I need to merge with 2 different tables from 2 different azure SQL databases where as these two azure sql database are from same azure sql server.
also for performance imporvement purpose, what I need to do is bulk insert and/or bulk update. also, this will be continous activity. for very first time I have to merge all data which is huge. and then whenever respective topic recivies message, I need to add/update that single record only.
what are the different options to do the same. for both processes.
please help. thanks.
You can use Azure SQL Data Sync to merge those tables located on 2 different databases into a third and new database. You just need to create the table with no records, then use Azure SQL Data Sync with one-way sync from those 2 databases (member databases) to the newly created table on the new database (hub database). On the first sync data will be merged on the new table located on the hub database. Every time a record gets updated, deleted or new record arrive on the member databases then that data change is replicated to the hub database and to the merged table.
To know more about the free Azure SQL Data Sync please read here.
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I have an old ERP, which handled many organizations in a single db with a suffix on the tables. Lets say the db name is ORG and the tables look like CLIENTS01, CLIENTS02, CLIENTS03.
The new ERP connects to one database per organization.
The sad thing is I need to use both ERPs, so I need to replicate SAME DB WITH MULTIPLE NAMES: ORG01, ORG02, ORG03.
I was thinking for mirroring but this will increase database workload.
I looked for aliases but didn't find the way to make it work on the same instance.
I tried to create new database and then attach same file MDF file without success.
What would be the simplest way to just create 3 new databases connecting to the same database (1 database, multiple names)?
I am using external table of main database to Datawarehouse database. While selecting data from external table to # table it take almost 9 min, sometime it take more time. How I can improve this performance of external table?
Is to use the following TSQL to perform the query in the external database and get only the data required. The filter will be applied first in the external database, and then the data from the filter will be received by the database.
When you enable the query's Actual Execution Plan option, you can see
that the query : Select * from PerformanceVarcharNVarchar, brings data
from an external database to the temporal database, and then the
engine applies the filter.
Here is the Official Microsoft Documents :EXECUTE (Transact-SQL) | Docs
Else you can use Azure Data Sync : SQL Data Sync is an Azure SQL Database-based service that allows you to synchronize selected data bidirectionally between multiple databases, both on-premises and in the cloud.
The Original Post has got detailed insights: Lesson Learned #56:
External tables and performance issues | techcommunity
I want to insert table from different factory / server in Azure data warehouse. Is it possible to insert by query?
Because it takes a lot of time if I make dataset and pipeline for each table in Azure data factory.
Just from your screenshot, according the icon of the Azure SQL, you're using Azure SQL database, not Azure Data Warehouse.
You could use Elastic Query to do a cross database query in Azure.
Ref the tutorial: Get started with cross-database queries (vertical partitioning) (preview)
Elastic database query (preview) for Azure SQL Database allows you to run T-SQL queries that span multiple databases using a single connection point. This article applies to vertically partitioned databases.
When completed, you will: learn how to configure and use an Azure SQL Database to perform queries that span multiple related databases.
Then you can inset data from external table to current database table.
Note: Azure SQL database already has the master key, you don't need create it again.
Hope this helps.
I am in need of suggestion to move data from a particular table in one azure sql database to the other azure sql database which has the same table structure without using elastic query
Using SQL Server Management Studio to connect to SQL azure database, right click the source database and select generate scripts.
During the wizard, after have select the tables that you want to output to a query window, then click advanced. About half way down the properties window there is an option for "type of data to script". Select that and change it to "data only", then finish the wizard.
The heck the script, rearrange the inserts for constraints, and change the using at the top to run it against my target DB.
Then right click on the target database and select new query, copy the script into it, and run it.
This will migrate the data.
Please consider using the "Transfer SQL Server Objects task" in SSIS. You can learn all the advantages it provides on this article.
You can use PowerShell to query each database and move data between them as needed. Here's an example article on how to get this done.
Using PowerShell when working with Azure has a number of other benefits in what you can do and can control as well. It's a good choice to spend time learning.
In the source database I created SPs to select the data from the tables.
In the target database I created table types (which would be available in programmability) for the tables with the same structure as in the source.
I used Azure function to move the data into table type from source.
In the target database I created SPs to insert data into the tables from their respective table types.
After ensuring the transfer of data, I would be deleting those records moved to the target in the source database and for this I created SPs.
I want to maintain the relationship between azure tables and want to insert /update data from on campus database using sql server management studio 2016. It does not give option of chcek/nocheck constraints, as it goes off on number of prefixes?? Please help.
if you want to update/insert azure database and maintain relation, only one way,you can use Transactional replication.
if you want to keep both the databases in sync,you will have rollout some custom solution like below ..
1.write an exe,which can read both tables and compare them .
2.Schedule this as per your frequency from SQlagent in onpremise