org.jooq

Interface Select<R extends Record>

Type Parameters:

R - The record type being returned by this query

All Superinterfaces:

Attachable, FieldLike, Query, QueryPart, ResultQuery<R>, Serializable, TableLike<R>

All Known Subinterfaces:

SelectConditionStep<R>, SelectConnectByConditionStep<R>, SelectConnectByStep<R>, SelectFinalStep<R>, SelectForUpdateOfStep<R>, SelectForUpdateStep<R>, SelectForUpdateWaitStep<R>, SelectFromStep<R>, SelectGroupByStep<R>, SelectHavingConditionStep<R>, SelectHavingStep<R>, SelectJoinStep<R>, SelectLimitStep<R>, SelectOffsetStep<R>, SelectOnConditionStep<R>, SelectOptionalOnStep<R>, SelectOptionStep<R>, SelectOrderByStep<R>, SelectQuery<R>, SelectSeekLimitStep<R>, SelectSeekStep1<R,T1>, SelectSeekStep10<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10>, SelectSeekStep11<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11>, SelectSeekStep12<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12>, SelectSeekStep13<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13>, SelectSeekStep14<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14>, SelectSeekStep15<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15>, SelectSeekStep16<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16>, SelectSeekStep17<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17>, SelectSeekStep18<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18>, SelectSeekStep19<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19>, SelectSeekStep2<R,T1,T2>, SelectSeekStep20<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20>, SelectSeekStep21<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21>, SelectSeekStep22<R,T1,T2,T3,T4,T5,T6,T7,T8,T9,T10,T11,T12,T13,T14,T15,T16,T17,T18,T19,T20,T21,T22>, SelectSeekStep3<R,T1,T2,T3>, SelectSeekStep4<R,T1,T2,T3,T4>, SelectSeekStep5<R,T1,T2,T3,T4,T5>, SelectSeekStep6<R,T1,T2,T3,T4,T5,T6>, SelectSeekStep7<R,T1,T2,T3,T4,T5,T6,T7>, SelectSeekStep8<R,T1,T2,T3,T4,T5,T6,T7,T8>, SelectSeekStep9<R,T1,T2,T3,T4,T5,T6,T7,T8,T9>, SelectSeekStepN<R>, SelectSelectStep<R>, SelectStartWithStep<R>, SelectWhereStep<R>, SelectWindowStep<R>

public interface Select<R extends Record>
extends ResultQuery<R>, TableLike<R>, FieldLike

A Query that can provide a Result after execution

Author:

Lukas Eder

Method Summary

Methods

Modifier and Type	Method and Description
Select<R>	except(Select<? extends R> select) Combine with other selects
int	fetchCount() Execute this query in the context of its attached executor and return a COUNT(*) value.
List<Field<?>>	getSelect() All fields selected in this query
Select<R>	intersect(Select<? extends R> select) Combine with other selects
Select<R>	union(Select<? extends R> select) Combine with other selects
Select<R>	unionAll(Select<? extends R> select) Combine with other selects

Methods inherited from interface org.jooq.ResultQuery

bind, bind, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetch, fetchAny, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArray, fetchArrays, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchGroups, fetchInto, fetchInto, fetchInto, fetchLater, fetchLater, fetchLazy, fetchLazy, fetchMany, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMap, fetchMaps, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOne, fetchOneArray, fetchOneInto, fetchOneInto, fetchOneMap, fetchResultSet, fetchSize, getRecordType, getResult, intern, intern, intern, 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 org.jooq.TableLike

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

Methods inherited from interface org.jooq.FieldLike

asField, asField

Method Detail

union

@Support
Select<R> union(Select<? extends R> select)

Combine with other selects

unionAll

@Support
Select<R> unionAll(Select<? extends R> select)

Combine with other selects

except

@Support
Select<R> except(Select<? extends R> select)

Combine with other selects

intersect

@Support
Select<R> intersect(Select<? extends R> select)

Combine with other selects

getSelect

List<Field<?>> getSelect()

All fields selected in this query

fetchCount

int fetchCount()
               throws DataAccessException

Execute this query in the context of its attached executor and return a COUNT(*) value.

This wraps a pre-existing SELECT query in another one to calculate the COUNT(*) value, without modifying the original SELECT. An example:

 -- Original query:
 SELECT id, title FROM book WHERE title LIKE '%a%'

 -- Wrapped query:
 SELECT count(*) FROM (
   SELECT id, title FROM book WHERE title LIKE '%a%'
 )
 

This is particularly useful for those databases that do not support the COUNT(*) OVER() window function to calculate total results in paged queries.

Returns:

The COUNT(*) result

Throws:

DataAccessException - if something went wrong executing the query