gudusoft.gsqlparser

Enum EOldNewQualifier

Object

Enum<EOldNewQualifier>

gudusoft.gsqlparser.EOldNewQualifier

All Implemented Interfaces:

Serializable, Comparable<EOldNewQualifier>

public enum EOldNewQualifier
extends Enum<EOldNewQualifier>

Oracle 26c: OLD/NEW qualifier for RETURNING clause expressions.

In Oracle 26c, the RETURNING clause can include OLD or NEW qualifiers to capture pre-update or post-update column values respectively.

Example:

 UPDATE employees SET salary = salary * 1.1
 RETURNING OLD salary, NEW salary, last_name
 BULK COLLECT INTO v_old_salaries, v_new_salaries, v_names;
 

Enum Constant Summary

Enum Constants

Enum Constant and Description
new_ NEW qualifier - returns post-update column values
none No qualifier specified - default behavior (post-update values for UPDATE, pre-delete values for DELETE)
old OLD qualifier - returns pre-update/pre-delete column values

Method Summary

Modifier and Type	Method and Description
static EOldNewQualifier	valueOf(String name) Returns the enum constant of this type with the specified name.
static EOldNewQualifier[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

none

public static final EOldNewQualifier none

No qualifier specified - default behavior (post-update values for UPDATE, pre-delete values for DELETE)

old

public static final EOldNewQualifier old

OLD qualifier - returns pre-update/pre-delete column values

new_

public static final EOldNewQualifier new_

NEW qualifier - returns post-update column values

Method Detail

values

public static EOldNewQualifier[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (EOldNewQualifier c : EOldNewQualifier.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static EOldNewQualifier valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null