Preface
The Transformation Language
Constants
Operators
Variables
Dates
Functions
- Function Categories
  - Aggregate Functions
  - Aggregate Functions and Nulls
    - Filter Conditions
  - Binary Functions
  - Character Functions
  - Conversion Functions
  - Data Cleansing Functions
  - Date Functions
  - Encoding Functions
  - Financial Functions
  - Numeric Functions
  - Scientific Functions
  - Special Functions
  - String Functions
  - Test Functions
  - Variable Functions
  - Window Functions
- ABORT
- ABS
- ADD_TO_DATE
- AES_DECRYPT
- AES_ENCRYPT
- ASCII
- AVG
- BINARY_COMPARE
- BINARY_CONCAT
- BINARY_LENGTH
- BINARY_SECTION
- CEIL
- CHOOSE
- CHR
- CHRCODE
- COMPRESS
- CONCAT
- CONVERT_BASE
- COS
- COSH
- COUNT
- CRC32
- CUME
- DATE_COMPARE
- DATE_DIFF
- DEC_BASE64
- DEC_HEX
- DECODE
- DECOMPRESS
- EBCDIC_ISO88591
- ENC_BASE64
- ENC_HEX
- ERROR
- EXP
- FIRST
- FLOOR
- FV
- GET_DATE_PART
- GREATEST
- IIF
- IN
- INDEXOF
- INITCAP
- INSTR
- ISNULL
- IS_DATE
- IS_NUMBER
- IS_SPACES
- LAG
- LAST
- LAST_DAY
- LEAD
- LEAST
- LENGTH
- LN
- LOG
- LOOKUP
- LOWER
- LPAD
- LTRIM
- MAKE_DATE_TIME
- MAX (Dates)
- MAX (Numbers)
- MAX (String)
- MD5
- MEDIAN
- METAPHONE
- MIN (Dates)
- MIN (Numbers)
- MIN (String)
- MOD
- MOVINGAVG
- MOVINGSUM
- NPER
- PERCENTILE
- PMT
- POWER
- PV
- RAND
- RATE
- REG_EXTRACT
- REG_MATCH
- REG_REPLACE
- REPLACECHR
- REPLACESTR
- REVERSE
- ROUND (Dates)
- ROUND (Numbers)
- RPAD
- RTRIM
- SETCOUNTVARIABLE
- SET_DATE_PART
- SETMAXVARIABLE
- SETMINVARIABLE
- SETVARIABLE
- SHA256
- SIGN
- SIN
- SINH
- SOUNDEX
- SQRT
- STDDEV
- SUBSTR
- SUM
- SYSTIMESTAMP
- TAN
- TANH
- TIME_RANGE
- TO_BIGINT
- TO_CHAR (Dates)
- TO_CHAR (Numbers)
- TO_DATE
- TO_DECIMAL
- TO_FLOAT
- TO_INTEGER
- TRUNC (Dates)
- TRUNC (Numbers)
- UPPER
- VARIANCE
Creating Custom Functions
Custom Function API Reference

Transformation Language Reference

10.5.7
- 10.5.6
- 10.5.1
- 10.5
- 10.4.0

Back Next

GREATEST

Returns the greatest value from a list of input values. Use this function to return the greatest string, date, or number. By default, the match is case sensitive.

Syntax

GREATEST( value1, [value2, ..., valueN,] CaseFlag )

Arguments

The following table describes the arguments for this command:

Argument	Required/ Optional	Description
value	Required	Any data type except Binary. Data type must be compatible with other values. Value you want to compare against other values. You must enter at least one value argument. If the value is numeric, and other input values are numeric, all values use the highest precision possible. For example, if some values are Integer data type and others are Double data type, the PowerCenter Integration Service converts the values to Double.
CaseFlag	Optional	Must be an integer. Specify a value when the input value argument is a string value. Determines whether the arguments in this function are case sensitive. You can enter any valid transformation expression. When CaseFlag is a number other than 0, the function is case sensitive. When CaseFlag is 0, the function is not case sensitive. Default is case sensitive.

Return Value

value1
if it is the greatest of the input values, value2
if it is the greatest of the input values, and so on.

NULL if any of the arguments is null.

Example

The following expression returns the greatest quantity of items ordered:

GREATEST( QUANTITY1, QUANTITY2, QUANTITY3 )

QUANTITIY1	QUANTITY2	QUANTITY3	RETURN VALUE
150	756	27	756
			NULL
5000	97	17	5000
120	1724	965	1724

Rename Saved Search

Table of Contents

Transformation Language Reference

Transformation Language Reference

GREATEST

GREATEST

Syntax

Arguments

Return Value

Example