Cross-Database SQL Toolkit
Build, fix, and convert SQL with confidence.
Use SQL Lab for diagnostics, SQL Builder for guided query creation, and this converter for dialect translation across major database engines.
Interactive SQL Server-Style Converter
Paste query, choose source and target server, and get detailed reason cards for every transformation.
Converted SQL
Target Server Profile
Detailed Conversion Explanations
Run a conversion to see exactly why each SQL function or syntax piece changed for the selected server style.
High-Value Functions That Keep Users Engaged
Identifier Quote Conversion
Automatically converts identifier wrappers like backticks, double quotes, or square brackets to the target server format.
Why it matters: every SQL engine parses escaped table and column names differently, so this prevents parser errors after migration.
Pagination Dialect Rewrite
Rewrites LIMIT/OFFSET, TOP, and OFFSET FETCH patterns to the target server style.
Why it matters: row-limiting syntax is one of the most common breaking points when moving queries between engines.
Date/Time Function Mapping
Converts NOW, GETDATE, SYSTIMESTAMP, CURRENT_TIMESTAMP, and SQLite now syntax to the preferred target expression.
Why it matters: each server exposes current-time values with different function names and precision behavior.
Null Handling Function Mapping
Normalizes IFNULL, ISNULL, NVL, and COALESCE calls based on target server conventions.
Why it matters: null fallback functions are semantically similar but syntactically different across database families.
String Concatenation Translation
Switches between CONCAT, double-pipe operators, and plus operator style where appropriate.
Why it matters: expression concatenation compatibility is critical for reports, dashboards, and API output queries.
Auto Increment Keyword Shift
Adjusts common identity/auto number patterns like AUTO_INCREMENT, IDENTITY, SERIAL, and AUTOINCREMENT.
Why it matters: key-generation syntax drives table creation success and inserts in every production schema.
Server Style Matrix
Use this matrix to quickly compare SQL behavior between major database engines.
| Style Area | MySQL | PostgreSQL | SQL Server | Oracle | SQLite |
|---|---|---|---|---|---|
| Identifier quoting | backticks | double quotes | square brackets | double quotes | double quotes |
| Pagination | LIMIT/OFFSET | LIMIT/OFFSET | OFFSET FETCH or TOP | OFFSET FETCH | LIMIT/OFFSET |
| Current datetime | NOW() | CURRENT_TIMESTAMP | GETDATE() | SYSTIMESTAMP | CURRENT_TIMESTAMP |
| Null fallback | IFNULL | COALESCE | ISNULL | NVL | IFNULL |