Before the Cloud Data Warehouse, most of the companies adopted the traditional Cloud Data Warehouse.
The traditional system of Data Warehouse permitted with various difficulties to gather data from a wide range of external or internal sources of an organization in order to support the analytical operations.
In general, the architecture of the traditional Data Warehouse is characterized by three tiers:
Anyway, to sustain this kind of system companies spent much to maintain hardware, server rooms and the cost of hiring a specific team to run it. Cloud Data Warehouse become the solution for these problems.
In this article I will give you an overview of the most used cloud data warehouses nowadays, which are Amazon Redshift and Azure Data Warehouse.
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SQL stands for Structured Query Language. SQL is a scripting language expected to store, control, and inquiry information put away in social databases. The main manifestation of SQL showed up in 1974, when a gathering in IBM built up the principal model of a social database. The primary business social database was discharged by Relational Software later turning out to be Oracle.
Models for SQL exist. In any case, the SQL that can be utilized on every last one of the major RDBMS today is in various flavors. This is because of two reasons:
1. The SQL order standard is genuinely intricate, and it isn’t handy to actualize the whole standard.
2. Every database seller needs an approach to separate its item from others.
Right now, contrasts are noted where fitting.
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In this article, you learn how to set up Azure Data Sync services. In addition, you will also learn how to create and set up a data sync group between Azure SQL database and on-premises SQL Server.
In this article, you will see:
Azure Data Sync —a synchronization service set up on an Azure SQL Database. This service synchronizes the data across multiple SQL databases. You can set up bi-directional data synchronization where data ingest and egest process happens between the SQL databases—It can be between Azure SQL database and on-premises and/or within the cloud Azure SQL database. At this moment, the only limitation is that it will not support Azure SQL Managed Instance.
#azure #sql azure #azure sql #azure data sync #azure sql #sql server
This article will walk you through creating a new SQL pool within an existing Azure SQL Server as well as catalog the same using the Azure Purview service.
Data is generated by transactional systems and typically stored in relational data repositories. This data is generally used by live applications and for operational reporting. As this data volume grows, this data is often required by other analytical repositories and data warehouses where it can be used for referential purposes and adding more context to other data from across the organization. Transactional systems (also known as Online Transaction Processing (OLTP) systems) usually need a relational database engine, while analytical systems (also known as Online Analytical Processing (OLAP) systems) usually need analytical data processing engines. On Azure cloud, it is usually known that for OLTP requirements, SQL Server or Azure SQL Database can be employed, and for analytical data processing needs, Azure Synapse and other similar services can be employed. SQL Pools in Azure Synapse host the data on an SQL Server environment that can process the data in a massively parallel processing model, and the address of this environment is generally the name of the Azure Synapse workspace environment. At times, when one has already an Azure SQL Server in production or in use, the need is to have these SQL Pools on an existing Azure SQL Server instance, so data in these SQL pools can be processed per the requirements on an OLAP system as well as the data can be co-located with data generated by OLTP systems. This can be done by creating SQL Pools within the Azure SQL Server instance itself. In this article, we will learn to create a new SQL Pool within an existing Azure SQL Server followed by cataloging the same using the Azure Purview service.
As we intend to create a new SQL Pool in an existing Azure SQL Server instance, we need to have an instance of Azure SQL in place. Navigate to Azure Portal, search for Azure SQL and create a new instance of it. We can create an instance with the most basic configuration for demonstration purposes. Once the instance is created, we can navigate to the dashboard page of the instance and it would look as shown below.
As we are going to catalog the data in the dedicated SQL Pool hosted on Azure SQL instance, we also need to create an instance of Azure Purview. We would be using the Azure Purview studio from the dashboard of this instance, tonregister this SQL Pool as the source and catalog the instance.
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In this article, we will show how to source data from Azure SQL Database to use in a Machine Learning workflow.
Azure offers a variety of data repositories for operational as well as analytical purposes. One of the most popular and highly adopted database services is Azure SQL Database, which is typically used to host transactional data in Online Transaction Processing (OLTP) systems. A typical data pipeline involves ingesting data into different types of data repositories. Data from different repositories may be optionally enriched or standardized using approaches like Master Data Management (MDM). Data is generally moved using Extract Transform Load (ETL) or Extract Load Transform (ELT) mechanisms. Once the data is in a proper state, it may be stored in a data warehouse in a structured format or in a data lake which is a mix of structured, semi-structured, and unstructured formats. SQL Database is one of those versatile data repositories that can store different types of data, which makes it an ideal candidate for being used as a data warehouse or data mart too. Once data is in operational and analytical repositories, this data is used for various types of analytics, prediction, forecasting, and other types of data intelligence.
Machine learning is one of the most popular means of extracting intelligence out of data. Azure offers Azure ML service which is one of the mainstream services for authoring machine learning workflows. Like other data processing systems, Azure Machine Learning service requires and supports sourcing data from different types of data repositories including Azure SQL Database. Sourcing data is usually the first step while authoring Azure Machine Learning workflows. Let’s go ahead and see how you can source data from SQL Database to use in an Azure Machine Learning workflow.
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Azure SQL Database is a Platform-as-a-Service (PaaS) solution that offers managed database service. Azure DB provides many features such as automatic database tuning, vulnerability assessment, automated patching, performance tuning, alerts. It provides a 99.995% availability SLA for the Zone redundant database in the business-critical service tier.
This article explores Transparent Data Encryption (TDE) using the customer-managed key in Azure SQL Database.
In an on-premise SQL Server instance, database administrators can enable Transparent Data Encryption (TDE) for securing the data and log files of a database. It is helpful to protect you from a malicious threat by encrypting data at rest. You get real-time encryption of the database, transaction log files and associated backup files without any configuration changes at the application end.
The high-level steps for implementing the TDE encryption are as below.
In the following image, we can visualize the TDE hierarchy. If you are new to TDE, you can refer to the following articles to get familiar with TDE.
If you migrate your on-premise databases to Azure SQL Database, TDE is enabled by default. You can connect to the Azure portal and verify the configuration. It uses an Azure service managed key. It is Azure responsibility to manage the key without any user intervention. Microsoft automatically uses its internal security policy for rotating these certificates. It protects the certificate root key using its internal secret store.
As shown below, my [labazuresql] database is encrypted using the Transparent data encryption.
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