tuning Tips
Jun 9, 2008Hi everybody,
i would be thankful if anybody posts some references of the web sites
which relates to SQL Server Performance tuning.
Thanks in Advance
Suresh Kumar Goudampally
Is There A Good Website With SQL Index Tips?
Aug 27, 2004I've created a few indexes on my tables but before I over-do it I wanted to see if there were any good websites out there with recommendations. My plan is to create clustered indexes on my primary keys and non-clustered for each foreign key. Also there are a few fields that are regularly searched so I will index them separately as well.
I don't want too many though because I know that affects the performance of record inserts. I'm also not sure about using multiple keys in one index.
Is there a good site out there with tips on what indexes to create or avoid, or have I pretty much covered it?
Optimizing Query - Product Tips
Jan 6, 2004Hello everyone!
I've got a problem with a real slow query, I would be very happy if somebody has any idea to improve the speed of it...
The idea is to get the top 2 products, a customer hasn't bought wich are in his interest...
query (simplificated)
-------------------------------------------------
SELECT TOP 2 prodID, Title, Price FROM bestSold7Days WHERE
prodID NOT IN (SELECT prodID FROM orders INNER JOIN orderProducts ON orders.orderID = orderProducts.orderID WHERE (orders.custID=394))
AND
(prodType = COALESCE((SELECT TOP 1 products.prodID FROM orders INNER JOIN orderProducts ON order.orderID = orderProducts.orderID INNER JOIN products ON orderProducts.prodID = products.prodID WHERE (orders.custID=394) GROUP BY products.prodType ORDER BY SUM(orderProducts.PCS) DESC), 2))
-------------------------------------------------
end query
(COALESCE is for replacing if the customer hasnt ordered anything, or hasnt ordered anything of this type)...
Thanks for any time spent!
TIPS On How To Access Ms Sql Server From Vb6 Faster
Apr 1, 2004please post your idea, experiences what is fastest way to maniulate ms sql server using vb6 .
thanks...
T-SQL (SS2K8) :: Indexing Tips For MIN And MAX In Queries
Jun 6, 2014Are there any best practices for indexing to support queries with MIN() and MAX() in them? what if MIN() and MAX() are partitioned? Super bonus question: what if MIN() and MAX() are not only partitioned, but are called on a field in a derived table, and one of the partitioning elements comes from a table that's being joined in the derived table?
I experimented with inserting the derived table into a temp table, putting a POC index on that, and querying out, but that actually took longer.
Moving From SQL 7 To SQL2005 Express- Any Tips?
Dec 1, 2005We are coming out of the dark ages with our app using SQL 7 and, following the excellent advice of the folks here on SQLTeam, installing SQL 2005 Express on our new webserver.
Not being terribly fluent in all things SQL, I was wondering if anybody could provide input on the best practices for getting SQL 2005 Express going on the new server.
So far I've:
- Installed SQL 2005 Express
- Downloaded and "installed" the SSEUtil for CMD line instructions
- Downloaded and installed the graphical management interface (very nice, makes me feel more comfortable - like SQL 7 console!)
- Copied backup files (made using SQL backup maintenance) to the new server
Should I simply create an empty db of the same name on the 2005 server and then restore the 7 data? Or ????
I searched briefly for previous posts of this nature and didn't find too much info so I hope I'm not duplicating effort here...
Thanks in advance for any advice!
Mmmmmkay. Yeah, did you get the memo about the TPS reports?