Preface
The Transformation Language
Constants
Operators
Variables
- Built-in Variables
  - SYSDATE
    - Example
- Local Variables
Dates
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  - Aggregate Functions
  - Aggregate Functions and Nulls
    - Filter Conditions
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- ABORT
- ABS
- ADD_TO_DATE
- AES_DECRYPT
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- ANY
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- CAST
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- ERROR
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- FIRST
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- LAG
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- RATE
- REG_EXTRACT
- REG_MATCH
- REG_REPLACE
- REPLACECHR
- REPLACESTR
- RESPEC
- REVERSE
- ROUND (Dates)
- ROUND (Numbers)
- RPAD
- RTRIM
- SET_DATE_PART
- SIGN
- SIN
- SINH
- SIZE
- SOUNDEX
- SQL_LIKE
- SQRT
- STDDEV
- STRUCT
- STRUCT_AS
- SUBSTR
- SUM
- SYSTIMESTAMP
- TAN
- TANH
- TIME_RANGE
- TO_BIGINT
- TO_CHAR (Dates)
- TO_CHAR (Numbers)
- TO_DATE
- TO_DECIMAL
- TO_DECIMAL38
- TO_FLOAT
- TO_INTEGER
- TO_TIMESTAMP_TZ
- TRUNC (Dates)
- TRUNC (Numbers)
- UPPER
- UUID4
- UUID_UNPARSE
- VARIANCE

Transformation Language Reference

10.5.1
- 10.5.6
- 10.5.4
- 10.5
- 10.4.0

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LAST

Returns the last row in the selected port. Optionally, you can apply a filter to limit the rows the

Data Integration Service

reads. You can nest only one other aggregate function within LAST.

Syntax

LAST( value [, filter_condition ] )

The following table describes the arguments for this command:

Argument	Required/ Optional	Description
value	Required	Any datatype except Binary. Passes the values for which you want to return the last row. You can enter any valid transformation expression.
filter_condition	Optional	Limits the rows in the search. The filter condition must be a numeric value or evaluate to TRUE, FALSE, or NULL. You can enter any valid transformation expression.

Return Value

Last row in a port.

NULL if all values passed to the function are NULL, or if no rows are selected (for example, the filter condition evaluates to FALSE or NULL for all rows).

Example

The following expression returns the last row in the ITEMS_NAME port with a price greater than $10.00:

LAST( ITEM_NAME, ITEM_PRICE > 10 )

ITEM_NAME	ITEM_PRICE
Flashlight	35.00
Navigation Compass	8.05
Regulator System	150.00
Flashlight	29.00
Depth/Pressure Gauge	88.00
Vest	31.00
RETURN VALUE: Vest

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Table of Contents

Transformation Language Reference

Transformation Language Reference

LAST

LAST

Syntax

Return Value

Example