// simple query
Account.executeQuery("select distinct a.number from Account a")
// using with list of parameters
Account.executeQuery("select distinct a.number from Account a " +
"where a.branch = ? and a.created > ?",
['London', lastMonth])
// using with a single parameter and pagination params
Account.executeQuery("select distinct a.number from Account a " +
"where a.branch = ?", ['London'],
[max: 10, offset: 5])
// using with Map of named parameters
Account.executeQuery("select distinct a.number from Account a " +
"where a.branch = :branch",
[branch: 'London'])
// using with Map of named parameters and pagination params
Account.executeQuery("select distinct a.number from Account a " +
"where a.branch = :branch",
[branch: 'London', max: 10, offset: 5])
// same as previous
Account.executeQuery("select distinct a.number from Account a " +
"where a.branch = :branch",
[branch: 'London'], [max: 10, offset: 5])
// tell underlying Hibernate Query object to not attach newly retrieved
// objects to the session, will only save with explicit `save`
Account.executeQuery("select distinct a.number from Account a",
null, [readOnly: true])
// time request out after 18 seconds
Account.executeQuery("select distinct a.number from Account a",
null, [timeout: 18])
// have Hibernate Query object return 30 rows at a time
Account.executeQuery("select distinct a.number from Account a",
null, [fetchSize: 30])
// modify the FlushMode of the Query (default is `FlushMode.AUTO`)
Account.executeQuery("select distinct a.number from Account a",
null, [flushMode: FlushMode.MANUAL])executeQuery
Purpose
Executes HQL queries
Examples
Description
The executeQuery method allows the execution of arbitrary HQL queries. HQL queries can return domain class instances, or `Array`s of specified data when the query selects individual fields or calculated values. The basic syntax is:
Book.executeQuery(String query)
Book.executeQuery(String query, List positionalParams)
Book.executeQuery(String query, List positionalParams, Map metaParams)
Book.executeQuery(String query, Map namedParams)
Book.executeQuery(String query, Map namedParams, Map metaParams)Parameters:
-
query- An HQL query -
positionalParams- AListof parameters for a positional parameterized query -
namedParams- AMapof named parameters for a named parameterized query -
metaParams- AMapof pagination parametersmaxor/andoffset, as well as Hibernate query parametersreadOnly,fetchSize,timeout, andflushMode