GroupByClause (Exasol SQL Statement Builder 4.5.3 API)

java.lang.Object
- com.exasol.sql.AbstractFragment
- - com.exasol.sql.dql.select.GroupByClause

All Implemented Interfaces:

SelectFragment, Fragment
```
public class GroupByClause
extends AbstractFragment
implements SelectFragment
```
This class represents the GROUP BY clause of an SQL statement.

Field Summary
- Fields inherited from class com.exasol.sql.AbstractFragment
  root

Constructor Summary

Constructors
Constructor Description

GroupByClause(SqlStatement rootStatement, ColumnReference... columnReferences)
Create a new instance of a GroupByClause.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`accept(SelectVisitor visitor)`	Accept a visitor (e.g.
`List<ColumnReference>`	`getColumnReferences()`	Get list of column references.
`BooleanExpression`	`getHavingBooleanExpression()`	Get the "having" boolean expression.
`Select`	`having(BooleanExpression booleanExpression)`	Add having statement to the SQL query.

Methods inherited from class com.exasol.sql.AbstractFragment
getRoot

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.exasol.sql.Fragment
getRoot

- Constructor Detail
  - GroupByClause
```
public GroupByClause(SqlStatement rootStatement,
                     ColumnReference... columnReferences)
```
    Create a new instance of a GroupByClause.
    
    Parameters:
    
    rootStatement - SQL statement this GROUP BY clause belongs to
    
    columnReferences - column references for the GROUP BY clause
- Method Detail
  - accept
```
public void accept(SelectVisitor visitor)
```
    Description copied from interface: SelectFragment
    
    Accept a visitor (e.g. a renderer or validator)
    
    Specified by:
    
    accept in interface SelectFragment
    
    Parameters:
    
    visitor - visitor to accept
  - getColumnReferences
```
public List<ColumnReference> getColumnReferences()
```
    Get list of column references.
    
    Returns:
    
    column name
  - having
```
public Select having(BooleanExpression booleanExpression)
```
    Add having statement to the SQL query.
    
    Parameters:
    
    booleanExpression - boolean expression
    
    Returns:
    
    instance ofSelect for fluent programming
  - getHavingBooleanExpression
```
public BooleanExpression getHavingBooleanExpression()
```
    Get the "having" boolean expression.
    
    Returns:
    
    "having" boolean expression