Issues that may trigger you to make the switch from legacy burden to updated infrastructure
- Development and new technology implementation constraints
- Extra maintenance costs
- Legacy software constraints
- Low flexibility and scalability compared to modern languages
- Costly development of new apps and solutions
- Lack of expertise with legacy systems
The Ispirer Ecosystem opportunities to solve your issues
Ispirer helps you move business logic from the database layer to modern application code – fast, accurately, and with minimal manual work
This approach reduces database dependency, improves maintainability, and unlocks future scalability. Reduce technical debt, simplify architecture, and future-proof your stack with Ispirer’s automated tools.
Simplify transformation – move from legacy logic to agile, scalable application code!
Move business logic to application level with Ispirer
More than 2K users use this way to successfully migrate their database business logic
Source code
- PL/SQL
- SQL Server T-SQL
- DB2 SQL
- Sybase T-SQL
Ispirer tool
Parsing
Building the Code Tree (ASTAST (Abstract Syntax Tree) – a structure that represents the meaning and structure of the code)
Expert conversion rules
Transformation Rules Transformation Rules – a set of logic and patterns that modify the AST (expert rules based on experience and documentation)
Generation
Transformed Tree (Java-like structure)
Target code
Target Code GenerationCode Generation – automatic output of code from the processed tree (Java)
Check how the tool works
Save your time
7 reasons to migrate business logic from database to application level
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Enhanced agility
Applications can offer more flexibility and agility in managing and modifying business logic than databases. It's easier and faster to update and iterate on application code rather than altering database architecture, structure, stored procedures and data.
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Portability
Business logic embedded within applications is more portable across different database systems or platforms. It can be beneficial if the business needs to switch database vendors or deploy the application in various environments.
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Improved performance
Application servers are much easier to scale than database servers. Depending on the load users create, an application can be placed in a container and used as needed. It will be much easier and cheaper to achieve the system's desired performance using Ispirer solutions.
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RDBMS* dependency eliminated
Having business logic in the application layer unties your hands if you plan to change a database management system. This approach allows the simultaneous support of several databases.
*RDBMS — Relational Database Management System
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Accelerated time-to-market
Accelerate the deployment of new features and functionalities by transitioning domain logic to the application layer, thereby simplifying core services and enabling faster, more efficient innovation cycles.
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Cost savings
Customers who have already migrated their business logic to the application level benefit from reducing maintenance costs. Business logic in the application allows developers to focus on high-value tasks, fostering innovation and creativity.
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Leveraging investment
Leverage automated migration services and tools as a strategic component of a broader IT infrastructure modernization initiative, ensuring a smoother transition while maximizing the value and return on investment in existing legacy applications.
Manual migration vs Tool-enabled approach
Manual migration of 1M LoC takes years
VS
Migration of 1M LoC with Ispirer tool takes months
Migration efficiency counted
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24.000+
Working hours saved
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$600K+
Saved through routine automation
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10x boost
In productivity on a project
Comparison of supported constructs for automated migration Oracle PL/SQL, Microsoft SQL Server T-SQL and Sybase ASE T-SQL to Java
| Category | Oracle PL/SQL | SQL Server T‑SQL | Sybase ASE T‑SQL |
|---|---|---|---|
| Procedures & Functions | ✅ Procedures, functions, nested functions | ✅ Scalar, table-valued, inline/multi-statement | ✅ Scalar ❌ Table-returning functions |
| Packages | ✅ Packages with initialization | ❌ Not in T-SQL | ❌ Not in T-SQL |
| Dynamic SQL | ✅ EXECUTE IMMEDIATE | ✅ EXEC / sp_executesql | ✅ EXEC / sp_execsql |
| Cursors | ✅ Explicit / implicit, cursor loops | ✅ DECLARE CURSOR, FETCH ❌ Global cursor |
✅ DECLARE CURSOR, FETCH |
| User-Defined Types | ✅ UDT, collections | ✅ UDT (scalar & table types) | ✅ UDD (user-defined datatypes) |
| Error Handling | ✅ EXCEPTION, custom errors | ✅ TRY…CATCH, ERROR_MESSAGE, RAISERROR | ✅ @@error, RAISERROR, print |
| Bulk Operations | ✅ FORALL, BULK COLLECT | ✅ TVP batch | ❌ BCP, BULK INSERT |
| Built-in Functions | ✅ NVL, DECODE, SYS* packages | ✅ ISNULL, IIF, FORMAT | ✅ CHARINDEX, PATINDEX, REPLICATE, LTRIM/RTRIM |
| System Packages and Procedures | ✅ DBMS_OUTPUT, DBMS_SQL, UTL_* | ❌ Not supported yet | ❌ Not supported yet |
| Temporary Tables | ✅ Via GLOBAL TEMP TABLE | ✅ #temp, @tableVar | ✅ #temp |
| Parameters | ✅ IN, OUT, IN OUT, RETURN | ✅ IN, OUT, IN OUT, RETURN | ✅ INPUT, OUTPUT, RETURN |
Check out how Ispirer Toolkit automatically converts Oracle PL/SQL to Java
Explore your way to transform without constraints