public interface AlterTableChangeStep<T>
The step in the Referencing
ALTER TABLE
DSL used to CHANGE
columns.
Referencing XYZ*Step
types directly from client code
It is usually not recommended to reference any XYZ*Step
types
directly from client code, or assign them to local variables. When writing
dynamic SQL, creating a statement's components dynamically, and passing them
to the DSL API statically is usually a better choice. See the manual's
section about dynamic SQL for details: https://www.jooq.org/doc/latest/manual/sql-building/dynamic-sql.
Drawbacks of referencing the XYZ*Step
types directly:
- They're operating on mutable implementations (as of jOOQ 3.x)
- They're less composable and not easy to get right when dynamic SQL gets complex
- They're less readable
- They might have binary incompatible changes between minor releases
- Author:
- Lukas Eder
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Method Summary
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Method Details
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set
@NotNull @CheckReturnValue @Support({ACCESS,ASE,AURORA_MYSQL,AURORA_POSTGRES,CLICKHOUSE,COCKROACHDB,CUBRID,DATABRICKS,DB2,DERBY,DUCKDB,EXASOL,FIREBIRD,H2,HANA,HSQLDB,INFORMIX,INGRES,MARIADB,MEMSQL,MYSQL,ORACLE,POSTGRES,SNOWFLAKE,SQLDATAWAREHOUSE,SQLSERVER,SYBASE,TRINO,YUGABYTEDB}) @NotNull AlterTableFinalStep set(DataType<?> type) Specify a new column data type.This adds or removes
NOT NULL
constraints on the column ifDataType.nullable()
is specified explicitly (not all databases support this).
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