More from our Blog
Preparing a healthcare application for HIPAA audit
HIPAA (Health Insurance Portability and Accountability Act) is one of the most important United States federal statutes which has a great impact on the development of medical software. This act stands for the safety of the protected health information (PHI) and defines security standards that each digitized medical business should follow. HIPAA sets numerous requirements […]
Kirill Karpenko, Roman Muzyka
Quick and easy automatic approach to database conversion
One of the largest educational organizations in the United States had been running their data handling system in the Oracle environment. They wanted to reduce maintenance costs due to the expensive Oracle licensing model, which includes an additional fee for the partitioning feature. The ABCloudz team provided a solution for migrating the customer’s database to […]
Andrey Khudyakov, Roman Muzyka
An overview of the remote migration from Oracle to SQL Server with SSIS
One of our clients, a large financial software company, wanted to migrate their billing solution from Oracle to SQL Server. They needed to initiate this project because the migration was required by one of their strategic partners. The customer decided to implement SQL Server Integration Services (SSIS) for this migration. Additionally, they needed to do […]
Andrey Khudyakov, Roman Muzyka
Conversion of Oracle schemas with hierarchical queries to SQL Server
One of our clients, prominent information technology company, needed to migrate its Oracle database to SQL Server so they called ABCloudz. They knew they wanted to automate the major part of the migration with SQL Server Migration Assistant (SSMA) but there were some challenges associated with this process. First, the company’s source database code contained […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Schema mapping in migration from Oracle to SQL Server
The migration of Oracle databases to Microsoft SQL Server brings many challenges. One of the most significant is associated with mapping Oracle schema to SQL Server. At the architecture level, the wrong approach will result in significant effort in the future. For example, you may even need to rewrite your app’s entire code from scratch. […]
Andrey Khudyakov, Roman Muzyka
Use caution when mapping Oracle data types for procedures and function parameters in SSMA
Mapping Oracle data types to SQL Server data types is often a problem during Oracle to Microsoft SQL Server database code conversions. A tried and trusted solution is to use an SQL Server database code conversion. Another reliable solution is to use SQL Server Migration Assistant. These solutions enable you to automate Oracle database conversions […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting materialized view with float type
A materialized view is an important property of Oracle. SQL Server recreates the same behavior as this materialized view in several ways. Unfortunately, SSMA may have issues with converting this object to SQL Server. It flags certain conditions as an error. In this blog post, we will overview the error O2SS0522. It goes about cases in […]
Andrey Khudyakov
Database migration with SSMA: Handling typical conversion errors
ABCloudz tech experts possess outstanding experience in migrating databases. For this purpose, we frequently use SQL Server Migration Assistant (SSMA). SSMA utilization may cause various types of errors, so we have created a blog post series which focused on typical database conversion errors. Each post in this series is dedicated to a separate problem statement and […]
Andrey Khudyakov, Roman Muzyka
Migrating from SAS to Big Data for a global retailer
When a global retailer in the beauty industry needed a new and cost-effective data processing solution, they knew the search would require a high level of expertise. That is why they decided to seek advice from ABCloudz. The company had a massive amount of data and utilized SAS software for data processing, both powerful but […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting interval literals
Oracle enables you to use specific interval literals for indicating a certain period of time. Unfortunately, there is no direct analog for such literals in SQL Server. As a result, when you apply SQL Server Migration Assistant (SSMA) for converting Oracle code with interval literals, you receive an error O2SS0086. The term ‘interval literals’ refers to a fixed data value, […]
Andrey Khudyakov, Roman Muzyka
Oracle to SQL Server migration with SSMA: Converting unsupported table expressions
With Oracle table functions, you can define a set of PL/SQL statements in such a way that, when queried, should behave just as a regular query to the table. The table function enables you to manipulate individual collection elements (user-defined object types) in your SQL database code. However, this may create a database migration challenge […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting foreign keys with different types of columns and referenced columns
In Oracle, you can create a foreign key for a table using columns with various data types. Unfortunately, SQL Server Migration Assistant (SSMA) fails to convert them to SQL Server correctly since it does not support such elements. As a result, when you try to convert the Oracle code including the foreign key with the columns of different data types, you will see the […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting unparsed SQL — Pivot Operator
The pivot clause is an integral part of the Oracle database. In particular, the pivot_clause of the SELECT statement allows you to write crosstabulation queries. Here you can rotate rows into columns and aggregate data in the rotation process. As an important data warehousing element, pivot rotates a table-value expression. To be more specific, it turns the […]
Andrey Khudyakov (DB architect), Roman Muzyka (writer)
Oracle to SQL Server migration with SSMA: Converting database links
In Oracle, database links are important features that enable you to access objects on another database. SQL Server has a direct alternative to this function. It provides a linked server or an OPENQUERY feature that allows you to emulate the database links’ functionality. Unfortunately, SQL Server Migration Assistant (SSMA) fails to convert these links automatically. […]
Andrey Khudyakov, Roman Muzyka
Cost-efficient Oracle database migration project with SQL Server Linked Servers
Preventing clients from overspending is one of our top priorities. Hence, we pay close attention to the cost of Oracle to SQL server migration in order to provide the most economical solutions while keeping the highest level of quality. Over years, we have served many clients and helped them to keep costs under control. For […]
Viacheslav Kim (DevOps lead), Roman Muzyka (writer)
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