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Zero Scale Decimal Types

Applies to ✅ Open Source Edition   ✅ Express Edition   ✅ Professional Edition   ✅ Enterprise Edition

A zero-scale decimal, such as DECIMAL(10) or NUMBER(10, 0) is really an integer type with a decimal precision rather than a binary / bitwise precision. Some databases (e.g. Oracle) do not support actual integer types at all, only decimal types. Historically, jOOQ generates the most appropriate integer wrapper type instead of BigDecimal or BigInteger:

If this is not a desireable default, it can be deactivated either explicitly on a per-column basis using forced types, or globally using the following flag:

XML (standalone and maven)

See the configuration XSD, standalone code generation, and maven code generation for more details.

new org.jooq.meta.jaxb.Configuration()
  .withGenerator(new Generator()
    .withDatabase(new Database()

See the configuration XSD andprogrammatic code generation for more details.

generationTool {
  generator {
    database {
      forceIntegerTypesOnZeroScaleDecimals = true

See the configuration XSD and gradle code generation for more details.


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