Convert JSON to SQL CREATE TABLE
When you have a JSON document representing a data structure and need to store it in a relational database, writing the CREATE TABLE statement from scratch is tedious and error-prone. This tool infers column names and SQL data types directly from a JSON object's keys and value types, generating a complete CREATE TABLE statement you can run immediately. Nested objects are flattened or noted as JSON columns depending on your target database. All conversion happens client-side — your JSON data never leaves your browser. This is ideal for quickly scaffolding database schemas during prototyping, migrating NoSQL data to SQL databases, and documenting existing API structures in relational form.
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create table statementREADY
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FAQ
- How are JSON types mapped to SQL types?
- Strings become VARCHAR, numbers become INTEGER or DECIMAL based on the value, booleans become BOOLEAN, and null fields become nullable columns. Nested objects are noted as JSON columns.
- Does it generate indexes or primary keys?
- The tool generates a basic CREATE TABLE with an auto-increment primary key. You can add indexes and constraints manually based on your query patterns.
- Which SQL dialects are supported?
- Output is standard SQL compatible with PostgreSQL, MySQL, and SQLite. Minor syntax differences are noted where they exist.