Preface
The Transformation Language
Constants
Operators
Variables
- Built-in Variables
  - SYSDATE
    - Example
- Local Variables
Dates
Functions
- Function Categories
  - Aggregate Functions
  - Aggregate Functions and Nulls
    - Filter Conditions
  - Character Functions
  - Complex Functions
  - Conversion Functions
  - Data Cleansing Functions
  - Date Functions
  - Encoding Functions
  - Financial Functions
  - Numeric Functions
  - Scientific Functions
  - Special Functions
  - String Functions
  - Test Functions
  - Window Functions
- ABORT
- ABS
- ADD_TO_DATE
- AES_DECRYPT
- AES_ENCRYPT
- ANY
- ARRAY
- ASCII
- AVG
- CAST
- CEIL
- CHOOSE
- CHR
- CHRCODE
- COLLECT_LIST
- COLLECT_MAP
- COMPRESS
- CONCAT
- CONCAT_ARRAY
- CONVERT_BASE
- COS
- COSH
- COUNT
- CRC32
- CREATE_TIMESTAMP_TZ
- CUME
- DATE_COMPARE
- DATE_DIFF
- DEC_BASE64
- DECODE
- DECOMPRESS
- ENC_BASE64
- ERROR
- EXP
- EXTRACT_STRUCT
- FIRST
- FLOOR
- FV
- GET_DATE_PART
- GET_TIMEZONE
- GET_TIMESTAMP
- GREATEST
- IIF
- IN
- INDEXOF
- INITCAP
- INSTR
- ISNULL
- IS_DATE
- IS_NUMBER
- IS_SPACES
- LAG
- LAST
- LAST_DAY
- LEAD
- LEAST
- LENGTH
- LN
- LOG
- LOWER
- LPAD
- LTRIM
- MAKE_DATE_TIME
- MAP
- MAP_FROM_ARRAYS
- MAP_KEYS
- MAP_VALUES
- MAX (Dates)
- MAX (Numbers)
- MAX (String)
- MD5
- MEDIAN
- METAPHONE
- MIN (Dates)
- MIN (Numbers)
- MIN (String)
- MOD
- MOVINGAVG
- MOVINGSUM
- NPER
- PARSE_JSON
- PARSE_XML
- PERCENTILE
- PMT
- POWER
- PV
- RAND
- 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

Back Next

LAST_DAY

Returns the date of the last day of the month for each date in a port.

Syntax

LAST_DAY( date )

The following table describes the argument for this command:

Argument	Required/ Optional	Description
date	Required	Date/Time datatype. Passes the dates for which you want to return the last day of the month. You can enter any valid transformation expression that evaluates to a date.

Return Value

Date. The last day of the month for that date value you pass to this function.

NULL if a value in the selected port is NULL.

Null

If a value is NULL, LAST_DAY ignores the row. However, if all values passed from the port are NULL, LAST_DAY returns NULL.

Group By

LAST_DAY groups values based on group by ports you define in the transformation, returning one result for each group. If there is no group by port, LAST_DAY treats all rows as one group, returning one value.

Examples

The following expression returns the last day of the month for each date in the ORDER_DATE port:

LAST_DAY( ORDER_DATE )

ORDER_DATE	RETURN VALUE
Apr 1 1998 12:00:00AM	Apr 30 1998 12:00:00AM
Jan 6 1998 12:00:00AM	Jan 31 1998 12:00:00AM
Feb 2 1996 12:00:00AM	Feb 29 1996 12:00:00AM (Leap year)
NULL	NULL
Jul 31 1998 12:00:00AM	Jul 31 1998 12:00:00AM

You can nest TO_DATE to convert string values to a date. TO_DATE always includes time information. If you pass a string that does not have a time value, the date returned will include the time 00:00:00.

The following example returns the last day of the month for each order date in the same format as the string:

LAST_DAY( TO_DATE( ORDER_DATE, 'DD-MON-YY' ))

ORDER_DATE	RETURN VALUE
'18-NOV-98'	Nov 30 1998 00:00:00
'28-APR-98'	Apr 30 1998 00:00:00
NULL	NULL
'18-FEB-96'	Feb 29 1996 00:00:00 (Leap year)

Rename Saved Search

Table of Contents

Transformation Language Reference

Transformation Language Reference

LAST_DAY

LAST_DAY

Syntax

Return Value

Null

Group By

Examples