Skip Headers
Oracle® OLAP DML Reference
11g Release 1 (11.1)

Part Number B28126-01
Go to Documentation Home
Home
Go to Book List
Book List
Go to Table of Contents
Contents
Go to Index
Index
Go to Master Index
Master Index
Go to Feedback page
Contact Us

Go to previous page
Previous
Go to next page
Next
View PDF

TRIGGERMAXDEPTH

The TRIGGERMAXDEPTH option determines the maximum number of $NATRIGGER property expressions that Oracle OLAP can execute simultaneously.

Data Type

INTEGER

Syntax

TRIGGERMAXDEPTH = n

Arguments

n

An INTEGER expression that specifies the maximum number of $NATRIGGER property expressions that can execute simultaneously. The default value is 50.

Notes

About the $NATRIGGER Property

The TRIGGERMAXDEPTH option works in conjunction with the $NATRIGGER property of a variable.

Recursive Triggers

While a $NATRIGGER expression is executing, it cannot be invoked again by a formula, program, or other $NATRIGGER expression that it invokes unless the RECURSIVE option is set to YES. The TRIGGERMAXDEPTH option governs the depth of recursion of $NATRIGGER expressions and prevents infinite recursions or excessively deep recursions, which can cause Oracle OLAP to malfunction.

Examples

Example 6-109 Setting the Maximum Trigger Depth

This example sets the maximum trigger depth, exceeds it, then sets the depth to a higher value. Usually the TRIGGERMAXDEPTH value would be much higher than 2, which is used in this example. The default value is 50.

DEFINE d1 INTEGER DIMENSION
MAINTAIN d1 ADD 2
DEFINE v1 DECIMAL <d1>
PROPERTY '$NATRIGGER' 'v2 + 1'
DEFINE v2 DECIMAL <d1>
PROPERTY '$NATRIGGER' 'v3 + 1'
DEFINE v3 DECIMAL <d1>
PROPERTY '$NATRIGGER' 'v4 + 1'
DEFINE v4 DECIMAL <d1>
v4(d1 1) = 333.3
RECURSIVE = YES
TRIGGERMAXDEPTH = 2
SHOW v1
 

The preceding statements produce the following output.

ERROR: Depth of NA trigger calls exceeds allowable (maximum depth 2)

The following statements set the maximum trigger depth to a higher value and show the value of the variable.

TRIGGERMAXDEPTH = 3
SHOW v1

The preceding statements produce the following output.

336.3