Built-in functions

This section shows equivalents between functions in Oracle and in Snowflake.

Oracle	Snowflake	Notes
ABS	ABS
ACOS	ACOS
ADD_MONTHS	ADD_MONTHS
ANY_VALUE	ANY_VALUE	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
APPROX_COUNT	*to be defined
APPROX_COUNT_DISTINCT	APPROX_COUNT_DISTINCT
APPROX_COUNT_DISTINCT_AGG	*to be defined
APPROX_COUNT_DISTINCT_DETAIL	*to be defined
APPROX_MEDIAN	*to be defined
APPROX_PERCENTILE	APPROX_PERCENTILE
APPROX_PERCENTILE_AGG	*to be defined
APPROX_PERCENTILE_DETAIL	*to be defined
APPROX_RANK	*to be defined
APPROX_SUM	*to be defined
ASCII	ASCII
ASCIISTR	*to be defined
ASIN	ASIN
ATAN	ATAN
ATAN2	ATAN2
AVG	AVG
BFILENAME	*to be defined
BIN_TO_NUM	*to be defined
BITAND	BITAND
BIT_AND_AGG	BITAND_AGG	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
BITMAP_BIT_POSITION	BITMAP_BIT_POSITION
BITMAP_BUCKET_NUMBER	BITMAP_BUCKET_NUMBER
BITMAP_CONSTRUCT_AGG	BITMAP_CONSTRUCT_AGG	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
BITMAP_COUNT	BITMAP_BIT_COUNT	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
BITMAP_OR_AGG	BITMAP_OR_AGG	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
BIT_OR_AGG	BIT_OR_AGG	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
BIT_XOR_AGG	BIT_XOR_AGG	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
CARDINALITY	*to be defined
CAST	CAST TO_DATE TO_NUMBER TO_TIMESTAMP Not Supported	The function is converted to stub 'CAST_STUB' and outputs an error, when comes with one of the following not supported statement: 'DEFAULT ON CONVERSION ERROR' or 'MULTISET'. Also, it is converted to a stub and outputs an error if the data type is not supported. The function is converted to the 'TO_NUMBER' function when the expression to cast is of type number and outputs an error indicating that the explicit cast is not possible to be done. The function is converted to the 'TO_DATE' function when the expression to cast is of type date and outputs an error indicating that the explicit cast is not possible to be done. The function is converted to the 'TO_TIMESTAMP' function when the expression to cast is of type timestamp and outputs an error indicating that the explicit cast is not possible to be done.
CEIL	CEIL
CHARTOROWID	*to be defined
CHECKSUM	*to be defined
CHR	CHR	USING NCHAR_CS statement is not supported by the Snowflake function equivalent. The clause is removed.
CLUSTER_DETAILS	*to be defined
CLUSTER_DISTANCE	*to be defined
CLUSTER_ID	*to be defined
CLUSTER_PROBABILITY	*to be defined
CLUSTER_SET	*to be defined
COALESCE	COALESCE
COLLATION	COLLATION
COLLECT	*to be defined
COMPOSE	*to be defined
CON_DBID_TO_ID	*to be defined
CON_GUID_TO_ID	*to be defined
CON_NAME_TO_ID	*to be defined
CON_UID_TO_ID	*to be defined
CONCAT	CONCAT	Every expression parameter will be inside of an NVL(expr, ' ') function to avoid an error in case one of the expressions is null.
CONVERT	*to be defined
CORR	CORR	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
CORR_S	*to be defined
CORR_K	*to be defined
COS	COS
COSH	COSH
COUNT	COUNT
COVAR_POP	COVAR_POP	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
COVAR_SAMP	COVAR_SAMP	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
CUBE_TABLE	Not Supported	Converted to a stub 'CUBE_TABLE_STUB' and an error is added.
CUME_DIST	CUME_DIST	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
CURRENT_DATE	CURRENT_DATE
CURRENT_TIMESTAMP	CURRENT_TIMESTAMP
CV	*to be defined
DATAOBJ_TO_MAT_PARTITION	*to be defined
DATAOBJ_TO_PARTITION	*to be defined
DBTIMEZONE	*to be defined
DECODE	DECODE
DECOMPOSE	*to be defined
DENSE_RANK	DENSE_RANK	There are two kinds of syntax, aggregate syntax, and analytic syntax. The aggregate syntax is not supported and an error is added. The analytic syntax is supported but the 'SIBLINGS' keyword is removed from the 'order by' clause and a warning is added.
DEPTH	*to be defined
DEREF	*to be defined
DUMP	*to be defined
EMPTY_BLOB	*to be defined
EMPTY_CLOB	*to be defined
EXISTSNODE	*to be defined
EXP	EXP
EXTRACT (datetime)	EXTRACT (datetime) Not supported	Kept as an EXTRACT function but outputs a warning when the function has 'MINUTE' or 'TIMEZONE_MINUTE' as the first keyword parameter. Converted to a stub 'EXTRACT_STUB' and outputs an error when the first keyword parameter is 'TIMEZOME_REGION' or 'TIMEZONE_ABBR'
EXTRACT (XML)	Not Supported	Function related to XML is not supported. It is converted to a stub 'EXTRACT_STUB' and an error is added. Please check the following link about how to handle the loading for XML:
EXTRACTVALUE	Not Supported	Converted to a stub 'EXTRACTVALUE_STUB' and an error is added.
FEATURE_COMPARE	*to be defined
FEATURE_DETAILS	*to be defined
FEATURE_ID	*to be defined
FEATURE_SET	*to be defined
FEATURE_VALUE	*to be defined
FIRST	Not Supported	The statement used to indicate that only the first or last values of the aggregate function will be returned is not supported. Outputs an error.
FIRST_VALUE	FIRST_VALUE	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
FLOOR	FLOOR
FROM_TZ	*to be defined
GREATEST	GREATEST
GROUP_ID	*to be defined
GROUPING	GROUPING
GROUPING_ID	GROUPING_ID
HEXTORAW	*to be defined
INITCAP	INITCAP
INSTR	POSITION	The order of the 'string' parameter and the 'substring' parameter is inverted. Also, the 'occurrence' parameter is removed because it is not supported and a warning is added.
ITERATION_NUMBER	*to be defined
JSON_ARRAY	*to be defined
JSON_ARRAYAGG	*to be defined
JSON	*to be defined
JSON_MERGE_PATCH	*to be defined
JSON_OBJECT	*to be defined
JSON_OBJECTAGG	*to be defined
JSON_QUERY	*to be defined
JSON_SCALAR	*to be defined
JSON_SERIALIZE	*to be defined
JSON_TABLE	Not Supported	Outputs an error: JSON_TABLE IS NOT SUPPORTED.
JSON_TRANSFORM	*to be defined
JSON_VALUE	JSON_VALUE_UDF
KURTOSIS_POP	*to be defined
KURTOSIS_SAMP	*to be defined
LAG	LAG	When the value expression comes with the RESPECT | IGNORE NULLS statement, the statement is moved outside the parenthesis in order to match the Snowflake grammar.
LAST	Not Supported	The statement used to indicate that only the first or last values of the aggregate function will be returned is not supported. Outputs an error.
LAST_DAY	LAST_DAY
LAST_VALUE	LAST_VALUE	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
LEAD	LEAD	When the value expression comes with the RESPECT | IGNORE NULLS statement, the statement is moved outside the parenthesis in order to match the Snowflake grammar.
LEAST	LEAST
LENGTH	LENGTH
LISTAGG	LISTAGG	The overflow clause is removed from the function.
LN	LN
LNNVL	*to be defined
LOCALTIMESTAMP	LOCALTIMESTAMP
LOG	LOG
LOWER	LOWER
LPAD	LPAD
LTRIM	LTRIM
MAKE_REF	*to be defined
MAX	MAX
MEDIAN	MEDIAN
MIN	MIN
MOD	MOD
MONTHS_BETWEEN	MONTHS_BETWEEN_UDF	Converted to a user-defined function.
NANVL	*to be defined
NCHR	*to be defined
NEW_TIME	*to be defined
NEXT_DAY	NEXT_DAY
NLS_CHARSET_DESCL_LEN	*to be defined
NLS_CHARSET_ID	*to be defined
NLS_CHARSET_NAME	*to be defined
NLS_COLLATION_ID	*to be defined
NLS_COLLATION_NAME	*to be defined
NLS_INITCAP	*to be defined
NLS_LOWER	*to be defined
NLS_UPPER	*to be defined
NLSSORT	COLLATE Not Supported	When the function is outside of a 'where' or 'order by' clause, it is not supported and it is converted to stub 'NLSSORT_STUB' and an error is added. Otherwise, if the function is inside a 'where' or 'order by' clause, it is converted to the COLLATE function.
NTH_VALUE	NTH_VALUE
NTILE	NTILE
NULLIF	NULLIF
NUMTODSINTERVAL	Not Supported	While the function itself is not supported, some usages can be migrated manually. For example DATEADD can be used to manually migrate a sum between a Date/Timestamp and this function.
NUMTOYMINTERVAL	Not Supported	While the function itself is not supported, some usages can be migrated manually. For example DATEADD can be used to manually migrate a sum between a Date/Timestamp and this function.
NVL	NVL
NVL2	NVL2
ORA_DM_PARTITION_NAME	*to be defined
ORA_DST_AFFECTED	*to be defined
ORA_DST_CONVERTED	*to be defined
ORA_DST_ERROR	*to be defined
ORA_HASH	Not Supported	Converted to a stub 'ORA_HASH_STUB' and an error is added.
PATH	*to be defined
PERCENT_RANK	PERCENT_RANK	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
PERCENTILE_CONT	PERCENTILE_CONT
PERCENTILE_DISC	PERCENTILE_DISC
POWER	POWER
POWERMULTISET	*to be defined
POWERMULTISET_BY_CARDINALITY	*to be defined
PREDICTION	*to be defined
PREDICTION_BOUNDS	*to be defined
PREDICTION_COST	*to be defined
PREDICTION_DETAILS	*to be defined
PREDICTION_PROBABILITY	*to be defined
PREDICTION_SET	*to be defined
PRESENTNNV	*to be defined
PRESENTV	*to be defined
PREVIOUS	*to be defined
RANK	RANK	There are two kinds of syntax, aggregate syntax, and analytic syntax. The aggregate syntax is not supported and an error is added. The analytic syntax is supported but the 'SIBLINGS' keyword is removed from the 'order by' clause and a warning is added.
RATIO_TO_REPORT	RATIO_TO_REPORT
RAWTOHEX	*to be defined
RAWTONHEX	*to be defined
REF	*to be defined
REFTOHEX	*to be defined
REGEXP_COUNT	REGEXP_COUNT
REGEXP_INSTR	REGEXP_INSTR
REGEXP_REPLACE	REGEXP_REPLACE	In the replace_string parameter (the third one) is being added an extra '\' symbol to escape the other one. In the match_param parameter (last one) the equivalence works like this: 'c' -> 'c' specifies case-sensitive 'i' -> 'i' specifies case-insensitive 'n' -> 's' allows the period(.), which is the match-any-character character, to match the newline character 'm' -> 'm' treats the source string as multiple lines 'x' -> 'e' ignores whitespace characters
REGEXP_SUBSTR	REGEXP_SUBSTR	In the replace_string parameter (the second one) is being added an extra '\' symbol to escape the other one. In the match_param parameter the equivalence works like this: 'c' -> 'c' specifies case-sensitive 'i' -> 'i' specifies case-insensitive 'n' -> 's' allows the period(.), which is the match-any-character character, to match the newline character 'm' -> 'm' treats the source string as multiple lines 'x' -> 'e' ignores whitespace characters
REGR	REGR	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
REMAINDER	*to be defined
REPLACE	REPLACE
REVERSE	REVERSE
ROUND	ROUND
ROUND_TIES_TO_EVEN	*to be defined
ROW_NUMBER	ROW_NUMBER
RPAD	RPAD
ROWIDTOCHAR	*to be defined
ROWIDTONCHAR	*to be defined
RTRIM	RTRIM
SCN_TO_TIMESTAMP	*to be defined
SESSIONTIMEZONE	*to be defined
SET	*to be defined
SIGN	SIGN
SINH	SINH
SKEWNESS_POP	*to be defined
SKEWNESS_SAMP	*to be defined
SOUNDEX	SOUNDEX
SQRT	SQRT
STANDARD_HASH	*to be defined
STATS_BINOMIAL_TEST	*to be defined
STATS_CROSSTAB	*to be defined
STATS_F_TEST	*to be defined
STATS_KS_TEST	*to be defined
STATS_MODE	*to be defined
STATS_MW_TEST	*to be defined
STATS_ONE_WAY_ANOVA	*to be defined
STATS_T_TEST	*to be defined
STATS_WSR_TEST	*to be defined
STDDEV	STDDEV
STDDEV_POP	STDDEV_POP
STDDEV_SAMP	STDDEV_SAMP
SUBSTR	SUBSTR	All the types of SUBSTR (SUBSTRB, SUBSTRC, SUBSTR2, SUBSTR4) are being converted to SUBSTR
SUM	SUM
SYS_CONNECT_BY_PATH	*to be defined
SYS_CONTEXT	CURRENT_USER CURRENT_SCHEMA CURRENT_DATABASE IS_ROLE_IN_SESSION CURRENT_CLIENT CURRENT_SESSION Not supported	Depending on the parameters of the function SYS_CONTEXT, it is converted to one of the specified functions. 'CURRENT_SCHEMA' converted to CURRENT_SCHEMA() 'CURRENT_USER' converted to CURRENT_USER() 'DB_NAME' converted to CURRENT_DATABASE() 'ISDBA' converted to IS_ROLE_IN_SESSION('DBA') 'SERVICE_NAME' converted to CURRENT_CLIENT() 'SESSIONID' converted to CURRENT_SESSION() 'GUEST' converted to IS_ROLE_IN_SESSION('GUEST') 'SESSION_USER' converted to CURRENT_USER() 'AUTHENTICATED_IDENTITY' converted to CURENT_USER() When a parameter is not supported it is converted to stub 'SYS_CONTEXT_STUB'
SYS_DBURIGEN	*to be defined
SYS_EXTRACT_UTC	*to be defined
SYS_GUID	*to be defined
SYS_OP_ZONE_ID	*to be defined
SYS_TYPEID	*to be defined
SYS_XMLAGG	*to be defined
SYS_XMLGEN	*to be defined
TAN	TAN
TANH	TANH
TIMESTAMP_TO_SCN	*to be defined
TO_APPROX_COUNT_DISTINCT	*to be defined
TO_APPROX_PERCENTILE	*to be defined
TO_BINARY_DOUBLE	*to be defined
TO_BINARY_FLOAT	*to be defined
TO_BLOB (bfile)	*to be defined
TO_BLOB (raw)	*to be defined
TO_CHAR (character)	TO_CHAR
TO_CHAR (datetime)	TO_CHAR(datetime) Conditional Expression(CASE) Not Supported	Depending on the format parameter, the function is converted to conditional expression (CASE WHEN) or a user-defined function or kept as TO_CHAR(datetime). Sometimes the function will be between another function to get an equivalent result. When the function is not supported it is converted to stub 'TO_CHAR_STUB'. Go to To_Char(datetime) to get more information about this function.
TO_CHAR (number)	TO_CHAR (number)	If the numeric parameter is of type double or float the function is commented out and an error is added. When comes a format not supported, the format parameter is removed from the function and an error is added. Not supported formats: C L PR RN TM U V. If the function has the nlsparam parameter, it is removed from the function and an error is added.
TO_CLOB ( bfile | blob )	TO_VARCHAR	Outputs a warning to indicate the bfile/blob parameters are considered binary. Also outputs an error when the function has more than one parameter.
TO_CLOB (character)	TO_VARCHAR	Outputs a warning to indicate the bfile/blob parameters are considered binary. Also outputs an error when the function has more than one parameter.
TO_DATE	TO_DATE	When comes a format not supported, the function is commented out and an error is added. Not supported formats: FXFMDD-MON-YYYY J DDD MONTH RM DD-MON-RR DD-MON-RRRR SSSSS YYYY YYY Y
TO_DSINTERVAL	*to be defined
TO_LOB	*to be defined
TO_MULTI_BYTE	*to be defined
TO_NCHAR	*to be defined
TO_NCHAR (datetime)	*to be defined
TO_NCLOB	*to be defined
TO_NUMBER	TO_NUMBER Not Supported	The 'DEFAULT integer ON CONVERSION ERROR' statement is removed and outputs an error, Converted to a stub TO_NUMBER_STUB and an error is added when the 'format' parameter is not supported and also when the function has the 'nlsparam' parameter.
TO_SINGLE_BYTE	*to be defined
TO_TIMESTAMP	TO_DATE	When comes a format not supported, the function is commented out and an error is added. Not supported formats: FXFMDD-MON-YYYY J DDD MONTH RM DD-MON-RR DD-MON-RRRR SSSSS YYYY YYY Y
TO_TIMESTAMP_TZ	TO_DATE	When comes a format not supported, the function is commented out and an error is added. Not supported formats: FXFMDD-MON-YYYY J DDD MONTH RM DD-MON-RR DD-MON-RRRR SSSSS YYYY YYY Y
TO_UTC_TIMESTAMP_TZ	*to be defined
TO_YMINTERVAL	*to be defined
TRANSLATE	TRANSLATE
TRANSLATE_USING	TRANSLATE_USING
TREAT	*to be defined
TRIM	TRIM LTRIM RTRIM	Depending on the first parameter it will be converted to: LEADING keyword -> LTRIM TRAILING keyword -> RTRIM BOTH keyword -> TRIM None of these keywords -> keep as TRIM function. Also, the order of the 'trimsource' parameter and the 'trimcharacter' parameter is inverted, and the FROM keyword is removed from the function.
TRUNC (date)	TRUNC(date)	'DAY' expression is added as a second parameter of the function.
TRUNC (number)	TRUNC(number)
TZ_OFFSET	*to be defined
UID	*to be defined
UNISTR	TO_VARCHAR(expr)	In the expr parameter is being added the 'u' letter after every '\' symbol.
UPPER	UPPER
USER	*to be defined
USERNV	*to be defined
VALIDATE_CONVERSION	*to be defined
VALUE	Not Supported	Converted to a stub 'VALUE_STUB' and an error is added.
VAR_POP	VAR_POP
VAR_SAMP	VAR_SAMP
VARIANCE	VARIANCE	A warning is being added to indicate the Snowflake counterpart may not be functionally equivalent.
VSIZE	*to be defined
WIDTH_BUCKET	WIDTH_BUCKET
XMLAGG	*to be defined
XMLCAST	*to be defined
XMLCDATA	*to be defined
XMLCOLATVAL	*to be defined
XMLCOMMENT	*to be defined
XMLCONCAT	*to be defined
XMLDIFF	*to be defined
XMLELEMENT	*to be defined
XMLEXISTS	*to be defined
XMLFOREST	*to be defined
XMLISVALID	*to be defined
XMLPARSE	*to be defined
XMLPATCH	*to be defined
XMLPI	*to be defined
XMLQUERY	Not Supported
XMLSEQUENCE	Not Supported	Converted to a stub 'XMLSEQUENCE_STUB' and an error is added.
XMLSERIALIZE	*to be defined
XMLTABLE	Not Supported	Outputs an error: XMLTABLE IS NOT SUPPORTED.
XMLTRANSFORM	*to be defined

Functions Details.

To_Char(datetime)

According to the format parameter, the function will be converted to:

Format	Conversion
AD or BC A.D. or B.C.	The function will be converted to a conditional expression (CASE) where the format is added as a result of the 'when' condition. For Example: from: To_Char(DATE '1998-12-25', 'AD') to: CASE WHEN YEAR(DATE '1998-12-25') < 0 THEN'BC'
CC or SCC	The function will be converted to a conditional expression where the original function body is added as a when condition but it will be between a MOD function, after that the original function is added as a then result but contained by a SUBSTR function. For example: from: To_Char(DATE '1998-12-25','CC') to: CASE WHEN MOD(YEAR(DATE '1998-12-25'), 100) = 0 THEN SUBSTR(TO_CHAR(DATE '1998-12-25', 'YYYY'), 1, 2)
D	The function will be converted to the snowflake function equivalent but the function body will be between the DAYOFWEEK datetime part. For Example: from: To_Char(DATE '1998-12-25','D') to: TO_CHAR(DAYOFWEEK(DATE '1998-12-25') + 1)
DAY	The function will be converted to a user-defined function inside of an UPPER function. For Example: from: To_Char(DATE '1998-12-25','DAY') to: UPPER(SNOWCONVERT.PUBLIC.FULL_DAY_NAME_UDF(DATE '1998-12-25'))
DDD	The function will be converted to the snowflake function equivalent but the function body will be between the DAYOFYEAR datetime part. For Example: from: To_Char(DATE '1998-12-25','DDD') to: TO_CHAR(DAYOFYEAR(DATE '1998-12-25'))
DD-MON-RR	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'DD-MON-YY'. For Example: from: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','DD-MON-RR') to: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','DD-MON-YY')
DL	The function will be converted to a user-defined function plus the 'OR' operator plus snowflake equivalent keeping the function body but changing the format to: ', MMM DD, YYYY For example: from: To_Char(DATE '1998-12-25','DL') to: SNOWCONVERT.PUBLIC.FULL_DAY_NAME_UDF(DATE '1998-12-25') || TO_CHAR(DATE '1998-12-25',', MMMM DD, YYYY')
DS	The function will be converted to a combination of the snowflake function equivalent inside of the LTRIM function and the snowflake function equivalent. All the parts combined with the 'OR' operator. For Example: from: To_Char(DATE '1998-12-25','DS') to: LTRIM(TO_CHAR(DATE '1998-12-25', 'MM'), '0') || '/' || LTRIM(TO_CHAR(DATE '1998-12-25', 'DD'), '0') || '/' || TO_CHAR(DATE '1998-12-25', 'YYYY')
DY	The function will be converted to the snowflake function equivalent inside of the UPPER function. For example: from: To_Char(DATE '1998-12-25','DY') to: UPPER(TO_CHAR(DATE '1998-12-25', 'DY'))
I	The function will be converted to into the snowflake function equivalent inside of the SUBSTR function. For Example: from: To_Char(DATE '1998-12-25','I') to: SUBSTR(TO_CHAR(DATE '1998-12-25', 'YYYY'), 4, 1)
IW	The function will be converted to the snowflake function equivalent but the function body will be between the WEEKISO datetime part. For Example: from:To_Char(DATE '1998-12-25','IW') to: TO_CHAR(WEEKISO(DATE '1998-12-25'))
IY	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'YY'. For example: from:To_Char(DATE '1998-12-25', 'IY') to: TO_CHAR(DATE '1998-12-25', 'YY')
IYY	The function will be converted to the snowflake function equivalent inside of the SUBSTR function and change the format to: 'YYYY'. For Example: from: To_Char(DATE '1998-12-25','IYY') to: SUBSTR(TO_CHAR(DATE '1998-12-25', 'YYYY'), 2, 3)
IYYY	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'YYYY'. For example: from:To_Char(DATE '1998-12-25', 'IYYY') to: TO_CHAR(DATE '1998-12-25', 'YYYY')
J	The function will be converted to a conditional expression with 'B.C.' as a 'then' result and 'A.D.' as an else result. For example: from: To_Char(DATE '1998-12-25','J') to: DATE_TO_JULIANDAYS_UDF(DATE '1998-12-25')
MI	The function will be converted to the snowflake equivalent. If the function argument is SYSDATE it will be changed to CURRENT_TIMESTAMP, otherwise, if it is of type date, the function will return null. For Example: from: To_Char(SYSDATE,'MI'); to: To_Char(CURRENT_TIMESTAMP,'MI')
MON	The function will be converted to the snowflake function equivalent inside of the UPPER function. For Example: from: To_Char(DATE '1998-12-25','MON') to: UPPER(TO_CHAR(DATE '1998-12-25', 'MON'))
MONTH	The function will be converted to the snowflake function equivalent inside of the UPPER function and change the format to: 'MMMM'. For Example: from: To_Char(DATE '1998-12-25','MONTH') to: UPPER(TO_CHAR(DATE '1998-12-25', 'MMMM'))
Q	The function will be converted to the snowflake function equivalent inside of the QUARTER function. For Example: from: To_Char(DATE '1998-12-25','Q') to: TO_CHAR(QUARTER(DATE '1998-12-25'))
RM	The function will be converted to a user-defined function. For Example: from: To_Char(DATE '1998-12-25','RM') to: SNOWCONVERT.PUBLIC.ROMAN_MONTH_UDF(DATE '1998-12-25')
RR	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'YY'. For Example: from: To_Char(DATE '1998-12-25','RR') to: TO_CHAR(DATE '1998-12-25', 'YY')
RR-MON-DD	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'YY-MON-DD'. For Example: from: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','RR-MON-DD') to: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','YY-MON-DD')
RRRR	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'YYYY'. For Example: from: To_Char(DATE '1998-12-25','RRRR') to: TO_CHAR(DATE '1998-12-25', 'YYYY')
SS	The function will be converted to a combination of a conditional expression and the snowflake function equivalent. All the parts combined with the 'OR' operator. For Example: from: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','SS') to: CASE WHEN SECOND(TIMESTAMP '1998-12-25 09:26:50.12') = 0 THEN '00' WHEN SECOND(TIMESTAMP '1998-12-25 09:26:50.12') < 10 THEN '0' || TO_CHAR(SECOND(TIMESTAMP '1998-12-25 09:26:50.12')) ELSE TO_CHAR(SECOND(TIMESTAMP '1998-12-25 09:26:50.12')) END
SSSS	The function will be converted to the snowflake function equivalent but the function body will be a concatenation of SECOND, MINUTE, and HOUR datetime parts. For Example: from: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','SSSS') to: TO_CHAR(SECOND(TIMESTAMP '1998-12-25 09:26:50.12') + MINUTE(TIMESTAMP '1998-12-25 09:26:50.12') * 60 + HOUR(TIMESTAMP '1998-12-25 09:26:50.12') * 3600)
TS	The function will be converted to the snowflake function equivalent keeping the function body but changing the format to: 'HH:MI:SS PM'. For Example: from: To_Char(TIMESTAMP '1998-12-25 09:26:50.12','TS') to: TO_CHAR(TIMESTAMP '1998-12-25 09:26:50.12', 'HH:MI:SS PM')
W	The function will be converted to the TRUNC function with the DAYOFMONTH datetime part. For Example: from: To_Char(DATE '1998-12-25','W') to: TRUNC(DAYOFMONTH(DATE '1998-12-25') / 7 + 1)
WW	The function will be converted to the TRUNC function with the DAYOFYEAR datetime part. For Example: from: To_Char(DATE '1998-12-25','WW') to: TRUNC(DAYOFYEAR(DATE '1998-12-25') / 7 + 1)
Y YYY	The function will be converted to the snowflake function equivalent inside of the SUBSTR function and change the format to: 'YYYY'. For Example: from: To_Char(DATE '1998-12-25','Y') to: SUBSTR(TO_CHAR(DATE '1998-12-25', 'YYYY'), 4, 1)
Y,YYY	The function will be converted to a combination of the snowflake function equivalent inside of the SUBSTR function and a comma symbol. All the parts combined with the 'OR' operator. For Example: from: To_Char(DATE '1998-12-25','Y,YYY') to: SUBSTR(TO_CHAR(YEAR(DATE '1998-12-25')), 1, 1) || ',' || SUBSTR(TO_CHAR(YEAR(DATE '1998-12-25')), 2, 3)
YEAR SYEAR	The function will be converted to a user-defined function inside of an UPPER function. For Example: from: To_Char(DATE '1998-12-25','YEAR') to: UPPER(SNOWCONVERT.PUBLIC.YEAR_NAME_UDF(DATE '1998-12-25'))