Convert SQL Create Query to Java POJO

Instantly generate Java Entity classes from your SQL CREATE TABLE scripts. Supports JPA annotations and variable naming conventions.

SQL Input (Create Table)

SQL

Add @Column

Field camelCase

@Column Value camelCase

Getters & Setters

Java POJO Output

Java

How to Convert SQL to Java?

Paste your SQL CREATE TABLE statement into the left editor.
Select options like Add @Column or Generate Getters & Setters from the center panel.
Click the Convert button.
The generated Java POJO class will appear in the right editor.
Click Copy or Download to use the code in your project.

Automate Your Data Layer

Boost Productivity

Stop manually typing Java classes for every table. Simply paste your SQL schema and get production-ready POJOs instantly.

JPA/Hibernate Ready

Optionally generates @Column annotations and mapped field names compatible with Hibernate and Spring Data JPA.

Example Transformation

Input SQL

create table users (

  user_id int,

  user_name varchar(50)

);

Output Java

public class Users {
  @Column(name="user_id")
  private int userId;

  @Column(name="user_name") 
  private String userName;
}

Key Features

Type Mapping

Smartly maps SQL types (INT, VARCHAR, TIMESTAMP) to Java types (int, String, LocalDateTime).

CamelCase Conversion

Automatically converts snake_case database columns to standard Java camelCase fields.

Boilerplate Free

Generates complete classes with Getters, Setters, and JPA annotations in one click.

Developer Deep Dive: SQL to Java Type Mapping

Mapping SQL types to Java primitives or wrapper classes is the core of this tool's logic. Our engine follows industry-standard JDBC mapping rules to ensure that your database numerical precision and string lengths are accurately represented in your backend code.

SQL Type	Generated Java Type	JPA Implication
INT, INTEGER	int / Integer	Supports Auto-increment
VARCHAR, TEXT, CHAR	String	Maps to @Column(length=...)
BIGINT	long / Long	Suitable for Snowflake/Twitter IDs
DECIMAL, NUMERIC	BigDecimal	High precision for currency
TIMESTAMP, DATETIME	LocalDateTime	Modern Java Time API (JSR-310)

When to Use This Tool

This tool is indispensable during the **Initial Data Modeling** phase of a Spring Boot, Quarkus, or Jakarta EE project. Instead of manually scaffolding DTOs (Data Transfer Objects) or Entities based on a SQL schema provided by a DBA, you can generate the entire model layer in seconds. This reduces "Fat Finger" errors and ensures that column names in your @Column annotations exactly match the database source of truth.

Frequently Asked Questions

We support standard SQL CREATE TABLE syntax common to MySQL, PostgreSQL, Oracle, and SQL Server.

Yes, this specific converter uses a secure backend service to parse complex SQL statements accurately. However, we do not store your code.

Currently, we generate standard Getters and Setters. Support for Lombok @Data and @NoArgsConstructor is planned for a future update.

If your SQL script includes `PRIMARY KEY` next to a column, our engine detects this and typically maps it to the standard @Id annotation in Java when JPA options are enabled.

Specifically, the tool converts `snake_case` (e.g., `first_name`) to `camelCase` (`firstName`) automatically. You can toggle this behavior in the center panel to keep the original database names if your project architecture doesn't use CamelCase.

For maximum accuracy, the SQL parsing logic runs on a secure backend node. However, your SQL schema is processed in volatile memory and is never written to disk or stored, maintaining the privacy of your table structures.

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