Migrate Microsoft SQL Server to PostgreSQL

Make the most of automated migration to focus on your business core

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Many companies have used our tools and provided excellent feedback on their performance

4.8
4.8

6 undeniable facts to choose MSSQL to PostgreSQL conversion with Ispirer

Fact 1/6

Reduced costs

Migrating to a more efficient PostgreSQL database can lower operational costs by reducing hardware and software maintenance requirements, optimizing resource utilization, and lowering licensing fees.
Fact 2/6

Modernization and innovation

Migrating to PostgreSQL can enable the adoption of new technologies and features, unlocking new business opportunities and driving innovation.
Fact 3/6

Added AI precision

An AI-driven migration toolkit can automate complex tasks, reduce errors, optimize workflows, and accelerate the process, ensuring smoother transitions while minimizing costly system downtime.
Fact 4/6

Enhanced security

Newer PostgreSQL databases often incorporate advanced security features like encryption, access controls, and threat detection mechanisms, providing better protection against data breaches and cyberattacks.
Fact 5/6

Legacy system transformation

Migrating SQL Server legacy databases to modern systems can upgrade your database, making it easier to maintain, update, and extend in the long run.
Fact 6/6

No need for documentation

We perform the migration to PostgreSQL using the source code. There is no need for detailed documentation to begin the migration as there is in development.

Migration opportunities with Ispirer

Ispirer Ecosystem automates your migration routine to enable quick and smart transformation of any database. Double the migration speed with our comprehensive solutions.

With Ispirer Toolkit only
- Free InsightWays tool to analyze your SQL Server database and estimate migration complexity
- Assistance in Ispirer Toolkit configuration
- Automated migration of the entire database schema, tables, SQL objects, business logic, and data
- Timely customization of the Ispirer Toolkit to maximize automation rate
- Expert support
Get started — it’s free
Trial is free. No payment
With Ispirer Toolkit as a part of migration service
- Detailed analysis of your SQL Server database and tailored migration roadmap
- Migration of data and database schema, including SQL objects, business logic, and tables
- Team of database conversion experts and a dedicated Project Manager
- Regular updates on the project status
- Post-migration refinement and testing
Get started — it’s free
Trial is free. No payment

Ispirer Ecosystem for automated migration

Ispirer Toolkit is a solution for automated heterogeneous database migration. Using it, you can transfer tables and data, stored procedures, functions, packages, views, and triggers. This solution is based on an intelligent proprietary algorithm that analyzes data types, relationships between objects, reserved words, and code structures that do not have equivalents in a target technology.

AI-powered SQLWays

Schema migration

Migrate Smarter. Evolve Faster

Over 400+ ways to migrate

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PostgreSQL
Oracle
AlloyDB
SQL Server
Informix
MySQL
DB2
MariaDB
Sybase ASE
PostgreSQL
Oracle
AlloyDB
SQL Server
Informix
MySQL
DB2
MariaDB
Sybase ASE

MSSQL
COBOL
Azure
Progress 4GL
SAP
PowerBulder
.NET
Delphi
MSSQL
COBOL
Azure
Progress 4GL
SAP
PowerBulder
.NET
Delphi

Migration details overview

Ispirer Toolkit automates

Ispirer Toolkit automates the entire migration of database objects from SQL Server to PostgreSQL

Both conversion with connection to the source database, as well as conversion of files containing Transact-SQL scripts are possible. The first option is most recommended, as the tool will get all the required information about object dependences directly from the database. Ispirer Toolkit can migrate the following objects: tables and data, views, functions, procedures, triggers, sequences and user-defined types. As a result, each separate database object is converted to its equivalent in PostgreSQL.

If you have your own applications, the Embedded SQL and Database APIs can be converted using either Ispirer Toolkit or Ispirer Service. They will be able to work with your new PostgreSQL database.
Table and Data Conversion

Ispirer Toolkit converts tables with all related objects

Indexes, referential integrity constraints, and data are migrated to the target PostgreSQL database. All SQL Server native data types are converted to the PostgreSQL equivalents.

If necessary, the user can change the default settings of data type mapping.
Procedure, Function and Trigger Conversion

SQL objects

Transact-SQL user procedures and functions are converted to stored procedures and functions written in PostgreSQL syntax, depending on the version of the target database.

Ispirer Toolkit automatically migrates SQL Server triggers to the trigger function, and the trigger itself to the PostgreSQL database

SQL Server trigger logic is moved to the trigger function as well. The tool then generates a trigger that calls this trigger function.
Built-in Functions and Procedures Conversion

Transact-SQL built-in functions and procedures are converted to their equivalents in PostgreSQL

If there is none, the tool will try to convert the functions to PL/PgSQL expressions. They will emulate the same behavior or generate a user-defined function that will work the same way as in the SQL Server database.
Working with User-Defined Types

Ispirer Toolkit supports conversion of user-defined type to its equivalent in the PostgreSQL database

According to the type and its usage, it may be converted to a user, native type, or to a PostgreSQL table. Then a set of user-defined functions is generated. This allows to work with values in such tables.
Alias Conversion

Ispirer SQL Server to PostgreSQL converter replaces synonyms to the original object names

Moreover, if the SQL Server database has synonyms only for tables, Ispirer Toolkit can convert them to views by setting the appropriate option.

Move your migration project to the next level. Migrate logic from database to application

Ispirer has a solution to unlock the full potential of your database. Our team helps you to move business logic to an application layer seamlessly to advance the database performance.

Source database

SQL Server
PostgreSQL

Read-only access

ODBC

Files with business logic SQL code

SQL Server
PostgreSQL

How Migration work

Seamless integration, limitless possibilities!

Application target Code

Java
JDBC
.NET
Spring
Hibernate

Automated conversion of SQL objects to application code. Ispirer Ecosystem supports Oracle, SQL Server, Sybase, PostgreSQL, Java, C#, Python, etc.
In case of changing the RDBMS, embedded SQL will be automatically rewritten to adhere to the syntax of the new database.
Migration with or without connection to databases. Both options allow you to successfully migrate business logic from the database to the application layer. However, connecting to the database allows the migration tool to take into account additional data from the database and helps improve the conversion.

Migration with\without connection to databases.

/ If RDBMS changes, EmbeddedSQL will be automatically rewritten to adhere to the new database syntax
/ Ispirer Toolkit supports Oracle, SQL Server, Sybase, PostgreSQL, Java, C#, Python, etc.
/ Automated SQL objects conversion to application code
/ Migration with\without connection to databases.

Unlock agility: shift your database logic to the application layer!
Transform faster, scale smarter—see how moving from database to application layer drives real results. Let’s modernize it together.
Learn more
Explore our comprehensive migration solutions

Migration demo

Check out how Ispirer Toolkit migrates databases efficiently, minimizing the need for manual corrections

SQL Server to PostgreSQL migration service overview

Migration

DB schema conversion
Data migration testing
Data integrity testing
APP changes: API, ESQL, logic shift to APP layer

Assessment

Obtaining access
Project discussion
Making migration plan
Creating SOW

Start

More than 2K users use this way to
successfully convert their database

Manual review & corrections

Manual corrections
Internal testing

Functional testing

Creating snapshots with data
Testing APP and DB on snapshots
Fixing all logical issues

Performance testing

Performance testing
Converted code review
Code refactoring
Extra code optimization

Data migration

Prod data migration

Cutover

Switching DB and APP
Providing user access
System startup

Obtaining access
Project discussion
Making migration plan
Creating SOW
DB schema conversion
Data migration testing
Data integrity testing
APP changes: API, ESQL, logic shift to APP layer
Manual corrections
Internal testing
Creating snapshots with data
Testing APP and DB on snapshots
Fixing all logical issues
Performance testing
Converted code review
Code refactoring
Extra code optimization
Prod data migration
Switching DB and APP
Providing user access
System startup

They succeeded using Ispirer Toolkit

Achieving 95% automation in PostgreSQL database migration

Oracle, SQL Server → PostgreSQL

Target: PostgreSQL

Achieving 95% automation in PostgreSQL database migration case card

Project Scope

1 700 000 LoC

Project Duration

12 Months

Industry

Contingent Workforce Management

Sybase ASE to MySQL: 100% automated migration

Sybase ASE → MySQL

Target: MySQL

Sybase ASE to MySQL: 100% automated migration case card

Project Scope

300 000 LoC

Project Duration

12 Months

Industry

Financial Data Utility Provider

Helping HR Software Leader: DB2 OS/390 to SQL Server

DB2 OS/390 → SQL Server

Target: SQL Server

Helping HR Software Leader case card

Project Scope

400 000 LoC

Project Duration

3 Months

Industry

Software Developer and Provider

Enhancing Performance: Oracle to Java Migration Automation

Oracle → Java, PostgreSQL

Target: Java, PostgreSQL

Enhancing Performance case card

Project Scope

1 250 000 LoC

Project Duration

14 months

Industry

Software Developer and Provider

Consulting Firm Cuts Migration Costs by 65% with Ispirer

SQL Server → Java, PostgreSQL

Target: Java, PostgreSQL

Consulting Firm Cuts Migration case card

Project Scope

35 000 LoC

Project Duration

3 Months

Industry

Financial Consulting Firm

All success stories

Trust us with your migration project

High quality SQL code conversion

Expert system with 20.000+ conversion rules and 100.000+ automated tests
Flexibility

Nimble configuration with 300+ parameters and options for SQL objects and data multithread migration
Seasoned team

Ensuring high security and performance standards is what we do best, thanks to our impressive expertise in building reliable and scalable solutions
Technology expertise

With 25+ years of experience, our team has gained a wide pool of expertise in various programming languages, from the rarest to the most popular ones
We comply with ISO 27001

security management requirements with comprehensive policies and processes, advanced security technology, and skilled professionals
Comprehensive migration analysis

Intuitive and instructive reports for cost-effective post-migration polishing
Proprietary tools

We employ Ispirer proprietary tools, underscoring our dedication to delivering the utmost reliability and performance solutions. The toolkit is compiled daily and continually integrates dozens of new conversion rules, enhancing the automation capabilities
Free smart assessment

Ispirer's free InsightWays tool for migration scope and complexity evaluation

They chose Ispirer to revamp their database

Mixon, Magnit, CardinalHealth, and more have adopted SQLWays to boost their innovation life-cycle accelerate and manage their end-to-end innovation lifecycle

Oracle to PostgreSQL MS SQL Server to PostgreSQL

Migration project

50%

Migration time reduction

1.365K

Lines of SQL code

8 Tb

of data

Talent Management

"Ispirer Toolkit enabled a seamless migration of 8 TB of data and 1.36M lines of code from Oracle and SQL Server to PostgreSQL. The automation features reduced migration time by 50%, cutting costs and minimizing manual effort. The quality, precision, and support exceeded our expectations."

Read more Details: Migration to PostgreSQL →

SQL Server to PostgreSQL

Migration project

70%

Migration time reduction

650K+

Lines of SQL code

700+ tables

of data

Healthcare Solutions

"Ispirer helped us migrate 700+ tables and 650+ stored procedures from SQL Server to PostgreSQL, reducing development time by 60%-70%. The tool efficiently handled case-sensitive issues and frequent data changes. The excellent support made the process easy, fast, and effective."

Read more Details: Migration SQL Server to PostgreSQL →

COBOL to Java

Migration project

6-month

Migration time reduction

100K+

Lines of code

200+

COBOL programs

Education

"Ispirer Toolkit enabled us to efficiently convert 200 COBOL programs with over 100,000 lines of code to Java. The tool produced high-quality, maintainable code, allowing our team to focus on infrastructure rather than conversion. Ispirer’s support was exceptional, often resolving issues within one business day."

Read more Details: Application modernization COBOL to JAVA →

Oracle 19c to PostgreSQL

Migration project

65%

Migration time reduction

1.500K

Lines of code

8 TB

of data

Payments & Financial Services

"Ispirer Toolkit helped us migrate 1.5 million lines of complex Oracle code to PostgreSQL, overcoming unique challenges with expert support. Their team provided customized solutions for a smooth transition. This migration is a key step in our cloud strategy, and we highly recommend Ispirer's services."

Read more Details: Oracle to PostgreSQL migration →

Firebird to PostgreSQL

Migration project

55%

Migration time reduction

25K+

Lines of SQL code

> 150 tables

per database

Manufacturing & Fleet Management

"Ispirer's Toolkit enabled the efficient migration of 150 tables and 25,000 lines of code from Firebird to PostgreSQL. The tool saved us time and reduced risks, while the Ispirer team provided excellent support throughout. Highly recommended for similar database migration projects."

Read more Details: Firebird to PostgreSQL migration →

Informix to Oracle

Migration project

78%

Migration time reduction

200K+

Lines of code

12 TB

of data

Governmental

"Ispirer MnMTK was crucial to our successful database migration, converting 12 TB of data and 200,000 lines of SQL code. The tool outperformed other solutions, saving us countless hours. The support team was responsive and effective—money well spent."

Read more Details: Informix to Oracle database migration →

All testimonials

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