Google BigQuery
AI BigQuery schema generator
Describe your domain in plain English. Ship a BigQuery warehouse — DDL with PARTITION BY and CLUSTER BY, plus a complete dbt project with sources, staging, marts, tests, and seeds.
CREATE TABLE analytics.dim_customer ( customer_sk STRING NOT NULL, customer_id STRING NOT NULL, name STRING, plan_id STRING, valid_from DATE NOT NULL, valid_to DATE ) PARTITION BY valid_from CLUSTER BY customer_id, plan_id OPTIONS (description = "SCD2 customer dimension"); CREATE TABLE analytics.fct_usage ( usage_id STRING NOT NULL, customer_sk STRING NOT NULL, plan_id STRING NOT NULL, event_ts TIMESTAMP NOT NULL, api_calls INT64 NOT NULL ) PARTITION BY DATE(event_ts) CLUSTER BY customer_sk, plan_id;
OffDataAI is purpose-built for BigQuery. Our generator emits BigQuery-native DDL with the right types (TIMESTAMP, DATE, NUMERIC(p,s), STRUCT, ARRAY), correct PARTITION BY (typically on event date), and CLUSTER BY on the columns you actually filter on. From the same conversation, you also get a complete dbt project ready for dbt build.
What OffDataAI generates
BigQuery-native DDL
PARTITION BY DATE(event_ts), CLUSTER BY, NUMERIC(p,s), STRUCT and ARRAY, integer-range partitioning — never generic ANSI SQL.
Kimball, Data Vault 2.0, or 3NF
Three paradigms supported. Pick the one your team uses; the generator emits matching partitioning and clustering.
Full dbt project
dbt_project.yml, sources, staging, marts (with partition_by + cluster_by), schema tests, and seeds. dbt build works on the first run.
Cost-aware design
Partitions and clustering are chosen to minimize scan cost on the queries you described — facts partition by event date, dims cluster by natural key.
Frequently asked questions
Can OffDataAI generate BigQuery DDL from plain English?
Does OffDataAI use BigQuery-specific features like PARTITION BY?
Does it support Kimball, Data Vault, and 3NF on BigQuery?
Does it generate a dbt project for BigQuery?
How is this different from asking ChatGPT for BigQuery DDL?
Related generators and modeling guides
- AI data modeling toolThe full pipeline — model, DDL, dbt, and seed data.
- Dimensional modelingStar schemas with partitioning and clustering.
- ERD generatorVisualize your BigQuery model as an ERD.
- dbt project generatorA complete dbt project for BigQuery.
- Snowflake schema generatorThe same flow, targeting Snowflake.
- Databricks schema generatorDelta-native DDL with liquid clustering.
Your data warehouse is one conversation away.
Describe your domain, or open one of 150+ production-grade templates. ERDs, DDL, and a complete dbt project — generated in under a minute.
