FreeAdhocUDF for InterBase and FireBird in deutschin englishen françaisen española português
homeprevious pagecontentnext pagelast page Seite empfehlen • advice website •Forum mailing-listwas ich vermisse • what I missed •eMail Kommentar • eMail commentprintsitemap
No longer necessary functions of FreeadhocUDF

Because further development some of the FreeAdhocUDF functions are now obsolete, because they are now in standard-vocabulary. (NOT from the UDFs like ib_udf or fbudf).
It is suggested to use this build-in functions because they are theoretically quicker and more save (every call of an UDF is a risk to crash the server).

Please remember, that sometimes the syntax of the functions is different to FreeAdhocUDF!

InterBase

From InterBase 6.0
F_YEAR  could be replaced with EXTRACT(YEAR FROM ...)
    SELECT F_YEAR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(YEAR FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_MONTH  could be replaced with EXTRACT(MONTH FROM ...)
    SELECT F_MONTH(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(MONTH FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_DAYOFMONTH  could be replaced with EXTRACT(DAY FROM ...)
    SELECT F_DAYOFMONTH(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(DAY FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
 F_HOUR  could be replaced with EXTRACT(HOUR FROM ...)
    SELECT F_HOUR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(HOUR FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
 F_MINUTE  could be replaced with EXTRACT(MINUTE FROM ...)
    SELECT F_MINUTE(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(MINUTE FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_SECOND  could be replaced with EXTRACT(SECOND FROM ...)
    SELECT F_SECOND(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(SECOND FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_DAYOFWEEK  could be replaced with EXTRACT(WEEKDAY FROM ...)
    SELECT F_DAYOFWEEK(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(WEEKDAY FROM CURRENT_TIMESTAMP) + 1 FROM RDB$DATABASE;
    Note:
    The FreeAdhocUDF function F_DAYOFWEEK starts (german) with sunday = 1 but EXTRACT(WEEKDAY ...) starts with
    Sunday = 0. You can "repair" ist like shown above.
F_DAYOFYEAR  could be replaced with EXTRACT(YEARDAY FROM ...)
    SELECT F_DAYOFYEAR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(YEARDAY FROM CURRENT_TIMESTAMP)  FROM RDB$DATABASE;
From InterBase 7.5
CASE could replace F_IF
COLLESCE and
NULLIF could replace sqls to NULL and F_STRINGLENGTH(..) = 0 or ... = 0
From InterBase 2007
Some BLOb-functions now obsolete, because InterBase2007 now handling BLObs like "normal"strings
F_BLOBASPCHAR converting not longer necessary, you can write sql directly with BLOBs
F_STRBLOB converting not longer necessary, you can write sql directly with BLOBs
F_BLOB2EXCEL use STR2EXCEL
F_BLOBCAT use || (as in strings)
F_BLOBCATSTR use || (as in strings)
F_BLOBLEFT use F_LEFT
F_BLOBMID use F_MID
F_BLOBRIGHT use F_RIGHT
F_BLOBREPLACESTRING use F_REPLACESTRING
F_BLOBSUBSTR use F_SUBSTR
F_BLOBWORDCOUNT use F_WORDCOUNT
F_BLOBCOMPARE obsolete, you can compare BLOBs like strings
 
FireBird

From FireBird 1.0
F_YEAR  could be replaced with EXTRACT(YEAR FROM ...)
    SELECT F_YEAR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(YEAR FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_MONTH  could be replaced with EXTRACT(MONTH FROM ...)
    SELECT F_MONTH(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(MONTH FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_DAYOFMONTH  could be replaced with EXTRACT(DAY FROM ...)
    SELECT F_DAYOFMONTH(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(DAY FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
 F_HOUR  could be replaced with EXTRACT(HOUR FROM ...)
    SELECT F_HOUR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(HOUR FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
 F_MINUTE  could be replaced with EXTRACT(MINUTE FROM ...)
    SELECT F_MINUTE(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(MINUTE FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_SECOND  could be replaced with EXTRACT(SECOND FROM ...)
    SELECT F_SECOND(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(SECOND FROM CURRENT_TIMESTAMP) FROM RDB$DATABASE;
F_DAYOFWEEK  could be replaced with EXTRACT(WEEKDAY FROM ...)
    SELECT F_DAYOFWEEK(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(WEEKDAY FROM CURRENT_TIMESTAMP) + 1 FROM RDB$DATABASE;
    Note:
    The FreeAdhocUDF function F_DAYOFWEEK starts (german) with sunday = 1 but EXTRACT(WEEKDAY ...) starts with
    Sunday = 0. You can "repair" ist like shown above.
F_DAYOFYEAR  could be replaced with EXTRACT(YEARDAY FROM ...)
    SELECT F_DAYOFYEAR(CURRENT_TIMESTAMP) FROM RDB$DATABASE;
    is identical with
    SELECT EXTRACT(YEARDAY FROM CURRENT_TIMESTAMP)  FROM RDB$DATABASE;
F_MID could be replaced with SUBSTRING
    SELECT 'cdefg' AS ISCORRECT, F_MID('abcdefghijk', 2 ,5) FROM RDB$DATABASE
     is identical with
     SELECT 'cdefg' AS ISCORRECT, SUBSTRING('abcdefghijk' FROM 3 FOR 5) FROM RDB$DATABASE 
From FireBird 2.0 
F_UPPER  could be replaced with UPPER - also (german) umlaut
    SELECT 'MÜLLER', F_UPPER('Müller') FROM RDB$DATABASE;
    is identical with
    SELECT 'MÜLLER', UPPER('Müller') FROM RDB$DATABASE;
F_LOWER  could be replaced with LOWER - also (german) umlaut
    SELECT 'müller', F_LOWER('MÜLLER') FROM RDB$DATABASE;
    is identical with
    SELECT 'müller', LOWER('MÜLLER') FROM RDB$DATABASE;
F_RTRIM  could be replaced with TRIM
    SELECT F_RTRIM('abcde   ') FROM RDB$DATABASE
    is identical with
    SELECT TRIM('abcde   ') FROM RDB$DATABASE   
F_IF could be replaced with IIF
    SELECT F_IF(1, '>', 0, -1, 1) FROM RDB$DATABASE;
    is identical with
    SELECT IIF(1 > 0, -1, 1) FROM RDB$DATABASE;
F_STRINGLENGTH  could be replaced with CHARACTER_LENGTH and
F_STRINGLENGTH  could be replaced with CHAR_LENGTH
    SELECT F_STRINGLENGTH('abcde') FROM RDB$DATABASE;
    is identical with
    SELECT CHARACTER_LENGTH('abcde') FROM RDB$DATABASE;
    is identical with
    SELECT CHAR_LENGTH('abcde') FROM RDB$DATABASE
From FireBird 2.1
Some BLOb-functions now obsolete, because FireBird 2.1 now handling BLObs like "normal"strings
F_BLOBASPCHAR converting not longer necessary, you can write sql directly with BLOBs
F_STRBLOB converting not longer necessary, you can write sql directly with BLOBs
F_BLOB2EXCEL use STR2EXCEL
F_BLOBCAT use || (as in strings)
F_BLOBCATSTR use || (as in strings)
F_BLOBLEFT use F_LEFT or the build-in-function LEFT
F_BLOBMID use F_MID
F_BLOBRIGHT use F_RIGHT or the build-in-function RIGHT
F_BLOBREPLACESTRING use F_REPLACESTRING
F_BLOBSUBSTR use F_SUBSTR
F_BLOBWORDCOUNT use F_WORDCOUNT
F_BLOBCOMPARE obsolete, you can compare BLOBs like strings
build-in-functions
F_ABS (F_DOUBLEABS, F_INTEGERABS) use the build-in-function ABS
F_ACOS use the build-in-function ACOS
F_CHR (F_CHARACTER) use the build-in-function ASCII_CHAR
F_ORD use the build-in-function ASCII_VAL
F_ASIN use the build-in-function ASIN
F_ATAN use the build-in-function ATAN
F_ATAN2 use the build-in-function ATAN2
F_BIN_AND use the build-in-function BIN_AND
F_BIN_OR use the build-in-function BIN_OR
remark: BIN_NOT was forgotten ...
F_BIN_SHL use the build-in-function BIN_SHL
F_BIN_SHR use the build-in-function BIN_SHR
F_BIN_XOR use the build-in-function BIN_XOR
F_CEILING use the build-in-function CEIL | CEILING
F_COS use the build-in-function COS
F_COSH use the build-in-function COSH
F_COT use the build-in-function COT
F_ADDYEAR, F_ADDMONTH, F_ADDWEEK, F_ADDDAY, F_ADDHOUR, F_ADDMINUTE, F_ADDSECOND
use the build-in-function DATEADD - attention: totaly different syntax
F_AGEINYEARS, F_AGEINMONTHS, F_AGEINWEEKS, F_AGEINDAYS, F_AGEINHOURS, F_AGEINMINUTES, F_AGEINSECONDS use the build-in-function DATEDIFF - bug, no testing - attention: totaly different syntax
F_IIF use the build-in-function DECODE - attention: totaly different syntax
F_EXP use the build-in-function EXP
F_FLOOR use the build-in-function FLOOR
GEN_UUID creates a UUID but not RFC4122
F_LEFT use the build-in-function LEFT
F_LN use the build-in-function LN
F_LOG use the build-in-function LOG - attention: position of parameters changed
F_LOG10 use the build-in-function LOG10
F_LPAD use the build-in-function  LPAD - attention: if the string to replace is longer than 1 character AND the return-string is too long, LPAD cuts at the right site of the string to replace, F_PADLEFT on the left site
F_MAX (F_MAXNUM) use the build-in-function MAXVALUE
F_MIN (F_MINNUM) use the build-in-function MINVALUE
F_MODULO use the build-in-function MOD
F_STRSTUFF use the build-in-function OVERLAY - attention: totaly different syntax
F_PI use the build-in-function PI
F_STRPOS use the build-in-function POSITION - attention: totaly different syntax
F_POWER use the build-in-function POWER
F_RAND use the build-in-function RAND
F_REPLACE use the build-in-function REPLACE
F_REVERSE use the build-in-function REVERSE
F_RIGHT use the build-in-function RIGHT
F_ZAHLRUNDEN (F_ROUNDCOMMON) use the build-in-function ROUND - attention: the build-in-function ROUND can also round the digits before the decimal point
F_RPADRIGHT (F_RIGHTPAD) use the build-in-function RPAD
F_SIGN use the build-in-function SIGN
F_SIN use the build-in-function SIN
F_SINH use the build-in-function SINH
F_SQRT use the build-in-function SQRT
F_TAN use the build-in-function TAN
F_TANH use the build-in-function TANH
F_TRUNCATE use the build-in-function TRUNC     
nach oben • go top • vers le hautnächste Seite • next page • prochain site