Good Afternoon.
I have one question about clustered index.
The clustered index have one architeture such as be-tree...
What's the intermediate level on the clustered index?
Thanks..
In May of this year I graduated from Penn State with a BS in IST (Information Sciences and Technology). Right after graduation I got a database programming job with a company that uses Delphi 6 and MS SQL Server 2000.
I've been working with this company for six months now but I'm still not very good with SQL. I can do basic SQL queries and table joins (as well as use datetime functions and cursors), but I'd say I'm only at an intermediate level (at best).
So... I'm looking to learn more about SQL. I'm guessing a good SQL reference book would help, but I'd really prefer a good book that actually teaches you and guides you along. The only problem is that I don't want a basic/beginner level SQL book since I already know all of the basics.
Can anybody recommend anything for me?
Thanks!
In May of this year I graduated from Penn State with a BS in IST(Information Sciences and Technology). Right after graduation I got adatabase programming job with a company that uses Delphi 6 and MS SQLServer 2000.I've been working with this company for six months now but I'm stillnot very good with SQL. I can do basic SQL queries and table joins (aswell as use datetime functions and cursors), but I'd say I'm only at anintermediate level (at best).So... I'm looking to learn more about SQL. I'm guessing a good SQLreference book would help, but I'd really prefer a good book thatactually teaches you and guides you along. The only problem is that Idon't want a basic/beginner level SQL book since I already know all ofthe basics.Can anybody recommend anything for me?Thanks!
View 2 Replies View RelatedHi,
I am writing a BI solution for a recruitment company. In their
business, the can be n number of participants from different
dimensions linked to the same fact record. For example, a client can
be sent the CV of 50 candidates. That's my first problem. My second
problem is the variety of dimension participant types for a given fact
record. This results in the need for nullable dimension FK's - which
I'm trying to avoid. For example, consider the following two business
events. In the first one, a candidate fills a job. Easy, we have a
record in the fact table where the fact table has the following
columns: DateKey, EventType, CandidateKey, VacancyKey. No nullable
columns, great. But there are other events that I want to store in
the fact table too. Let's go back to my first example: The client is
sent CV's of 50 candidates in one transaction. So there is one client
linked to the fact, but 50 candidates. So now I need to extend the
fact table and add another column: CandidateGroupKey (which links to
and Intermediate Fact Table). But in this case there was no vacancy
involved. So do I now have to make the VacancyKey column nullable?
That doesn't seem like a good idea...
Or do I have to go for a completely different approach and have
different fact tables instead of just one?
Anyone have any suggestions?
I've been working through a programming diploma the last few years and have a solid foundation in Normalization, SQL, SQL Server, MySQL, Procs, Triggers, etc. Basically I'd say I'm at least a competent junior programmer on the back-end.. able to build simple joins, update data, and research/read/understand documentation.
Right now, and at the start of the year I was in a co-op term where I got some industry level SQL experience, so I know what a legitimate database looks like, and I've seen some scary looking procs. And now I've found that I quite enjoy working in SQL land and I'd like to take my skills up a notch.
With that said, the only method I can think of to improve my SQL skills is to find a sizeable sample database to load into SQL server, hopefully with corresponding exercises, and then to code those exercises.
Quick question. I am in the NYC area (Westchester) and I am using Cognos DecisionStream to build my SQL Server 2000 Enterprise Data Warehouse.
I want to learn more about complex SQL, specifically for SQL Server.
What do you reccommend? Should I go for strictly an advanced SQL course, or should I go for SQL Server training.
Does anyone know of a really good site where I can find Advanced SQL training?
Also, I want to learn more about scripting and VB. Can anyone reccommend a place where I can get this beginner training.
Sorry to take up your time, but to sum up:
1. Advanced SQL training in NYC area
2. Beginner VB training in NYC area.
Cost is not necessarily an issue.
Thanks!
I have one SP in which I am opening transaction and on fail I am rolling back transaction.
Is there any way I can preserve data in temp table before failing record.
I means to say At record no 21 get failed I need to see 20 records in any temp tables.
At this link here:
http://www.microsoft.com/technet/prodtechnol/sql/2005/dwsqlsy.mspx
I read this snippet here:
Push data from the Integration Services pipeline or a custom application. The data can flow directly into an Analysis Services partition from the Integration Services package pipeline, without intermediate storage. This scenario can be used to reduce the latency (and storage cost) of analytical data.
What I think this means is that using SSIS I could bypass porting the data from ODS to DW, and instead use SSIS control flow/data flow components to direct the data straight to the Analysis Services Cube database storage partition.
I was hoping by posting this thread on this MSDN forum I could get details or links from those more knowledeable than I on this subject pointing me to how I may go about using SSIS to implement this approach. Perhaps package code examples or instructions about the components I could use to do this?
I have started working on SSAS since last week, I need to perform some calculations on the data fetched from the cube based on the parameters. SSRS is used to display the output and SSAS is used as a data source.
How i could perform the operations on the data fetched from the cube in SSAS? Does SSAS provides the storage structure like temp table in stored procedure where we can perform the various operations before sending final data back to the client side tool(SSRS)?
OR Is there any alternative way to perform the operations based on the input provided through the parameters
is there a way to query an excel spreadsheet directly from sql without using ssis or excel macros?...and without saving the spreadsheet to a table first?
View 5 Replies View RelatedHi,
I'm just starting off in SSIS and have a question that I can't find an answer to...
I'm loading in a number of files (in separate Data Flows) and performing some transformations on them before merging them back together. What I'm not sure about is what I should be doing with the data at the end of each of my "Import Data From XXXX Flat File" Data Flows. Am I better off using OLE DB Destinations (or SQL Server Destinations) and saving this intermediate data to temporary tables, or am I better off using a Raw File Destinations and saving this intermediate data to files? Or is there, perhaps, a better option that I'm currently unaware of?
If the Raw File Destination is the way to go, then isn't there a maintenance issue with cleaning up all the files created? And will there not be a management issue to ensure that there is sufficient disc space available on the drive you are saving to?
I'm a bit confused and overwhelmed by SSIS at the moment, so any help would be much appreciated!
Thanks in advance,
Lawrie.
I want to perform column level and database level encryption/decryption....
Does any body have that code written in C# or VB.NET for AES-128, AES-192, AES-256 algorithms...
I have got code for single string... but i want to encrypt/decrypt columns and sometimes the whole database...
Can anybody help me out...
If you have Store procedure in SQL for the same then also it ll do...
Thanks in advance
Hi,
AM in need of SSRS 2005 design documents for a project purpose. Can somebody let me know where can i find these documents? Thanks in advance
When you utilize transactions in ADO.NET are the locks put on the entire TABLE used or at the row level?
For instance if you do a SELECT within a transaction if you only pull 5 rows out of a 1000 row table can you just make it lock the rows that have been pulled? It seems like it locks the entire table?
Thanks
Hi, Can anybody please explain me, what is low level and high level locking in SQL Server 2005 database.
Also what is the name of process which converts low level locking into high level locking and vise versa.
-Sanjeev
Hi..I'd very much appreciate it if someone would tell me how to translatea statement level trigger written in Oracle to its equivalent (if there isone)in MS SQL Server. Ditto for a row level trigger.If this is an old topic, I apologize. I'm very much a newbie to SQL Server.Regards,Allan M. Hart
View 2 Replies View RelatedProblem setting is a geography dimension with multiple user defined hierarchies in SSAS 2008.
Ex.:
Hierarchy 1 (political territory): level 6 --> level 5 --> level 4 --> level 3 (state) --> level 2 --> level 1
Hierarchy 2 (sales territory): level 4 --> level 3 --> level 2 (sales region) --> level 1
...
Hierarchy 9
The relationship between state and sales region is n:1, i.e. one state belongs to exactly one sales region, and one sales region can consists of one or multiple states. Unfortunatly I can't define this attribute relationsship in the dimension because it would lead to a diamond-shaped relationsship without a user-defined-hierarchy to back it up. So far that isn't much of a problem, user don't drill down from sales region to state. But now I want to define a calculated member that multiplies a measure from the main measure group with another measure from a weighting factor measure group at the state level and above. The granularity attribute of the geography dimension in the dimension usage tab of the weighting factor measuregroup is the state.
So far what I've got is:
CREATE MEMBER Currentcube.Measures.[weighted measure state and above] AS NULL;
SCOPE (Measures.[weighted measure state and above],
Descendants(geography.[political territory].[all member],3,SELF_AND_BEFORE),
Descendants(geography.[salesterritory].[all member],2,SELF_AND_BEFORE),
... Descendants(geography.[hierarchy 9].[all member],1,SELF_AND_BEFORE)); this = sum(existing(geography.[political territory].state.members), measures.[main measure group measure] * measures.[weighting measure group measure]);END SCOPE;
This works from a functional point of view, but is rather slow when querying any other hierarchy than the political territory hierarchy, because SSAS first goes down from the state level to the key attribute of the geography dimension, and then aggregates from there to the sales region.In other words, I want SSAS to resolve the relationsship (which state belongs to which sales region) through the dimension, and not through the fact, and apply the calculation afterwards. Like some kind of currency conversion, but only from a certain level upwards.
The problem that I am having is that with Visual Web Developer I am creating a webpage and having it directly put online, so for example when I start a new ASP.NET page, I select the location to be HTTP, with the location http://MYWEBSERVER/Website and for the language and Visual BasicI notice a couple of things, first that there is no longer a a link under the Main toolbar "Website" selection called the ASP.NET configuration. So how can I configure what I want to have users be able to do? It seems that this choice is only available if I am building the ASP.NET page on my "localhost". So that is the first problem. So I am able to get the pages to work, atleast the things such as the textboxes to show up etc, (Even things as advanced as the "Login" box). How ever when I try to get someone to try to login I am taken to a page that has an server error. The error is:
"The SSE Provider did not find the database file specified in the connection string. At the configured trust level (below High trust level), the SSE provider can not automatically create the database file. "
The Stack Trace Errors are at the bottom. I think this is happening because the automatically generated databases are not getting built online as they are on my computer. On my computer I have MSSQL express. So either the databases are not getting built for some reason, (and I think that is the case as I don't see any in the folder). So I think that somehow I have to create a database on my server, and then somehow configure the ASP.NET file, perhaps in the Web.Config file to look for that new database. Is this the correct methodology? Is there some simpler way that I can just somehow upload things as they are and have them work correctly on my server? The error says that either the Server did not find the database or that the trust level was insufficient. I don't think that is it as I just looked again and I don't see any .MDF files. So how would I go about getting this to work right? Is there a way to do this with MySQL also? So that I don't have to use MSSQL? My server only allows 1 DataBase for that.
Thanks and I hope my question makes sense. It is basically how can I get it to be able to create and check users etc. online?
Brian
[ProviderException: The SSE Provider did not find the database file specified in the connection string. At the configured trust level (below High trust level), the SSE provider can not automatically create the database file.] System.Web.DataAccess.SqlConnectionHelper.EnsureSqlExpressDBFile(String connectionString) +2555237 System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +87 System.Web.Security.SqlMembershipProvider.GetPasswordWithFormat(String username, Boolean updateLastLoginActivityDate, Int32& status, String& password, Int32& passwordFormat, String& passwordSalt, Int32& failedPasswordAttemptCount, Int32& failedPasswordAnswerAttemptCount, Boolean& isApproved, DateTime& lastLoginDate, DateTime& lastActivityDate) +1121 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved, String& salt, Int32& passwordFormat) +105 System.Web.Security.SqlMembershipProvider.CheckPassword(String username, String password, Boolean updateLastLoginActivityDate, Boolean failIfNotApproved) +42 System.Web.Security.SqlMembershipProvider.ValidateUser(String username, String password) +83 System.Web.UI.WebControls.Login.OnAuthenticate(AuthenticateEventArgs e) +160 System.Web.UI.WebControls.Login.AttemptLogin() +105 System.Web.UI.WebControls.Login.OnBubbleEvent(Object source, EventArgs e) +99 System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35 System.Web.UI.WebControls.Button.OnCommand(CommandEventArgs e) +115 System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +163 System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7 System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11 System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
Does anyone know if SQL Server 2005 as a built-in way (sp or func) to calculate a row-level CRC?
View 2 Replies View Relatedlets say user1 is reading row1, then user2 reads and updates row1, when user1 is about to update row1 i want him to be informed that his copy of row1 have been updated, so he has now the options to either get the new version of row1 or cancel his update process.
View 4 Replies View RelatedHow can i write a trigger which gets fired for each row that is being deleted
i.e. Row level Trigger
I tried something like this
ALTER TRIGGER [dbo].[Del_Msg]
ON [Seat27].[dbo].[Email_Messages]
AFTER DELETE
&.......
it gets executed once for the triggering SQL statement
In a Stored Procedure, I created a table in code:
CREATE TABLE TEMP ( ...)
, then ALTER TABLE TEMP ADD int1 int, varchar2 varchar(25)
I inserted some rows to the above table. Everything looks good.
Here's what puzzled me:
SELECT * FROM TEMP shows all the rows inserted.
But
SELECT int1, varchar2 FROM TEMP caused this error:
Server: Msg 207, Level 16, State 3, Line 5
Invalid column name 'int2'.
Server: Msg 207, Level 16, State 1, Line 5
Invalid column name 'varchar2'.
Thanks for any help.
I have a busy transactional table , I wanna use row level locking mechanism in msSQL.
SELECT * FROM PARTY WITH (UPDLOCK ROWLOCK)
where LastName ='Clinton'
is there any downsides of this approach?
I am looking for a way to implement row level security on my SQL Server 2005 Express database. Thanks in advance for any input.
View 1 Replies View RelatedHi,
I am asked to look into a DB which was upgraded from SQL65 to SQL70.
Problems:
1.The SQL was renamed from Server_old to Server_NEW.The Sysservers tables still have entry with Server_old name and srvid = 0(local).The server is running with this config.from last few months w/o any problem(this is what the present DBA working on this DB says)...whereas the name has changed from server-old to server_new.
2.2 user DB on this Server has compatibility level of 65.Any suggestion as should I set the compatibility level to 70 or leave it as it is.client is planning to first,go for replication from sql70/EE to SQl70/EE on Nt4/SP6.
Second,they are also planning to upgrade to sql2k.
Any thoughts appreciated.
Is there a way to change the default isolation level at the SQL Server level to READ UNCOMMITED ??
View 2 Replies View RelatedHow do I check the compatability level of a database?
The db in question was originally created in SQL 6.5 and converted to 7.0. Would this have reset the compatability level to 7 or left it at 6.5?
If it is at 6.5 what are the implications of changing it to 7?
Ray, if you answer this can you please forward me your email address. Thanks.
I used sp_indexoption to allow row locks and disallow page locks on all indexes of a heavily contented table (lots of concurrent selects/inserts/updates). The first error I saw was "The SQL Server cannot obtain a LOCK resource at this time. Rerun your statement when there are fewer active users or ask the system administrator to check the SQL Server lock and memory configuration.". I restarted the sql server and everything is ok (the server is not very powerful and will be beefed up).
My question is that with the above settings, will the select statements acquire row-level shared locks as well? Since our select queries are fairly complicated, my main concern is that we may frequently run of of resource even with a more powerful machine. Is my concern valid or I got everything wrong?
Thanks a lot.
Hi there,
yes, There is a 'insert row level locking' but
Is there anything for delete or update row level locking?
We keep geting deadlock problem with our application with multi-users. First we ran into the deadlock on INSERT. By setting 'insert row level locking' help us to go a little bit further but later we run into deadlock with DELETE. For my knowlege, DELETE and UPDATE requires exclusive page lock. Might be I am out of date.
Thanks in advance for your help
Tung Nguyen
Hi, folks. Please guide.
I have a VB application that is used for production and reporting. I 've been having alerts for deadlocks that popup after every 2 or 3 minutes. I am planning to seperate reporing server by using transactional replication from production server to the reporting server. However some reports update and insert data so i need reporting server to be enabled for DML.
Is there any option on the server-level where i can force each user to operate in READ-UNCOMMITTED mode instead of specifying WITH (NOLOCK) in the queries of my application. Dirty reads won't bother me in current situation, i guess the propotion of fast reads would be a better trade-off.
New to SQL, Thanx for helping!!
Howdy.
How can I apply security on row level ?
I want to use internal SQLSever users and roles.
Some users or roles should have only access to a limited numbers of rows.
The table contains a field "Company" and there are several companies.
The users should have acces only to their own company.
Thanks
Hi guys,
On a new server with 4 disks, what level of raid is best to apply. In terms of what's important, I'd say speed is at the top of the list.
BJ
i need something exactly like the following example but with 3 levels self join : http://databases.about.com/od/sql/a/selfjoins.htm
what i mean by 3 levels is that consider that relation like
Director >>> Manager >>> Employee
so the output will look like :
dir1 mgr1 emp1
dir1 mgr2 emp1
dir1 mgr2 emp2
dir2 null null
dir3 mgr1 null