Module org.jooq

Package org.jooq

Interface WithAsStep

public interface WithAsStep

This type is part of the jOOQ DSL to create Select, Insert, Update, Delete, Merge statements prefixed with a WITH clause and with CommonTableExpressions.

Example:

 DSL.with("table", "col1", "col2")
    .as(
        select(one(), two())
    )
    .select()
    .from("table")
 

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

Method Summary

Modifier and Type	Method	Description
@NotNull WithStep	as(Select<?> select)	Associate a subselect with a common table expression's table and column names.
@NotNull WithStep	asMaterialized(Select<?> select)	Associate a materialized subselect with a common table expression's table and column names.
@NotNull WithStep	asNotMaterialized(Select<?> select)	Associate a materialized subselect with a common table expression's table and column names.

Method Detail

as

@NotNull
@Support({AURORA_POSTGRES,COCKROACHDB,DB2,FIREBIRD,H2,HANA,HSQLDB,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA})
@NotNull WithStep as(Select<?> select)

Associate a subselect with a common table expression's table and column names.

asMaterialized

@NotNull
@Support({AURORA_POSTGRES,COCKROACHDB,DB2,FIREBIRD,H2,HANA,HSQLDB,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA})
@NotNull WithStep asMaterialized(Select<?> select)

Associate a materialized subselect with a common table expression's table and column names.

This adds the PostgreSQL 12 MATERIALIZED hint to the common table expression definition, or silently ignores it, if the hint is not supported.

asNotMaterialized

@NotNull
@Support({AURORA_POSTGRES,COCKROACHDB,DB2,FIREBIRD,H2,HANA,HSQLDB,MARIADB,MEMSQL,MYSQL_8_0,ORACLE,POSTGRES,SQLDATAWAREHOUSE,SQLITE,SQLSERVER,SYBASE,TERADATA,VERTICA})
@NotNull WithStep asNotMaterialized(Select<?> select)

Associate a materialized subselect with a common table expression's table and column names.

This adds the PostgreSQL 12 NOT MATERIALIZED hint to the common table expression definition, or silently ignores it, if the hint is not supported.