Simple and conventional OLTP database, we need to capture all changes for insert into a DW via staging / ods etc.
Is there a recommended approach for this? Obviously it has to be real time as there might be multiple updates for a time period. I'm thinking of triggers on OLTP tables (bad for performance as it's synchronous), or change data capture, service broker as asynchronous methods.
Hello,friends
1) CustomerID
2) FirstName
3) MiddleName
4) SurName
5) Title
6) Marital Status
7) Education
8) Occupation
9) Annual Income
10) Line of Business
11) DOB
12) Father Name
13) Mother Name
14) SpouseName
15) Gender
16) Email
17) MainTel
18) Home Tel
19) Passport Number
20)----------------------
21)- - - - - - - - - - -
100)-------------------
Above mentioned list is a snapshot of our customer master table ,which contain approximately 100 attributes related to a customer.
We are designing an application for banking sector (but NOT Core banking solution),for which we may need to capture variable number of addresses for bank's customer,i.e more then three types of addresses Fixed,Temporary and Communication addresses(which is generally the case with all banks).
A single address includes address1/address2/city/country/state/pincode fields.
In context of OLTP database,We have option to put multiple addresses in child table but that involves various joins at the time of data retrival and slow down the query.
As another option we can can create redundent addresses columns(address1/address2/city/country/state/pincode) in master table that will accumulate addresses if demand for more then three type addresses arises(although there is reasonable numer of extra addresses is expected, i.e 10)
Database is expected to serve the records of 25 million(approx) bank's customer,so does someone can suggest me how to maintan the balance between two approches.
Hi all,
this is more of a design issue for a History table.
Suppose if i have a transaction table and then based on the transactions i want to keep a history of those do i need to define Primary Key and Foreign Key for history table.
Regards,
General Problem
I am running a website of crossword puzzle and Sudoku games. The website is designed to be:
There are 20-30 games onlines each day.
Every registered user could play and submit the game to win scores.
For each game, every registered user could get the score for ONLY one time. i.e., No score will be calculated if the user had finished the game before.
To avoid wasting time on a game finished before, user will be notified with hint message in the page when enter a already finished game.
The current solution is:
3 tables are designed for the functions mentioned above.
Table A: UserTable --storing usering information, userid
Table B: GameList --storing all the game information.
Related fields:
GameID primary key
FinshiedTimes recording how many times the game has been finished
Table C: FinishHistory --storing who and when finished the game
Related fields:
GameID ID of the game
UserID ID of the user
FinishedDate the time when the game was finshied
PS: Fields listed above are only related ones, not the complete structure.
Each time when user enters the game, the program will read Table B(GameList), listing all the available game and the times games have been finished. User could then choose a desired game to play.
When user clicks the link and enter a page showing the detail content of the game, the program will read Table C(FinishHistory) to check whether user has finished this game before. If yes, hint message will be shown in the page.
When user finishes the game and submit, the program will again read Table C(FinishHistory) to check whether user has finished this game before. If yes, hint message will be shown in the page. If no, user will get the score.
Existing Problems:
With the increase of game and users, the capacity of Table C(FinishHistory) grows rapidly. And each time when a game is loaded, the Table C will be loaded to check, and when a game is submitted, the Table C will be loaded to check again. So it is only a time question to find out Table C to become a bottleneck.
Does any one here have any good suggestions to change / re-invent a new structure or design to avoid this bottleneck?
I have taken on a contract to improve reporting for an old HR database that was developed using FoxPro (Visual FoxPro, I think) with the data stored in SQL Server 2000. There are no foreign keys in SQL Server 2000 so the relationships are maintained inside FoxPro.Is there a way of extracting the relationships from the FoxPro code and generate foreign keys in SQL Server, so that I can do proper design?
View 7 Replies View RelatedIs it possible / advisable to use Sql Server as the backend database for handling 40 million transactions,
taking around 8 GB space?
hello everyone,
Is it make sense to create 2 databases, OLTP for the insert, update and delete and OLAP for selection
and i'll sync between the 2 databases.
Thanks
hi. i dont understand what they mean when they say developing oltp solutions. can anybody pls explain it to me. also does anyone know what ways there are to develop sql oltp solutions using SQL 2005 reporting services, OLTO, Excel Services. as well as any good tutorials for it?
thanks for the help.
Whilst on the Nth hour (n = many) of my magical journey through MS Sql BOL I've come across OLTP Vs Decision Support. After a couple of searches here could someone shore up the following for me please...
A decision support database is the same as warehouse database.
This is for static data commonly used for reporting and analysis.
OLTP is a live database (accomodates inserts, deletes, updates etc).
Is that right?
Also would it be fair to assume that a decision support database is generally going to be spawned from the historical data of an OLTP database? Any real world examples of these two terms would be greatly appreciated too.
Cheers
Dan
Greetings All, I was wondering if any of you would share some of yourexperiences regarding the task of loading a data store from an Oltpsource. We are using Analysis Services in a BI product that requiresdata to be pulled from one of our products, an OLTP database. Thedesign is to first run an ETL process from the OLTP source into anoperational data store, from here Analysis Services will pull its datato do its thing. Now, for small OLTP databases (< 1Gb) the storedprocs I have written to do the extraction works well, it is relativelyfast and efficient. However, we have a few databases that are 10Gb'sand the load could end up taking several hours. During this long loadthe OLTP source may be in use and I want to avoid write blocks, or if Iwere to use "select ... NOLOCK" I could get dirty data brought over. Icould used BCP for some of the big tables or Bulk Copy but I wanted tosee if anyone has dealt with this issue and what their specificresolution was for their specific problem. It is my hope that byseeing how others have dealt with this I will be able to architect asolution for my specific problemRegards, TFD.
View 1 Replies View RelatedI want to know the basic dfferences between these 2 (OLTP and OLAP) ?
View 3 Replies View Relatedwe are using an object database for our OLTP but for reporting we have
got some issues about performance as the cpu becames a bottleneck.And
we want to be able to run on low end computers...
One of our team members suggested to replicate the object database to a
SQL table.But just a single one.The most denormalized thing ever.(358 coloumns)
is this the fastest way we can get in reporting?
*we don't want harddisk,ram or cpu to became a bottleneck. ( must run on cheap staff)
Interested in feedback from the SQL grand wizards (and would-be wizards) that haunt these forums.
Let's say you need to constantly stream data into an OLTP system. We are talking multiple level hierarchies totaling upwards of 300 MB a day spread out not unlike a typical human sleep cycle (lower data during off-peak, still 24/7 requirements). All data originates from virtual machines running proprietary algorithms. The VM/data capture infrastructure needs to be massively scalable, meaning that incoming data is going to become more and more frequent and involve many different flat record formats.
The data has tremendous value when viewed both historically as well as in real-time (95% of real-time access will be read-only). The database infrastructure is in it's infancy now and I'm trying to develop a growth plan that can meet the needs of the business as the data requirements grow. I have no doubt that the system will need to work with multiple terabytes of data within a year.
Current database environment is a single server composed of a Dell PowerEdge 2950 (Intel Quad Core 5355, 16 GB RAM, 2 x 73 GB 15K RPM SAS ) with an attached Dell PowerVault MD1000 (15 x 300 GB 10K RPM SAS in RAID 5+0 [2x7] w/hot spare) running Win 2k3 64-bit and SQL Server 2005 x64 Standard, 1-CPU.
I am interested in answering the following questions:
Based on the scaling requirements of the data capture and subsequent ETL, what transmission method would you find most favorable? For instance, we are weighing direct database writes via stored procedures for all VM systems versus establishing processes to collect, aggregate and stream CSVs into a specialized ETL environment running SSIS packages that load data and then call SQL Stored procedures to scrub and prepare for production import. The data will require scrub routines that need access to current production data, so distributing the core data structures to multiple ETL processing systems would be expensive and undesireable.
Cost is very important to the overall solution design. In terms of database infrastructure, how would you maximize business value while keeping cost as low as possible? For instance, do you think there is more value in an ACTIVE/ACTIVE cluster (2 x CPU licenses) where one system acts as ETL and the other as OLTP or would you favor replication of production data from ETL to OLTP or (vice-versa). With the second scenario, am I mistaken in thinking we could get away with a Server/CAL licensing model for the ETL server?.
Are there any third party tools that I should research that would greatly aid me here?
I appreciate all feedback, criticism, and thoughts.
Best Regards,
Shane
Hi al,
I need some steps to create OLAP DB .
Actually i have OLTP Db . i created SSAS soln and created cube with necessary dimensions . i deployed it on SSAS instance of management studio.
my qn, is the instance created under SSAS instance OLAP?.
pls provide me steps to have a OLAP database...
Thanks,
Nav
I was wondering if it is possible to use SQL Server Reporting Services 2005 with the 'writeback' feature to the source OLTP database?
I have seen article's that refer to using SQL Server Analyses Services (SSAS) and writing back to the ROLAP/MOLAP database, however this is not desirable for our case.
I have almost come to the conclusion that it is not possible without SSAS.
Cheers,
How many no of records of the tables are called large tables.
We are getting more deadlocks. We are using default isolation. Read & insert statements are blocking each other and causes dead locks.
I am thinking that might be purging will reduce deadlocks.
The table has 15million records. Is this table consider as large table or not in OLTP systems?
In general how many records we need to consider as large table.
I have been looking at implementing a tabular model based on an OLTP database that's not dimensional. I know that this is possible but during my proof of concept I have encountered numerous problems ...
The things that I have run into are: After setting up the relationships I have found that measures filter context don't propagate along the relationships as I would expect. if the measure is coming from a target table and not a source then an ALL member is returned ( as in multi dimensional when a dimension isn't related to a measure group). Given the lay out of an OLTP database this will be hard to avoid.
One thing I have done to try an mitigate the above problem is to combine the tables used for measures in a view and using that in the source to connect to the rest of the tables. however due to the tables being of different grains this has then created duplication in some of the keys and measures. so the keys cant be used in relationships and the measures aren't accurate.
Are these things other people have come across? or should I give up the ghost and just recommend using dimensional models for the source? is tabular just geared towards a DW the same as multidimensional?
I want to create a mirrored DB set for data entry in a extremely busy OLTP DB. I want to add transactional replication between the production server and a staging server outside my quorum that I will use to index the data and prepare it for reporting and warehousing purposes.
If/when fail-over takes place, what happens to my transactional replication between the former production sever (now presumably offline) and my staging DB? Does it switch to the new production server automatically or do I have to manually set the replication between the new production server and the staging DB?
Thanks in advance.
We have a live OLTP database for which we create full backups every week and differential backups every day. Recently we added an OLAP database, which we need to update daily with changes from the live database.
This is the process we are planning to use.
1. Restore last full OLTP backup.
2. Apply the last differential OLTP backup.
At this point we should have a replica of the live OLTP database.
3. Update OLAP database based on the OLTP replica database.
4. Delete the OLTP replica database.
Two questions.
1. If different from the process above, how is this OLTP-to-OLAP transformation typically done in the industry?
2. What is the best way to implement this process with SQL Server 2005?
Thanks.
Question: Is it feasible to use a star schema dimensional model for an OLTP system that incurs few (750 per day)Sales Orders transactions?
Background: My customer wants to replace an existing OLTP system database because it runs on Oracle and their in-house expertise is in SQL Server. The original database developers that designed the Oracle DB have apparently retired. The Oracle database has been over-normalized, to say the least. The number of sales orders being entered daily is small: about 500-750 per day. These entries are done at the five clerks' convenience, from a paper form, and are very unlikely to ever be entered in quick succession. Nothing else gets regularly entered into this database except for the occasional change to a customer, but new customers are very few and far between.
I've designed a star schema for the replacement database with the Sales Order Header and Sales Order detail table combined into a single 'fact' table, and I've introduced some duplication into dimension tables (like customer) in order to eliminate some of the joins (and confusion) that were built into the original database.
I've never tried this before. Is there any reason this would not or should not work?
We had one of the major issues where one of the table on a heavily used OLTP database seems to have updated the records which were not expected.
Scenario:
We got around more than 12K contracts updated to status expired even though the expiry date is not set to be so:
for E.G : Below table has a column contract status which overnight seems to have updated the values to expired.
Even though the start and expiry date does not follow the logic for above.
We had the above working for past 3 years via a SP scheduled via SQL agent Job which Expire active contracts whose expiration date is less than today's 12:00AM.There has been no change in SP.
How can i track how it happened and what caused it?
1. I need to make use of in memory engine for my pr-existed develop procedures ,tables ,index. do I need and code changes for application and how to store tables /indexes in OLTP memory
Assume table index may have primary key index as well.
2. If table with one primary index and 2 foreign constraints, 3 non clusters indexed. which one able o load to memory area and how t do that.
3. In memory is lock free zone. usually locks will happpen in RDMS context . how this works without locks.
Hello,Can I import an OLTP (Reltional DB) as a Data Source into SQL ServerAnalysis Services 2005 and then use the Cube Wizard and the new DataSource View feature to create the OLAP model ?Or do I have to first design an OLAP Data Warehouse with a Star Schemaand then import this DW as a Data Source into my Analysis ServicesProject.With SQL Server 2000 , OLAP would be the way to go..but with SQLServer 2005 , it seems as though the wizard and data source viewfeatures do half the work for you.I have an OLTP DB and am not sure which route I should take ! Anysuggestions / input would be much appreciated.Thanks in Advance...RegardsRusszee
View 1 Replies View RelatedHow to write Stored Procedures to load the Data Model from OLTP to DWH ?
View 9 Replies View RelatedSQL Server In Memory OLTP 2014?
View 6 Replies View RelatedI have a scenario like below
Product1
Product2 Product3
Product4 Product5
Product1 1
1 0 0
1
Product2 1
1 0 0
1
Product3 0
0 1 1
0
Product4 0
0 1 1
0
Product5 1
1 0 0
1
How to design tables in SQL Server for the above.
Hello folks,
have you ever heard of an Active/Active SQL Sever 2000 Cluster deployed in a pure OLTP environment?
Some 8 years ago I have learned about a bespoke solution for the SAP ERP system (not the BW!) with DB2 Parallel Server for a huge German company. Then again, I would expect that Oracle RAC might fit into an OLTP environment, although I never heard about a real world implementation.
All this led me to believe clustering is good for failover purposes, and for decision support services, not quite for OLTP applications.
So if you see a point in Active/Active Clustering and OLTP please come forward and explain.
Cheers,
Johann
P.S: For those of you who want to know: Consultants from www.hiltes.com want us to deploy an Active/Active Cluster for their Fashion 3000 Net stock software.
Have a column with the following dataa
fname.lname
fname1.lname1
Now I need to seperate the fname & lastname into 2 different columns how to do this
please help
thanks
Ok, I'm doing a football database for fixtures and stuff. The problem I am having is that in a fixture, there is both a home, and an away team. The tables as a result are something like this:
-------
Fixture
-------
fix_id
fix_date
fix_played
----
Team
----
tem_id
tem_name
-----------
TeamFixture
-----------
fix_id
tem_id
homeorawayteam
goals
It's not exactly like that, but you get the point. The question is, can I do a fixture query which results in one record per fixture, showing both teams details. The first in a hometeam field and the second in an away team field.
Fixture contains the details about the fixture like date and fixture id and has it been played
Team contains team info like team id, name, associated graphic
TeamFixture is the table which links the fixture to it's home and away team.
TeamFixture exists to prevent a many to many type relationship.
Make sense? Sorry if this turns out to be really easy, just can't get my head around it at the mo!
I would like to create a table called product. My objective is to get list of packages available for each product in data grid view column while selecting each product. Each product may have different packages type (eg:- Nos, CTN, OTR etc). Some product may have two packages and some for 3 packages etc. Quantity in each packages also may be differ ( for eg:- for some CTN may contain 12 nos or in other case 8 nos etc). Prices for each packages also will be different that also need to show. How to design the table..
Product name :
Nestle milk |
Rainbow milk
packages :
CTN,OTR, NOs |
CTN, NOs
Price:
50,20,5 |
40,6
(Remarks for your reference):CTN=10nos, OTR=4 nos
| CTN=8 Nos
hello,
I'm running my user database on a SQL Server 2000. I would like to extract all the indexes from the database and I was wondering, how can i do that. I dont see an option for doing this.
Appreciated If someone out there help me please.
Thanks in advance.
Hi,
does anyone know how to extract the date (dd.mm.yyyy) from a date expression with format (dd.mm.yyyy hh:mm:ss) ?
Thx in advance
jolli
hi
I want to select all the dates between 2 dates.ie if i'm passing 17th June and 19th june then it shud give 17,18 and 19.
Like wise if i'm giving 28th june and 3rd july it shud return 28,29,30,1,2,3.
Pls help me.
Thnx in advance
Nebu