Functions List

8/3/2019 Functions List

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Informatica Functions List

Function Type S.No. Function Name Function Description Example

Character

Functions

1.1 ASCII(string) ASCII function returns the

numeric ASCII/Unicode value

of the first character of thestring passed to the function.

Input: ASCII('ABC')

Returns: 65

1.2 CHOOSE(index, string1 [,

string 2..])

CHOOSE function chooses a

string based on a given

position. If the value matches

the position, it is returned.

Input: CHOOSE(1,

'ABC', 'DEF', 'GHI')

Returns: ABC

1.3 CHR(numerical_value) It returns the ASCII/Unicodecharacter corresponding to a

numerical value.

INPUT: CHR(65)Returns: A

1.4 CHRCODE(string) It returns the ASCII/Unicode

value of the first character ofthe string passed to the

function.

Input: ASCII('ABC')

Returns: 65

1.5 CONCAT(string1,

string2)

It concatenates two strings. Input: Concat('Tata',

'Group')

Returns: TataGroup

1.6 INDEXOF(valueToSearch, string1, [string2...],

caseFlag)

Finds the index (postion) of avalue among a list of values

Input:INDEXOF(Item,

'Pen', 'Paper', 'Pencil')

Returns:

pen: 0Pen: 1

Paper: 2

Pencil:3

1.7 INITCAP(String) Capitalizes the first letter of each word and converts all

others to lower case.

Input:INITCAP('aBC')

Returns:

'Abc'1.8 INSTR(string,

searchValue [, start [,

occurrence]])

Returns the position of a

character in a string counting

from left to right.

Input:

INSTR('Tata

Consultancy


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Services', 'a', 1, 2)

Returns: 4

1.9 LENGTH(string) It returns the number of characters in the input string,

Input:LENGTH('Tata

Consultancy

Services')Returns: 24

1.10 LOWER(String) It converts all the characters of

the string to lower case.

Input:

LOWER('TATA')

Returns: 4

1.11 LPAD(first_string, length

[,secondstring])

It sets a set of blanks or

characters in the beginning ofa string.

Input:

LPAD('Abc', 6, 'x')Returns:

xxxAbc

1.12 LTRIM(String [,

trim_set])

Removes blanks or characters

from the beginning of a string.

Input

LTRIM('mAbc', 'm')Returns: Abc

LTRIM('mAbc', 'A')

Returns: mAbc

1.13 REPLACECHR(CaseFlag

, String, oldCharSet,NewChar)

Searches the string for a

specified character andreplaces all occurrences with a

new character specified

Input:

REPLCECHR(0,'ABC', '', NULL)

Returns: ABC

1.14 REPLACESTR(CaseFlag,

String, oldString,

NewString)

Searches the string for a list of

words and replaces them with

the new string.

REPLACESTR(0,

Title, 'rs.', 'iss', 's')

Returns:

Mrs. : Ms.

Miss: Ms.Mr.: Mr.

MRS.: Ms.

1.15 REVERSE(string) Reverses the input string Input:

REVERSE('tata')

Returns:

'atat'


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1.16 RPAD(first_string, length

[,secondstring])

It sets a set of blanks or

characters at the end of a

string.

RPAD('Abc', 6, 'x')

Returns:

Abcxxx

1.17 RTRIM(String [,

trim_set])

Removes blanks or characters

from the end of a string.

Input

RTRIM('Abcm', 'm')Returns: Abc

LTRIM('Abcde', 'de')

Returns: Abc

1.18 SUBSTR(string, start

[,length])

Returns a portion of a string.

Includes counting of blanks

Input:

SUBSTR('TataConsultancy

Services', 5, 11)

Returns

Consultancy

1.19 UPPER(string) Converts all the lower case

characters of the string toupper case

Input:

UPPER('tata')

Returns:

TATA

Conversion

Functions

2.1 TO_BIGINT(value

[,flag])

Converts a string or a

numerical value to a BIGINTvalue.

If flag is true or any number

other than zero, it truncates thedecimal value.

If flag is false or 0, it does not

truncate the decimal value.

Input:

TO_BIGINT('123,176,123,456.12,

TRUE)

Returns:

123,176,123,456

2.2 TO_CHAR(date

[,format])

TO_CHAR(numerical_val

ue)

It converts Date or Numeric

type data to character type.

Input:

TO_CHAR(Apr 12011 00:00:00,

'MMM DD YYYY')

Returns:

'Apr 1 2011 00:00:00'

INPUT:

TO_CHAR(12)


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Returns:

'12'

2.3 TO_DATE(string, format) It converts string type to a date

data type

Input:

TO_DATE('01/01/201

2', 'DD/MM/YYYY)

Returns:

JAN 01 201200:00:00

2.4 TO_DECIMAL(string,scale)

Converts string or numericaldata to decimal value.

Scale tells us the number of

digits after decimal value.

Input:TO_DECIMAL('121.

2343', 2)

Returns: 121.23

Input:

TO_DECIMAL('ABC', 2)

Returns: 0

2.5 TO_FLOAT(string) Converts string or numerical

data to a double precision

floating point value.

Input:

TO_FLOAT('2123.23

4')

Returns:

2123.234

2.6 TO_INTEGER(string[,flag])

Converts the string ornumerical value to integer

type.

Flag specifies whether to

truncate or round the decimalvalue. It truncates when the

flag is TRUE or any number

other than zero.

Input:TO_INTEGER(212.

3, 1)

Returns:212

Encoding

Functions

3.1 AES_DECRYPT(value,

key)

Returns encrypted data to

string format using AESalgorithm.

Value is the value to be

decrypted. Key is the same

Input:

AES_DECRYPT( SSN_ENCRYPT,

SUBSTR( SSN,1,3 ))

Returns:


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which is used to encrypt the

value.

07FB945926849D2B

1641E708C85E4390

= 832-17-1672

3.2 AES_ENCRYPT(value,

key)

Returns data in encrypted

format using AES algorithm

Input:

AES_ENCRYPT( SSN, SUBSTR( SSN,1,3

))

Returns:

832-17-1672 =

07FB945926849D2B

1641E708C85E4390

3.3 COMPRESS(value) Compresses data using zlibdata compressing algorithm.

3.4 CRC32 Returns a 32-bit Cyclic

Redundancy Check Value to

find data transmission errors.

3.5 DEC_BASE64(value) Decodes a base 64 encoded

value and returns a string withthe binary data representation

of the data.

3.6 DECOMPRESS(value) Decompresses data using zlib

compression algorithm.

3.7 ENC_BASE64(value) Encodes data by converting

binary data to string data usingMIME encoding.

3.8 MD5 Calculates the checksum of the

input value.MD5 is a one-way

cryptographic hash function

with a 128-bit hash value.Returns 32 bit character string.


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Numerical

Functions

4.1 ABS(numerical_value) Returns the absolute value of a

numerical value.

Input:

ABS(12-24)

Returns:12

4.2 CEIL(numerical_value) Returns the smallest integer

greater than or equal to the

value specified.Equal if the value specified is

integer

Input:

CEIL(3.1)

Returns:

4

4.3 CONVERT_BASE(value,

source_base, dest_base)

Converts a number from one

base to another base value.

Input:

CONVERT_BASE(7,

10, 2)

Returns:

00000111

4.4 CUME(numerical_value[,filter])

Returns a cumulative sum. Input:CUME( expense)

Returns:

100 100100 200

200 400

4.5 EXP(value) Calculates the exponent of e.

ie. value of e raised to powerthe specified value

Input:

EXP(2)

Returns:

7.3890561

4.6 FLOOR(value) Returns the largest integer

value less than or equal to thevalue specified. Equal if the

value specified is an integer.

Input:

FLOOR(12.1)

Returns:

12

4.7 LN(numerical_value) Returns the natural logarithm

of a number

Input:

LN(3)

Returns:

1.098612


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4.8 LOG(base, exponent) Returns the logarithm of a

number.

Input

LOG(10,10)

Returns:1

4.9 MOD(numerical_value,

divisor)

Returns the remainder of a

division calculation.

Input:

MOD(10, 3)

Returns:

1

4.10 MOVINGAVG(numeric_

value, rowset [,

filter_condition])

Returns the average (row-by-

row) of a specified set of rows.

Input:

MOVINGAVG( SAL

ES, 5 )

Returns:

100 NULL100 NULL

100 NULL

100 NULL200 120

200 140

4.11 MOVINGSUM(MOVIN

GSUM( SALES, 5 ))

Returns the sum ( row by row)

of a specified set of rows.

Input:

MOVINGSUM(SAL

ES, 5)

Returns:

100 NULL100 NULL

100 NULL

100 NULL

200 600200 700

4.12 POWER(base, exponent) Returns the raised to the valueof a number passed.

Input:POWER(10, 2)

Returns:100

4.13 RAND(seed) Returns a random number

between 0 and 1

Seed is numeric starting value

Input:

RAND(1)


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to generate the random numberReturns:

Any random vale

between 0 and 1.

4.14 ROUND(numeric_value

[,precision])

It rounds the numerical value

nearest to the decimal value.Precision tells to which

decimal place to round.

Input:

ROUND(12.1)

Returns:

12

4.15 SIGN(numeric_value) Returns whether a number is

positive, negative or 0.-1 for negative

0 for 0

1 for positive

Input:

SIGN(123)SIGN(-123)

Returns:1

-1

4.16 SQRT(numeric_value) Calculates the square root of a

non negative number

Input:

SQRT(100)

Returns:

10

4.17 TRUNC(numeric_value

[,precision])

Truncates numbers to a

specific digit.

Input:

TRUNC(9.9992, 3)

Returns:

9.999

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