I would like to extract the first 6 digits of a numeric value (e.g.
the string '123456' out of the numeric 123456789012345 6789). I tried
a combination of CAST and SUBSTR, but it seems I am not doing the
conversion properly. Please advice:
$ cat substr.sql
connect to viper
@
create table largenum (id integer not null, lval decimal(21,0) not
null)
@
insert into largenum values (1, 123456789012345 6789)
@
select lval from largenum
@
select substr(cast(lva l as char), 1, 6) from largenum
@
drop table largenum
@
connect reset
@
terminate
@
$ db2 -td@ -f substr.sql
Database Connection Information
Database server = DB2/LINUX 9.5.0
SQL authorization ID = DB2INST3
Local database alias = VIPER
DB20000I The SQL command completed successfully.
DB20000I The SQL command completed successfully.
LVAL
-----------------------
123456789012345 6789.
1 record(s) selected.
SQL0138N A numeric argument of a built-in string function is out of
range.
SQLSTATE=22011
DB20000I The SQL command completed successfully.
DB20000I The SQL command completed successfully.
DB20000I The TERMINATE command completed successfully.
--
4  24650 
On Apr 9, 2:42 pm, "Serman D." <serma...@hotma il.comwrote:
I would like to extract the first 6 digits of a numeric value (e.g.
the string '123456' out of the numeric 123456789012345 6789). I tried
a combination of CAST and SUBSTR, but it seems I am not doing the
conversion properly. Please advice:
$ cat substr.sql
connect to viper
@
create table largenum (id integer not null, lval decimal(21,0) not
null)
@
insert into largenum values (1, 123456789012345 6789)
@
select lval from largenum
@
select substr(cast(lva l as char), 1, 6) from largenum
@
drop table largenum
@
connect reset
@
terminate
@
$ db2 -td@ -f substr.sql
Database Connection Information
Database server = DB2/LINUX 9.5.0
SQL authorization ID = DB2INST3
Local database alias = VIPER
DB20000I The SQL command completed successfully.
DB20000I The SQL command completed successfully.
LVAL
-----------------------
123456789012345 6789.
1 record(s) selected.
SQL0138N A numeric argument of a built-in string function is out of
range.
SQLSTATE=22011
DB20000I The SQL command completed successfully.
DB20000I The SQL command completed successfully.
DB20000I The TERMINATE command completed successfully.
--
You need to cast it to something bigger than a single char. I.e.:
db2 "select substr(cast(lva l as char(22)),3,6) from largenum"
1
------
123456
1 record(s) selected.
/Lennart
On Apr 9, 3:20 pm, Lennart <Erik.Lennart.J ons...@gmail.co mwrote:
db2 "select substr(cast(lva l as char(22)),3,6) from largenum"
Thank you for your replay Lennart. I have some follow-up questions:
1. Why are leading zeros added in the cast from numeric to char?
2. How do I reliably remove them?
3. Consider the below sample: What query returns the string '123456'
for the all rows?
create table largenum (lval decimal(21,0) not null)
@
insert into largenum values
(12345678901234 56789),
( 123456789012345 678),
( 123456789012345 67),
( 123456789012345 6),
( 123456789012345 ),
( 12345678901234) ,
( 1234567890123),
( 123456789012)
@
select substr(cast(lva l as char(64)), 3, 6) as as_char from largenum
@
AS_CHAR
-------
123456
012345
001234
000123
000012
000001
000000
000000
8 record(s) selected.
--
your previous code indicates you are on Version 9
Database server = DB2/LINUX 9.5.0
SQL authorization ID = DB2INST3
Local database alias = VIPER
Did you try the STRIP function already?
db2 "values(STRIP(' 00123',L,'0'))"
1
-----
123
Regards,
Florian
On Apr 10, 9:22 am, "Serman D." <serma...@hotma il.comwrote:
On Apr 9, 3:20 pm, Lennart <Erik.Lennart.J ons...@gmail.co mwrote:
db2 "select substr(cast(lva l as char(22)),3,6) from largenum"
Thank you for your replay Lennart. I have some follow-up questions:
1. Why are leading zeros added in the cast from numeric to char?
2. How do I reliably remove them?
3. Consider the below sample: What query returns the string '123456'
for the all rows?
create table largenum (lval decimal(21,0) not null)
@
insert into largenum values
(12345678901234 56789),
( 123456789012345 678),
( 123456789012345 67),
( 123456789012345 6),
( 123456789012345 ),
( 12345678901234) ,
( 1234567890123),
( 123456789012)
@
select substr(cast(lva l as char(64)), 3, 6) as as_char from largenum
@
AS_CHAR
-------
123456
012345
001234
000123
000012
000001
000000
000000
8 record(s) selected.
--
Something like:
select substr(cast(lva l as char(22)), 22 - length(strip(ca st(lval as
char(22)), L, '0')) + 1, 6) as as_char from largenum"
AS_CHAR
-------
123456
123456
123456
123456
123456
123456
123456
123456
/Lennart This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics | |
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