1
vote
1answer
34 views

Looking for ideas on maintaining data warehouse in close to real-time - ETL tools, etc

I have done a fair number of traditional data warehouse implementations where the loads were done in a batch-oriented manner, i.e. the data is refreshed nightly or, at most, every few hours. I now ...
0
votes
0answers
20 views

How can I find which records of `Data Warehouse` must be updated according to CDC captured changes? [on hold]

I use SQL Server 2012 for OLTP Database and created a Data Warehouse in SQL Server 2012. I design Facts and Dimensions inside Data Warehouse with several Views. Some of my Fact table are made by ...
0
votes
0answers
28 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 ...
0
votes
0answers
29 views

Merge data using Integration Service

Please Consider this scenario: I have a table in my database. I want move this data in my OLAP database using SSIS.I can move all record from my table to OLAP database.The problem is I don't know how ...
4
votes
1answer
130 views

Large difference in disk space used by partitions

I have a partitioned table that contains about 155 million records total. It's partitioned by year and the partitions for both the current and previous years contain about 25 million records each. ...
2
votes
4answers
181 views

SQL Server: Database integration and synchronization

I have n SQL Server databases with the same data schema. On the other hand i have a web application that needs to retrieve, for some entities, the union of the information stored into the n ...
4
votes
4answers
573 views

best ETL design to transfer transaction tables records into the data-warehouse

I have 2 type of tables to populate the data-warehouse with every day, lookup tables or configuration tables with few 100s records, and thats easy where i just truncate and refill the table. but for ...
3
votes
1answer
72 views

Replace column values?

I recently got into SSIS and haven't been able to find what I am trying to achieve anywhere on the web. I am trying to take some rows as input, and then replace one specific column's value with ...
4
votes
1answer
1k views

Importing a large column (8000 chars) from Excel using SSIS

I'm trying to set up a regular import of an excel spreadsheet that we get from a vendor. I'm using SQL 2008 R2 SSIS to import it into a table. The problem connection manager is an OLE DB connection ...
-1
votes
1answer
77 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 ...
3
votes
2answers
448 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 ...
1
vote
0answers
59 views

Transfer data from DynamoDB to SQL server 2008?

I want to transfer data from amazon dynamo DB to SQL server 2008. What are the tools or methods which can be used to do this ?
3
votes
0answers
368 views

SSIS Recordset Destination error

I have an SSIS package targeted at SQL Server 2012. I have it deployed into the Stored Packages in Integration Services and then have a SQL Server Agent job which executes it. The first part of the ...
0
votes
2answers
912 views

Advice for ETL from Oracle to SQL Server?

I'm building a data mart in SQL Server which needs to extract each month from an Oracle database. Currently this is done by exporting to flat files, then running all the inserts/updates in SQL ...
2
votes
3answers
2k views

Inserting rows into other table whilst preserving IDENTITY

I'm performing ETL logic on a SQL Server table. I'm going to be synchronizing data from one table to another. For all of the records that need to be added to the target table based on the source ...
5
votes
1answer
2k views

ETL: extracting from 200 tables - SSIS data flow or custom T-SQL?

Based on my analysis, a complete dimensional model for our data warehouse will require extraction from over 200 source tables. Some of these tables will be extracted as part of an incremental load and ...
1
vote
2answers
958 views

Moving data from Oracle to SQL Server : Table size optimization

I am loading data using SSIS from Oracle to an SQL Server database. One table I moved had a size of 4 MB under Oracle but when loaded to SQL Server, the size grows to 7.96 MB! I analyzed the size ...
2
votes
0answers
279 views

How to do automated archiving for a SQL Server database based on interpretation of database metadata?

I am looking for a solution giving me automated archiving of SQL Server databases based on a smart interpretation of table relationships that is able to archive records from related tables minimizing ...
4
votes
1answer
292 views

Methodology & Architecture to Create ETL Process

What book or webpage can I read the architecture and methodology for creating ETL process? In other words, I'm looking for "how to do it" to create a ETL process when you have many source system to ...
6
votes
5answers
308 views

SSIS ETL Question/Option

In our current prod environment, when the ETL launches, it first checks an environmental variable at the OS level which tells it where the "config" database and table is for it to get the necessary ...
2
votes
2answers
739 views

ETL: extraction strategy for 200 source databases

What is the best extraction strategy for approximately 200 SQL Server 2005 source databases (same schema) for a daily load into a staging area in preparation for data warehouse cleansing, ...
11
votes
3answers
8k views

How do I run a large script with many inserts without running out of memory?

Question: I have a script with around 45 thousand insert from select statements. When I try and run it, I get an error message stating that I have run out of memory. How can I get this script to run? ...
0
votes
1answer
179 views

Using N-Tier in Business Intelligence

I have read that you also can apply N-Tier for Businesss Intelligence based on these criteria: *Presentation *Functional logic *Data What is your experience when you are using N-Tier? // ...
2
votes
3answers
640 views

Is it good idea to change Simple Recover Model into Bulk-Logged on ETL system?

We are having an ETL process which inserts lots of data into tables. This database is set to Simple Recovery Model and the transaction log is growing a lot. I was thinking that would it help to set ...
2
votes
1answer
85 views

Data Extract and submit across the network

I've been given a somewhat vague requirement regarding a data extract process which I need some help with. I'm fairly new to database warehousing etc. but I will try to explain everything relevant. ...
2
votes
3answers
788 views

Loading a FACT table per day

I have a database with 13 billion rows, per day I have around 20-30 mio rows. On top of this I have one cube, one of its dimensions is DateTime that goes down to milliseconds. To load the fact table I ...
4
votes
3answers
932 views

How can I make my SSIS process consume more resources and run faster?

I have a daily ETL process in SSIS that builds my warehouse so we can provide day-over-day reports. I have two servers - one for SSIS and the other for the SQL Server Database. The SSIS server ...
8
votes
4answers
667 views

Is there a standard language/interface for programmatic ETL in SQL Server?

I'm currently in the process of creating ETLs for our data warehouse. We're using SSIS 2008, but we're running into issues, the biggest of which is the difficulty in re-using components. We have ...
4
votes
1answer
122 views

Is there a non-DDL way to preserve back-references when staging data into production?

Let's say I've got this hypothetical schema: Source (OLTP) DB: Table Orders ------------ OrderID int IDENTITY (PK), CustomerID int NOT NULL, OrderAmount decimal NOT NULL Destination (DSS) DB: ...