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Schema Detect

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Supported formats: .csv,.xlsx,.xls,.xlsm,.xlsb,.tsv

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AboutSchema Detect

Infer data types and structure for SQL CREATE TABLE.Category: Analysis & Visualization
Generating a CREATE TABLE statement before loading a CSV into PostgreSQLDocumenting column types for a data warehouse onboardingCatching a column that looks numeric but actually contains mixed text
The Schema Detect tool is compatible with:.Run Schema Detect before importing a CSV into a database, then pass the same file through Column Validator or Data Health to catch values that will violate the inferred schema before you load them.
Schema Detect inspects every column in your CSV, samples the values, and infers the most likely SQL data type — INTEGER, VARCHAR, DATE, BOOLEAN, DECIMAL, and so on — then generates a ready-to-run CREATE TABLE statement. It saves the manual work of eyeballing a spreadsheet and guessing column widths and types before importing into a database. Particularly useful when handing a CSV export off to a database or data warehouse where the schema needs to be defined up front rather than inferred at import time.

Frequently Asked Questions:

What does it infer?

Data types and overall structure for each column, formatted as a ready-to-use SQL CREATE TABLE statement.

Is the output editable?

Yes, you can review and adjust the inferred schema before using it to set up a database table.


A time-saver for developers and DBAs setting up a new table from a CSV export without manually typing out column definitions.