I have to copy table data from one Azure SQL Database to another Azure SQL Database which are under same Azure server.
Is there any way to do this using Azure data factory? Also, this needs to be scheduled as a daily feed.
Edit : How can we add more tables to the existing dataset ? I have created this for 3 tables, now i want to add two more tables to this, how ?
Did you have a look at Copy data to and from SQL Server by using Azure Data Factory?.
In Azure Data Factory, you can use the Copy activity to copy data
among data stores located on-premises and in the cloud. After you copy
the data, you can use other activities to further transform and
analyze it
You can have a look at the steps from here on how to configured a triggered pipeline.
One important thing to remember is that you'll have to define the data set (with or without schema) for all tables that require copy for any source-destination combination.
you can think of elastic queries(preview)-for cross database queries and elastic jobs (preview) for job scheduling.
Utilize Elastic query for bringing result from another database on the same server. Read more on Elastic Query. The advantage is it is coming as free with Azure SQL.
Elastic database query (preview) for Azure SQL Database allows you to
run T-SQL queries that span multiple databases using a single
connection point.
Schedule Elastic job(currently in preview) which can be used to schedule job in a Azure SQL database. Read more on Elastic jobs
Elastic Database Jobs (preview) are Job Scheduling services that
execute custom jobs on one or many Azure SQL Databases.
Related
We have an on-prem SQL Server DB (SQL Server 2017 Comp 140) that is about 1.2 TB. We need to do a repeatable migration of just the data to an on cloud SQL (Paas). The on-prem has procedures and functions that do cross DB queries which eliminates the Data Migration Assistant. Many of the tables that we need to migrate are system versioned tables (just to make this more fun). Ideally we would like to move the data into a different schema of a different DB so we can avoid the use of External tables (worried about performance).
Moving the data is just the first step as we also need to do an ETL job on the data to massage it into the new table structure.
We are looking at using ADF but it has trouble with versioned tables unless we turn them off first.
What are other options that we can look and try to be able to do this quickly and repeatedly? Do we need to change to IaaS or use a third party tool? Did we miss options in ADF to handle this?
If I summarize your requirements, you are not just migrating a database to cloud but a complete architecture of your SQL Server, which includes:
1.2 TB of data,
Continuous data migration afterwards,
Procedures and functions for cross DB queries,
Versioned tables
Point 1, 3, and 4 can be done easily by creating and exporting .bacpac file using SQL Server Management Studio (SSMS) from on premises to Azure Blob storage and then importing that file in Azure SQL Database. The .bacpac file that we create in SSMS allows us to include all version tables which we can import at destination database.
Follow this third-party tutorial by sqlshack to migrate data to Azure SQL Database.
The stored procedures can also be moved using SQL Scripts. Follow the below steps:
Go the server in Management Studio
Select the database, right click on it Go to Task.
Select Generate Scripts option under Task
Once its started select the desired stored procedures you want to copy
and create a file of them and then run script from that file to the Azure SQL DB which you can login in SSMS.
The repeatable migration of data is challenging part. You can try it with Change Data Capture (CDC) but I'm not sure that is what exactly your requirement. You can enable the CDC on database level using below command:
Use <databasename>;
EXEC sys.sp_cdc_enable_db;
Refer to know more - https://www.qlik.com/us/change-data-capture/cdc-change-data-capture#:~:text=Change%20data%20capture%20(CDC)%20refers,a%20downstream%20process%20or%20system.
I created an empty SQL database using Azure portal.
I also added some sample data to a data lake in Data Lake Storage Gen 1.
I downloaded SSMS, linked it to the server containing the SQL database, and added a new table using SSMS in order to have a target location to import the data into the SQL database.
Questions: 1. Will the new table I added in SSMS be recognized in Azure?; 2. How do I get the sample data from the data lake I created into the new table I created in the Azure SQL database?
An article suggested using Azure HDInsight to transfer the data, but it's not part of my free subscription and I don't know how much charges I will incur using it.
Will the new table I added in SSMS be recognized in Azure?
Yes, when we connect to the Azure SQL database with SSMS, all the operations in query editor will register/sync to the Azure SQL database. When the SQL statements executed/ran, we can refresh the SSMS and the new table will exist.
How do I get the sample data from the data lake I created into the new table I created in the Azure SQL database?
What's the sample data did you mean added to Data Lake Storage Gen 1, CSV files? If the file is not very large, I would suggest you download to you local computer can then using SSMS Import and Export Wizard to load the data to Azure SQL database. It may take some time, but it's free.
Or you may follow the tutorial Copy data between Data Lake Storage Gen1 and Azure SQL Database using Sqoop, I didn't find the price of Azure HDInsight when we create it. I'm not sure if it's free. I think you could try it.
Hope this helps.
I'm very new to Azure so please don't judge me too harshly.
So, in this project, I've got SQL Server on-premises 'production' database which is the 'master' data. I'm writing a small .NET application that is published on Azure and it is using tables and stored procedures on Azure database. My idea is to have the data in the tables on Azure database up-to-date with the on-premises 'production' database tables.
I've created Sync Group and Sync Agent and it looks like data is flowing accurately from the on-premises Sql Server tables to Azure database tables.
The only problem I have is that when some records on 'prodution' are deleted these records will not be deleted from the Azure tables.
I guess the questions are: What am I missing in synchronization and is it even the right approach to update the Azure database tables using the 'Sync to other databases' tool?
Thanks in advance!
Make sure you have elected the Azure SQL Database as the Hub in your sync group and the on-premise as a member database.
For the Conflict Resolution Policy of the Sync Group, make sure you have selected "Member wins".
According your problem description, since your Azure SQL Data Sync group has be created, we can get that:
Your on-premise SQL server DB is member database.
The Azure SQL database is Hub database.
The Sync Direction of your Sync must be "Member to Hub" or "Bi-directional Sync",
The only problem I have is that when some records on 'production' are deleted these records will not be deleted from the Azure tables.
For your question, I don't think Conflict Resolution Policy can help you solve it.
There isn't a good solution now, I only can give two suggestions for you:
Set Automatic Sync: Off. Sync the data from on-premises SQL
server to Azure manually. This can help your keep
the data in Azure SQL DB for a long time.
Create a new table in Azure SQL database, don't add the new table to
sync group. Copy the data from your synced table to new table. Using the new
table for test.
Hope this helps.
I want to enter data from mutiple T-SQL queries into my azure sql database, We want to enter data in such a way so that we have 8 columns in a single table in azure sql database, and for those 8 columns we have multiple T-SQL statements that 1 for each that will enter the data from the select statments into the azure sql database, how can this be achieved, for long term we want this to run as a job going forward.
If your multiple T-SQL queries run in one database, I suggest you can think about the Azure Data Factory.
Azure Data Factory can help migrate data from one table or multiple tables to Azure SQL database by T-SQL queries.
You also can trigger the pipeline runs on a schedule. You can create a scheduler trigger to schedule the pipeline to run periodically (hourly, daily, and so on).
For details about Data factory, please see Azure Data Factory Documentation.
Tutorials:
Incrementally load data from multiple tables in SQL Server to an Azure SQL database
Copy multiple tables in bulk by using Azure Data Factory.
And if your source data is in SQL Server instance, you can create a linked server to Azure SQL Database, this also can help you achieve that.
You can query and insert data to linked Azure SQL server by T-SQL statements.
About SQL Server linked server, please see: Create Linked Servers (SQL Server Database Engine)
Hope this helps.
Fist of all sorry for my bad English.
I am new for azure.We are planning to move some selected tables from our SQL database to azure SQL database because of it getting to much load.But existing stored procedure have joined with these tables in SQL server. So what is the best solution to get a result from both databases.
For example booking table right now in Azure database. But customer details, office details, courier details are in our existing SQL database.
Updated
Initially, we have only one database in sql server which contains all tables booking, customer details, office details, courier details etc. Due to heavy load, the client has decided to move some of the tables from sql server to Azure. So we have moved booking related tables into Azure. The issue is the database contains many stored procedures joined between all these tables. If I move some tables to Azure this won't work. I know there are methods to link multiple sql server to write stored procedures by adding those databases as 'Linked Servers' and access through [Server Name].[Database Name].[Table Name]. I think the same is possible between two Azure Sql databases.
My question is this cross-database querying is possible between two databases one is situated in SQL server and other is in Azure.
Thank you.
Azure supports cross database queries if both databases are in Azure ..In your case,it seems some of will be in OnPremises..
So the only option,which i can think of is to use is linked servers to azure..these queries can perform worse,depending on the data you want from them..
In General,you have to follow below steps to create Linked server to AZure..
1.Run odbcad32.exe to setup a system DSN using SQL Server Native Client.
2.Now create a linked server..
EXEC master.dbo.sp_addlinkedserver
#server = N’Can be any name′,
#srvproduct=N’Any’,
#provider=N’MSDASQL’,
#datasrc=N’name of DSN you created′
Now you can query azure from your local server like below
select * from [#datasrc name(dsn name)],db.schema.table
this blog explains step by step and goes into some details on what are the pitfalls
https://blogs.msdn.microsoft.com/sqlcat/2011/03/07/linked-servers-to-sql-azure/