DB2 LUW SQL Functions Compared To Netezza SQL Functions
SQL designed to use functions with DB2 LUW databases may need to be converted to work with Netezza
databases or DBA's may have to develop user defined functions (UDFs) with names that correspond to
DB2 LUW SQL function names in order to avoid having to convert the SQL.
Here is a list of DB2 LUW functions that do not exist in Netezza.
DB2 LUW SQL Functions
ARRAY_AGG
ARRAY_DELETE
ARRAY_FIRST
ARRAY_LAST
ARRAY_NEXT
ARRAY_PRIOR
ATANH
BASE_TABLE
BITAND
BITANDNOT
BITNOT
BITOR
BITXOR
BLOB
CARDINALITY
CEILING
CLOB
COALESCE
COLLATION_KEY_BIT
COMPARE_DECFLOAT
CONCAT
CORRELATION
COSH
COUNT_BIG
COVARIANCE
CURSOR_ROWCOUNT
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
DATAPARTITIONNUM
DAY
DAYNAME
DAYOFWEEK
DAYOFWEEK_ISO
DAYOFYEAR
DAYS
DBCLOB
DBPARTITIONNUM
DEC
DECFLOAT
DECFLOAT_FORMAT
DECODE
DECRYPT_BIN
DECRYPT_CHAR
DEREF
DIFFERENCE
DIGITS
DOUBLE
DOUBLE_PRECISION
EMPTY_BLOB
EMPTY_CLOB
EMPTY_DBCLOB
ENCRYPT
EVENT_MON_STATE
EXTRACT
GENERATE_UNIQUE
GETHINT
GRAPHIC
GREATEST
HASHEDVALUE
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
HOUR
IDENTIFY_VAL_LOCAL
JULIAN_DAY
LCASE
LEAST
LEFT
LOCATE
LOCATE_IN_STRING
LONG_VARCHAR
LONG_VARGRAPHIC
MAX_CARDINALITY
MICROSECOND
MIDNIGHT_SECONDS
MINUTE
MONTH
MONTHNAME
MULTIPLY_ALT
NORMALIZE_DECFLOAT
NULLIF
NVL
OCTET_LENGTH
OVERLAY
PARAMETER
POSTR
QUANTIZE QUARTER
RAISE_ERROR
RAND
REAL
REC2XML
REPLACE
RID
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
RID_BIT
RIGHT
ROUND_TIMESTAMP
SECLABEL
SECLABEL_BY_NAME
SECLABEL_TO_CHAR
SECOND
SINH
SOUNDEX
SPACE
STRIP
SUBSTRB
TABLE_NAME
TABLE_SCHEMA
TANH
TIMESTAMP_FORMAT
TIMESTAMP_ISO
TIMESTAMPDIFF
TO_CLOB
TOTALORDER
TRIM
TRIM_ARRAY
TRUNC_TIMESTAMP
TRUNCATE
TYPE_ID
TYPE_NAME
TYPE_SCHEMA
UCASE
UNNEST
VALUE VARCHAR_FORMAT
VARCHAR_FORMAT_BIT
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
VARGRAPHIC
WEEK WEEK_ISO
XMLAGG
XMLATTRIBUTES
XMLCOMMENT
XMLCONCAT
XMLDOCUMENT
XMLELEMENT
XMLFOREST
XMLGROUP
XMLNAMESPACES
XMLPARSE
XMLPI
XMLQUERY
XMLROW
XMLSERIALIZE
XMLTABLE
XMLTEXT
XMLVALIDATE
XMLXSROBJECTID
XSLTRANSFORM
YEAR
Here is a list of DB2 LUW functions that have different names in Netezza. It would be simple for a DBA to
create a user defined function (UDF) in Netezza by the same name as the DB2 LUW function and use the
Netezza function name in that passing it the same parameters so that SQL would not have to be
converted if it used these functions.
DB2 LUW SQL Functions _________________ Netezza SQL Functions
BIGINT _________________________________ INT8
CHARACTER_LENGTH ___________________ CHAR_LENGTH
DECIMAL _______________________________ NUMERIC
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
FLOAT _________________________________ FLOAT4
HEX ___________________________________ STRING_TO_HEX
HEX ____________________________________ TO_HEX
INT _____________________________________ INT4
INTEGER ________________________________ INT4
LOG10 __________________________________ DLOG10
POWER _________________________________ POW
SMALLINT _______________________________ INT2
VARCHAR_BIT_FORMAT___________________ VARBINARY
Here is a list of DB2 LUW functions that match Netezza functions by name.
DB2 LUW SQL Functions Netezza Functions
ABS ABS
ACOS ACOS
ADD_MONTHS ADD_MONTHS
ASCII ASCII
ASIN ASIN
ATAN ATAN
ATAN2 ATAN2
AVG AVG
CEIL CEIL
CHAR CHAR
CHR CHR
COS COS
COT COT
COUNT COUNT
DATE DATE
DEGREES DEGREES
EXP EXP
FLOAT FLOAT4
FLOOR FLOOR
GROUPING GROUPING
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
INITCAP INITCAP
INSTR INSTR
LAST_DAY LAST_DAY
LENGTH LENGTH
LN LN
LOWER LOWER
LPAD LPAD
LTRIM LTRIM
MAX MAX
MIN MIN
MOD MOD
MONTHS_BETWEEN MONTHS_BETWEEN
NEXT_DAY NEXT_DAY
POSITION POSITION
RADIANS RADIANS
REPEAT REPEAT
ROUND ROUND
RPAD RPAD
RTRIM RTRIM
SIGN SIGN
SIN SIN
SQRT SQRT
STDDEV STDDEV
SUBSTR SUBSTR
SUBSTRING SUBSTRING
SUM SUM
TAN TAN
TIME TIME
TIMESTAMP TIMESTAMP
TO_CHAR TO_CHAR
TO_DATE TO_DATE
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
TO_NUMBER TO_NUMBER
TO_TIMESTAMP TO_TIMESTAMP
TRANSLATE TRANSLATE
TRUNC TRUNC
UPPER UPPER
VARCHAR VARCHAR
VARIANCE VARIANCE
Here is a list of SQL functions that exist in Netezza but not in DB2 LUW. If SQL has to be converted to
use DB2 LUW that uses these functions then either the SQL will have to be changed or DBAs will have to
create user defined functions (UDFs) using these same names to avoid having to change SQL.
Netezza SQL Functions
AGE
BITMAP_AGGR
BOOL
BPCHAR
BTRIM
CHARCODES
COMBINE_LABEL CUME_DIST
CURRENT_CATALOG
CURRENT_DBID
CURRENT_PATH
CURRENT_SCHEMA
CURRENT_SCHEMAID
CURRENT_SID
CURRENT_TX_PATH
CURRENT_TX_SCHEMA
CURRENT_TX_SCHEMAID
CURRENT_USER
CURRENT_USERID
CURRENT_USEROID
DATE_PART
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
DATE_TRUNC
DB_ENCODING DBL_MP
DCEIL
DEFAULT_SCHEMA
DEFAULT_SCHEMAID
DENSE_RANK
DEXP
DFLOOR
DLE_DST
DLOG1
DPOW
DROUND
DSQRT
DTRUNC
FACTORIAL
FIRST_VALUE
FLOAT8
FPOW
GETDATABASEENCODING
IDENTIFIER_CASE
INT_MONTHS_BETWEEN
INT1
INTERVAL
ISFALSE
ISNOTFALSE
ISNOTTRUE
ISTRUE LAG
LAST_VALUE
LE_DST
LEAD
LOG
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
MAX_LABEL
NAME
NCHAR
NONNULLVALUE
NOW
NTILE
NULLVALUE
NVARCHAR
NVARCHARCAT
NYSIIS
OVERLAPS
PERCENTILE_CONT
PERCENTILE_DISC
PERCENTILE_RANK
PI
PRI_MP
QUOTE_IDENT
QUOTE_LITERAL
RANDOM
RANK
ROW_NUMBER
SCORE_MP
SEC_MP
SESSION_USER
SETSEED
ST_GEOMETRY
STDDEV_POP
STDDEV_SAMP
STRING_FROM_HEX
STRPOS
TEXT
Composed by Mark Mulligan
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DB2 LUW SQL Functions Compared To Netezza SQL Functions
TIMENOW
TIMEOFDAY
TIMESTAMP_CMP
TIMESTAMP_TO_LOCALTIME
TIMETZ
TIMEZONE
UNICHR
UNICODE
UNICODES
UTF8CODES
VARIANCE_POP
VARIANCE_SAMP
VERSION
WIDTH_BUCKET
Composed by Mark Mulligan
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