org.jooq

Interface SelectGroupByStep<R extends Record>

All Superinterfaces:

Attachable, FieldLike, java.lang.Iterable<R>, Query, QueryPart, ResultQuery<R>, Select<R>, SelectFinalStep<R>, SelectForUpdateStep<R>, SelectHavingStep<R>, SelectLimitStep<R>, SelectOptionStep<R>, SelectOrderByStep<R>, SelectUnionStep<R>, SelectWindowStep<R>, java.io.Serializable, TableLike<R>

All Known Subinterfaces:

SelectConditionStep<R>, SelectConnectByConditionStep<R>, SelectConnectByStep<R>, SelectDistinctOnStep<R>, SelectFromStep<R>, SelectIntoStep<R>, SelectJoinStep<R>, SelectOnConditionStep<R>, SelectOptionalOnStep<R>, SelectSelectStep<R>, SelectStartWithStep<R>, SelectWhereStep<R>

public interface SelectGroupByStep<R extends Record>
extends SelectHavingStep<R>

This type is used for the Select's DSL API when selecting generic Record types.

Example:

 -- get all authors' first and last names, and the number
 -- of books they've written in German, if they have written
 -- more than five books in German in the last three years
 -- (from 2011), and sort those authors by last names
 -- limiting results to the second and third row

   SELECT T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME, COUNT(*)
     FROM T_AUTHOR
     JOIN T_BOOK ON T_AUTHOR.ID = T_BOOK.AUTHOR_ID
    WHERE T_BOOK.LANGUAGE = 'DE'
      AND T_BOOK.PUBLISHED > '2008-01-01'
 GROUP BY T_AUTHOR.FIRST_NAME, T_AUTHOR.LAST_NAME
   HAVING COUNT(*) > 5
 ORDER BY T_AUTHOR.LAST_NAME ASC NULLS FIRST
    LIMIT 2
   OFFSET 1
      FOR UPDATE
       OF FIRST_NAME, LAST_NAME
       NO WAIT
 

Its equivalent in jOOQ

 create.select(TAuthor.FIRST_NAME, TAuthor.LAST_NAME, create.count())
       .from(T_AUTHOR)
       .join(T_BOOK).on(TBook.AUTHOR_ID.equal(TAuthor.ID))
       .where(TBook.LANGUAGE.equal("DE"))
       .and(TBook.PUBLISHED.greaterThan(parseDate('2008-01-01')))
       .groupBy(TAuthor.FIRST_NAME, TAuthor.LAST_NAME)
       .having(create.count().greaterThan(5))
       .orderBy(TAuthor.LAST_NAME.asc().nullsFirst())
       .limit(2)
       .offset(1)
       .forUpdate()
       .of(TAuthor.FIRST_NAME, TAuthor.LAST_NAME)
       .noWait();
 

Refer to the manual for more details

Author:

Lukas Eder

Method Summary

Modifier and Type	Method and Description
SelectHavingStep<R>	groupBy(java.util.Collection<? extends GroupField> fields) Add a GROUP BY clause to the query Calling this with an empty argument list will result in an empty GROUP BY () clause being rendered.
SelectHavingStep<R>	groupBy(GroupField... fields) Add a GROUP BY clause to the query Calling this with an empty argument list will result in an empty GROUP BY () clause being rendered.

Methods inherited from interface org.jooq.SelectHavingStep

having, having, having, having, having, having

Methods inherited from interface org.jooq.SelectWindowStep

window, window

Methods inherited from interface org.jooq.SelectOrderByStep

orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderBy, orderSiblingsBy, orderSiblingsBy, orderSiblingsBy, orderSiblingsBy

Methods inherited from interface org.jooq.SelectLimitStep

limit, limit, limit, limit, limit, limit

Methods inherited from interface org.jooq.SelectForUpdateStep

forShare, forUpdate, withCheckOption, withReadOnly

Methods inherited from interface org.jooq.SelectOptionStep

option

Methods inherited from interface org.jooq.SelectUnionStep

except, intersect, union, unionAll

Methods inherited from interface org.jooq.SelectFinalStep

getQuery

Methods inherited from interface org.jooq.Select

fetchCount, getSelect

Methods inherited from interface org.jooq.ResultQuery

bind, bind, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAny, fetchAnyArray, fetchAnyInto, fetchAnyInto, fetchAnyMap, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArrays, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchInto, fetchInto, fetchInto, fetchLater, fetchLater, fetchLazy, fetchLazy, fetchMany, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMaps, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOneArray, fetchOneInto, fetchOneInto, fetchOneMap, fetchResultSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSet, fetchSize, getRecordType, getResult, intern, intern, intern, iterator, keepStatement, maxRows, queryTimeout, resultSetConcurrency, resultSetHoldability, resultSetType

Methods inherited from interface org.jooq.Query

cancel, close, execute, getBindValues, getParam, getParams, getSQL, getSQL, getSQL, isExecutable

Methods inherited from interface org.jooq.QueryPart

equals, hashCode, toString

Methods inherited from interface org.jooq.Attachable

attach, detach

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Methods inherited from interface org.jooq.TableLike

asTable, asTable, asTable, field, field, field, fields, fieldsRow

Methods inherited from interface org.jooq.FieldLike

asField, asField

Method Detail

groupBy

@Support
SelectHavingStep<R> groupBy(GroupField... fields)

Add a GROUP BY clause to the query

Calling this with an empty argument list will result in an empty GROUP BY () clause being rendered.

groupBy

@Support
SelectHavingStep<R> groupBy(java.util.Collection<? extends GroupField> fields)

Add a GROUP BY clause to the query

Calling this with an empty argument list will result in an empty GROUP BY () clause being rendered.